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Google Keyword Rankings for : db2 case when is null
1
CASE expressions - Db2 SQL - IBM
https://www.ibm.com/docs/en/db2-for-zos/11?topic=e-case-expressions
If no case evaluates to true and the ELSE keyword is not present, the result is NULL. When a case evaluates to unknown (because of NULL values), the case is NOT ...
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https://www.ibm.com/docs/en/db2-for-zos/11?topic=e-case-expressions
If no case evaluates to true and the ELSE keyword is not present, the result is NULL. When a case evaluates to unknown (because of NULL values), the case is NOT ...
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2
VALIDATE NULL VALUE IN DB2 CASE STATEMENT
https://ibmmainframes.com/about65720.html
I have a indicator "y" or "n". based on this indicator I need to select the value (where clause using db2 case). in the below example if the IND ...
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https://ibmmainframes.com/about65720.html
I have a indicator "y" or "n". based on this indicator I need to select the value (where clause using db2 case). in the below example if the IND ...
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3
Db2 CASE Expressions: Adding If-Else Logic to Queries in Db2
https://www.db2tutorial.com/db2-basics/db2-case-expression/
The COALESCE() function accepts a number of arguments and returns the first non-NULL argument. If all arguments are NULL, the COALESCE() function returns NULL.
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https://www.db2tutorial.com/db2-basics/db2-case-expression/
The COALESCE() function accepts a number of arguments and returns the first non-NULL argument. If all arguments are NULL, the COALESCE() function returns NULL.
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4
9.19.11.CASE, NULLIF, COALESCE, CAST Value Expressions
https://docs.openlinksw.com/virtuoso/caseandco/
CASE col1 WHEN 'something' THEN NULL ELSE col1 END. This is replaced by the NULLIF expression which achieves the same result using the following, ...
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https://docs.openlinksw.com/virtuoso/caseandco/
CASE col1 WHEN 'something' THEN NULL ELSE col1 END. This is replaced by the NULLIF expression which achieves the same result using the following, ...
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5
How to use case in select query in db2 - Spiceworks Community
https://community.spiceworks.com/topic/2396338-how-to-use-case-in-select-query-in-db2
Yes, NULL is the default for DB2 CASE. And for CASE in other DBMSes too. flagReport. Was this post helpful? thumb_up thumb_down.
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https://community.spiceworks.com/topic/2396338-how-to-use-case-in-select-query-in-db2
Yes, NULL is the default for DB2 CASE. And for CASE in other DBMSes too. flagReport. Was this post helpful? thumb_up thumb_down.
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6
DB2 - SQL Case Statement - DB2 Tutorial - IBMMainframer
https://www.ibmmainframer.com/db2-tutorial/db2-sql-case-statement/
If ELSE part is not added in CASE statement and no conditions are true, it returns NULL value. syntax: CASE WHEN condition1 THEN result1 WHEN condition2 THEN ...
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https://www.ibmmainframer.com/db2-tutorial/db2-sql-case-statement/
If ELSE part is not added in CASE statement and no conditions are true, it returns NULL value. syntax: CASE WHEN condition1 THEN result1 WHEN condition2 THEN ...
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7
SQL CASE works in practically all SQL-Databases
https://modern-sql.com/feature/case
SQL offers two case abbreviations to cope with null : coalesce and nullif . Both are used like functions and do not use the keywords case , when , then , else ...
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https://modern-sql.com/feature/case
SQL offers two case abbreviations to cope with null : coalesce and nullif . Both are used like functions and do not use the keywords case , when , then , else ...
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8
A Quick Glance on the DB2 ISNULL - eduCBA
https://www.educba.com/db2-isnull/
While retrieving and displaying the data to the user, it is not good to display the NULL values of certain columns. In that case, we can use the ISNULL function ...
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https://www.educba.com/db2-isnull/
While retrieving and displaying the data to the user, it is not good to display the NULL values of certain columns. In that case, we can use the ISNULL function ...
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9
CASE statement in SQL Queries with Examples - Tech Agilist
https://www.techagilist.com/mainframe/case-statement-use-sql-queries/
If no WHEN matches, the value in the ELSE clause applies. If no WHEN matches and there is no ELSE clause, the result is NULL. There must be at ...
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https://www.techagilist.com/mainframe/case-statement-use-sql-queries/
If no WHEN matches, the value in the ELSE clause applies. If no WHEN matches and there is no ELSE clause, the result is NULL. There must be at ...
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10
What is NULL check and insertion rule in a DB2 table?
https://www.tutorialspoint.com/what-is-null-check-and-insertion-rule-in-a-db2-table
Null in DB2 is defined as nothing. It is an unknown value. If we want to restrict NULL value in any column then the column should be defined ...
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https://www.tutorialspoint.com/what-is-null-check-and-insertion-rule-in-a-db2-table
Null in DB2 is defined as nothing. It is an unknown value. If we want to restrict NULL value in any column then the column should be defined ...
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11
DB2 and Nulls are Much Ado About Nothing - TDAN.com
https://tdan.com/db2-and-null-are-much-ado-about-nothing/28888
What Are The Issues with Null? · When a nullable column participates in an ORDER BY or GROUP BY clause, the returned nulls are grouped at the high end of the ...
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https://tdan.com/db2-and-null-are-much-ado-about-nothing/28888
What Are The Issues with Null? · When a nullable column participates in an ORDER BY or GROUP BY clause, the returned nulls are grouped at the high end of the ...
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12
Using IS NULL in CASE Expression in WHERE Clause [closed]
https://dba.stackexchange.com/questions/182331/using-is-null-in-case-expression-in-where-clause
You can check if a field or variable is equal to NULL because all comparisons to NULL return NULL (which in a CASE or IF predicate is taken as ...
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https://dba.stackexchange.com/questions/182331/using-is-null-in-case-expression-in-where-clause
You can check if a field or variable is equal to NULL because all comparisons to NULL return NULL (which in a CASE or IF predicate is taken as ...
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13
Using Nulls in DB2 - SQL
http://www.cadcobol.com.br/db2_sql_using_nulls_in_time.htm
Null indicates that the user did not explicitly make an entry or has explicitly entered NULL for the column. For example, a null value in the Price column of ...
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http://www.cadcobol.com.br/db2_sql_using_nulls_in_time.htm
Null indicates that the user did not explicitly make an entry or has explicitly entered NULL for the column. For example, a null value in the Price column of ...
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14
DB2 CASE式とNULL - MyMemoWikiOld - TYPEA.INFO
https://typea.info/tips/wiki.cgi?page=DB2+CASE%BC%B0%A4%C8NULL
CASE WHEN e1=e2 THEN NULL ELSE e1 END, NULLIF(e1，e2) ; CASE WHEN e1 IS NOT NULL THEN e1 ELSE e2 END, COALESCE(e1，e2).
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https://typea.info/tips/wiki.cgi?page=DB2+CASE%BC%B0%A4%C8NULL
CASE WHEN e1=e2 THEN NULL ELSE e1 END, NULLIF(e1，e2) ; CASE WHEN e1 IS NOT NULL THEN e1 ELSE e2 END, COALESCE(e1，e2).
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15
nested case statement not working - SQLite Forum
https://sqlite.org/forum/info/c29aeac3353f54d9
I took a "SQl for IBM DB2" class recently and decided to go through ... But everyone in DEPTNO = 'C01' w/ matching JOBs gets a COMM = NULL.
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https://sqlite.org/forum/info/c29aeac3353f54d9
I took a "SQl for IBM DB2" class recently and decided to go through ... But everyone in DEPTNO = 'C01' w/ matching JOBs gets a COMM = NULL.
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16
Helpful Tips For Using Nulls in DB2 | Datavail
https://www.datavail.com/blog/using-nulls-db2/
The null indicator is used by DB2 to track whether its associated column is null or not. A positive value or a value of 0 means the column is ...
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https://www.datavail.com/blog/using-nulls-db2/
The null indicator is used by DB2 to track whether its associated column is null or not. A positive value or a value of 0 means the column is ...
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17
Understanding the SQL CASE Statement and its many uses
https://blog.quest.com/sql-case-statement-what-is-it-and-what-are-the-best-ways-to-use-it/
Similarly, the query works for the remaining years. SELECT Count(CASE WHEN Datepart(yy, hiredate) = 2007 THEN 1 ELSE NULL END) AS [2007Hires], ...
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https://blog.quest.com/sql-case-statement-what-is-it-and-what-are-the-best-ways-to-use-it/
Similarly, the query works for the remaining years. SELECT Count(CASE WHEN Datepart(yy, hiredate) = 2007 THEN 1 ELSE NULL END) AS [2007Hires], ...
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18
How to SELECT Records With No NULL Values in MySQL
https://chartio.com/resources/tutorials/how-to-select-records-with-no-null-values-in-mysql/
Filtering NULL from Multiple Columns. In some cases you may desire to retrieve results where no NULL values are present across multiple columns. For example, ...
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https://chartio.com/resources/tutorials/how-to-select-records-with-no-null-values-in-mysql/
Filtering NULL from Multiple Columns. In some cases you may desire to retrieve results where no NULL values are present across multiple columns. For example, ...
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19
Learn CASE Expression in DB2 Using SQL Tutorial (1651)
https://www.wisdomjobs.com/e-university/db2-using-sql-tutorial-283/case-expression-1651.html
If no WHEN matches, the value in the ELSE clause applies. If no WHEN matches and there is no ELSE clause, the result is NULL. There must be at least one non- ...
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https://www.wisdomjobs.com/e-university/db2-using-sql-tutorial-283/case-expression-1651.html
If no WHEN matches, the value in the ELSE clause applies. If no WHEN matches and there is no ELSE clause, the result is NULL. There must be at least one non- ...
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20
How to Deal With NULL Values in SQL the Right Way
https://betterprogramming.pub/how-to-deal-with-null-values-in-sql-the-right-way-69861f2debbf
Since the expression in the case of Eric Cartman evaluated to NULL, the ISNULL function returned the value, Missing . For other students, the expression was ...
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https://betterprogramming.pub/how-to-deal-with-null-values-in-sql-the-right-way-69861f2debbf
Since the expression in the case of Eric Cartman evaluated to NULL, the ISNULL function returned the value, Missing . For other students, the expression was ...
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21
SQL's NULL values: comparing, sorting, converting ... - SILOTA
http://www.silota.com/docs/recipes/sql-null-compare-sort-coalesce-joining.html
Though your original data does not have NULLs, there are two cases where your query can generate rows with NULL values: Outer joins, when you want to fill ...
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http://www.silota.com/docs/recipes/sql-null-compare-sort-coalesce-joining.html
Though your original data does not have NULLs, there are two cases where your query can generate rows with NULL values: Outer joins, when you want to fill ...
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22
DECODE Function - Oracle to SQL Server Migration - SQLines
https://www.sqlines.com/oracle-to-sql-server/decode
-- WHEN NULL is never true SELECT name, CASE name WHEN NULL THEN 'N/A' WHEN 'Unknown' THEN 'N/A' ELSE name END decoded FROM cities; -- CASE without NULL ...
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https://www.sqlines.com/oracle-to-sql-server/decode
-- WHEN NULL is never true SELECT name, CASE name WHEN NULL THEN 'N/A' WHEN 'Unknown' THEN 'N/A' ELSE name END decoded FROM cities; -- CASE without NULL ...
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23
CASE WHEN Problem with CASE NULL - MSDN - Microsoft
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/a297d5a0-f314-4858-9859-c6e37f656080/case-when-problem-with-case-null?forum=transactsql
Here is the proper syntax for cheking a NULL value in a CASE statment. ... Hi Vladimir,. The CASE statement has 2 forms which need to be ...
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https://social.msdn.microsoft.com/Forums/sqlserver/en-US/a297d5a0-f314-4858-9859-c6e37f656080/case-when-problem-with-case-null?forum=transactsql
Here is the proper syntax for cheking a NULL value in a CASE statment. ... Hi Vladimir,. The CASE statement has 2 forms which need to be ...
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24
SQL: IS NOT NULL Condition - TechOnTheNet
https://www.techonthenet.com/sql/is_not_null.php
The IS NOT NULL condition is used in SQL to test for a non-NULL value. It returns TRUE if a non-NULL value is found, otherwise it returns FALSE.
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https://www.techonthenet.com/sql/is_not_null.php
The IS NOT NULL condition is used in SQL to test for a non-NULL value. It returns TRUE if a non-NULL value is found, otherwise it returns FALSE.
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25
Where Clause Syntax - Advanced query tool
https://www.querytool.com/help/1169.htm
For instance Sybase, SQL Server and MS Access are case insensitive, Oracle and DB2 are case sensitive. This also depends to some extent on how the database has ...
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https://www.querytool.com/help/1169.htm
For instance Sybase, SQL Server and MS Access are case insensitive, Oracle and DB2 are case sensitive. This also depends to some extent on how the database has ...
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26
Pitfalls of using CASE statements in the where clause
https://groups.google.com/g/bit.listserv.db2-l/c/7hedD8CiQVQ
Be careful when using CASE statements in the WHERE clause of DB2 SQL ... CASE WHEN TQ.UNIT_MEAS = 'NR' THEN CASE WHEN TQ.RSDL_MIN IS NOT NULL THEN 0
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https://groups.google.com/g/bit.listserv.db2-l/c/7hedD8CiQVQ
Be careful when using CASE statements in the WHERE clause of DB2 SQL ... CASE WHEN TQ.UNIT_MEAS = 'NR' THEN CASE WHEN TQ.RSDL_MIN IS NOT NULL THEN 0
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27
How to Replace Nulls with 0s in SQL - Data School
https://dataschool.com/learn-sql/how-to-replace-nulls-with-0s/
Null Values can be replaced in SQL by using UPDATE, SET, and WHERE to search a column in a table for nulls and replace them. In the example above it ...
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https://dataschool.com/learn-sql/how-to-replace-nulls-with-0s/
Null Values can be replaced in SQL by using UPDATE, SET, and WHERE to search a column in a table for nulls and replace them. In the example above it ...
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28
Using Exclude Null Keys Indexes to improve performance | DB2
https://www.idug.org/communities/community-home/digestviewer/viewthread?GroupId=253&MID=168583&CommunityKey=02a8700a-dc76-4190-9a3c-24f0738c1067&ReturnUrl=%2Fcommunities%2Fcommunity-home%2Fdigestviewer%3FCommunityKey%3D02a8700a-dc76-4190-9a3c-24f0738c1067
I can't tell which way you're using the index – are you trying to exclude cases where the column is not null? Or include them? In either case, the filter ...
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https://www.idug.org/communities/community-home/digestviewer/viewthread?GroupId=253&MID=168583&CommunityKey=02a8700a-dc76-4190-9a3c-24f0738c1067&ReturnUrl=%2Fcommunities%2Fcommunity-home%2Fdigestviewer%3FCommunityKey%3D02a8700a-dc76-4190-9a3c-24f0738c1067
I can't tell which way you're using the index – are you trying to exclude cases where the column is not null? Or include them? In either case, the filter ...
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29
How to Use CASE WHEN With SUM() in SQL | LearnSQL.com
https://learnsql.com/blog/case-when-with-sum/
Instead, there are NULL values. Remember: when the rows don't match any of the conditions defined, the CASE statement will return NULL ...
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https://learnsql.com/blog/case-when-with-sum/
Instead, there are NULL values. Remember: when the rows don't match any of the conditions defined, the CASE statement will return NULL ...
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30
RDBNullValues - RDB2RDF
https://www.w3.org/2001/sw/rdb2rdf/wiki/RDBNullValues
However, when NULL values are involved, there are cases when the SPARQL query gives me ... DB2: { }. Query B: select * from R as x, R as y where x.A = y.A.
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https://www.w3.org/2001/sw/rdb2rdf/wiki/RDBNullValues
However, when NULL values are involved, there are cases when the SPARQL query gives me ... DB2: { }. Query B: select * from R as x, R as y where x.A = y.A.
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31
How to replace NULL with Empty String in SQL Server ...
https://javarevisited.blogspot.com/2015/10/how-to-replace-null-with-empty-string-in-SQL-SERVER-isnull-collesce-example.html
There are two ways to replace NULL with blank values in SQL Server, function ISNULL(), and COALESCE(). Both functions replace the value you provide when the ...
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https://javarevisited.blogspot.com/2015/10/how-to-replace-null-with-empty-string-in-SQL-SERVER-isnull-collesce-example.html
There are two ways to replace NULL with blank values in SQL Server, function ISNULL(), and COALESCE(). Both functions replace the value you provide when the ...
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32
NULL value should be cast to an explicit type for DB2 dialect
https://github.com/jOOQ/jOOQ/issues/172
In this case we must cast the the correct data type (in this case the data type of the ADDRESS column is VARCHAR(200)). This is a valid sql:.
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https://github.com/jOOQ/jOOQ/issues/172
In this case we must cast the the correct data type (in this case the data type of the ADDRESS column is VARCHAR(200)). This is a valid sql:.
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33
how to process null values from DB2 z/os to S3 buc...
https://community.qlik.com/t5/Qlik-Replicate/how-to-process-null-values-from-DB2-z-os-to-S3-bucket-with/td-p/1800983
There is space value in db2 z/os (version 11 CM) columns, ... named keepCharTrailingSpaces (case sensitive) and check the value box, ...
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https://community.qlik.com/t5/Qlik-Replicate/how-to-process-null-values-from-DB2-z-os-to-S3-bucket-with/td-p/1800983
There is space value in db2 z/os (version 11 CM) columns, ... named keepCharTrailingSpaces (case sensitive) and check the value box, ...
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34
Null indicator byte processing - HCL Product Documentation
https://help.hcltechsw.com/zdt/1.1.0/en/db2/motnib.html
The field name for the null indicator byte contains "NULL". In this case, ZDT/Db2 documents the mapping as comments in the generated JCL for the Db2® UNLOAD ...
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https://help.hcltechsw.com/zdt/1.1.0/en/db2/motnib.html
The field name for the null indicator byte contains "NULL". In this case, ZDT/Db2 documents the mapping as comments in the generated JCL for the Db2® UNLOAD ...
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35
Using Nulls in DB2 - The Db2 Portal Blog
https://db2portal.blogspot.com/2006/04/using-nulls-in-db2.html
So, a CHAR(10) column that is nullable will require 11 bytes of storage per row – 10 for the data and 1 for the null indicator. This is the case ...
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https://db2portal.blogspot.com/2006/04/using-nulls-in-db2.html
So, a CHAR(10) column that is nullable will require 11 bytes of storage per row – 10 for the data and 1 for the null indicator. This is the case ...
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36
How to Use SQL Server Coalesce to Work with NULL Values
https://www.mssqltips.com/sqlservertip/6475/how-to-use-sql-server-coalesce-to-work-with-null-values/
When this is the case, a SELECT statement that uses WHERE columnname = NULL or columnname <> NULL will always return zero rows even if there ...
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https://www.mssqltips.com/sqlservertip/6475/how-to-use-sql-server-coalesce-to-work-with-null-values/
When this is the case, a SELECT statement that uses WHERE columnname = NULL or columnname <> NULL will always return zero rows even if there ...
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37
NULLs, Null Values, and Indicator Variables - TechDocs
https://techdocs.broadcom.com/us/en/ca-mainframe-software/rai/rlx/1-0/rlx-for-db2-rexx-language-xtensions-user-guide-and-reference/the-rlx-sql-interface---an-overview/sql-host-variables/nulls-null-values-and-indicator-variables.html
If an indicator variable is provided, Db2 sets the indicator variable to a negative value (such as -1) and leaves the main host variable ...
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https://techdocs.broadcom.com/us/en/ca-mainframe-software/rai/rlx/1-0/rlx-for-db2-rexx-language-xtensions-user-guide-and-reference/the-rlx-sql-interface---an-overview/sql-host-variables/nulls-null-values-and-indicator-variables.html
If an indicator variable is provided, Db2 sets the indicator variable to a negative value (such as -1) and leaves the main host variable ...
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38
SQL inserting NULL values - w3resource
https://www.w3resource.com/sql/insert-statement/insert-null.php
The SQL INSERT statement can also be used to insert NULL value for a column.
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https://www.w3resource.com/sql/insert-statement/insert-null.php
The SQL INSERT statement can also be used to insert NULL value for a column.
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39
Conditional WHERE clauses in SQL - Avoid Smart Logic
https://use-the-index-luke.com/sql/where-clause/obfuscation/smart-logic
IS NULL” cause SQL performance problems. ... harm than good if the database uses a shared execution plan cache like DB2, the Oracle database, or SQL Server.
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https://use-the-index-luke.com/sql/where-clause/obfuscation/smart-logic
IS NULL” cause SQL performance problems. ... harm than good if the database uses a shared execution plan cache like DB2, the Oracle database, or SQL Server.
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40
SQL COALESCE Function: Handling NULL Values Effectively
https://www.sqltutorial.org/sql-comparison-functions/sql-coalesce/
The COALESCE function returns NULL if all arguments are NULL . The following statement returns 1 because 1 is the first non-NULL argument. SELECT COALESCE(1, ...
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https://www.sqltutorial.org/sql-comparison-functions/sql-coalesce/
The COALESCE function returns NULL if all arguments are NULL . The following statement returns 1 because 1 is the first non-NULL argument. SELECT COALESCE(1, ...
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41
Check if is column nullable in Db2 database - Dataedo
https://dataedo.com/kb/query/db2/check-column-nullable
Query. select tabschema as schema_name, tabname as table_name, colname as column_name, case nulls when 'N' then 'not nullable' when 'Y' then ...
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https://dataedo.com/kb/query/db2/check-column-nullable
Query. select tabschema as schema_name, tabname as table_name, colname as column_name, case nulls when 'N' then 'not nullable' when 'Y' then ...
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42
Understanding the SQL Server CASE statement - SQLShack
https://www.sqlshack.com/understanding-sql-server-case-statement/
Master the Case statement in SQL Server the quick way with this detailed guide which walks you through ... condition VARCHAR(50) NOT NULL.
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https://www.sqlshack.com/understanding-sql-server-case-statement/
Master the Case statement in SQL Server the quick way with this detailed guide which walks you through ... condition VARCHAR(50) NOT NULL.
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43
Three Critical Null in DB2 Column Considerations - Dave Beulke
https://davebeulke.com/db2-temporal-tables-performance-three-critical-null-in-db2-column-considerations/
First, remember the basic rules for using a NULL in DB2: any table column can be NULLable, NULL in DB2 means the absence of any value, and not ...
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https://davebeulke.com/db2-temporal-tables-performance-three-critical-null-in-db2-column-considerations/
First, remember the basic rules for using a NULL in DB2: any table column can be NULLable, NULL in DB2 means the absence of any value, and not ...
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44
Dirty Secrets of the CASE Expression - SQLPerformance.com
https://sqlperformance.com/2014/06/t-sql-queries/dirty-secrets-of-the-case-expression
Detailed guide with T-SQL CASE expression explanation, examples, ... more complex expressions, such as inequality, LIKE, or IS NOT NULL:
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https://sqlperformance.com/2014/06/t-sql-queries/dirty-secrets-of-the-case-expression
Detailed guide with T-SQL CASE expression explanation, examples, ... more complex expressions, such as inequality, LIKE, or IS NOT NULL:
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45
Handling the NULL Values Effectively with the SQL ...
https://codingsight.com/handling-null-values-effectively-with-sql-coalesce-function-for-beginners/
Any value yet to be assigned to a table's column is a NULL value. In other words, NULL means an uninitialized value of a column in the table.
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https://codingsight.com/handling-null-values-effectively-with-sql-coalesce-function-for-beginners/
Any value yet to be assigned to a table's column is a NULL value. In other words, NULL means an uninitialized value of a column in the table.
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46
Multiple NULL values in a Unique index in SQL Server/DB2 ...
https://decipherinfosys.wordpress.com/2007/11/30/multiple-null-values-in-a-unique-index-in-sql-serverdb2-luw/
For example, what-if you needed to do this on a column that was also an interger data-type column? In that case, chances of clashes of the data ...
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https://decipherinfosys.wordpress.com/2007/11/30/multiple-null-values-in-a-unique-index-in-sql-serverdb2-luw/
For example, what-if you needed to do this on a column that was also an interger data-type column? In that case, chances of clashes of the data ...
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47
SQL and null - RPGPGM.COM
https://www.rpgpgm.com/2016/04/sql-and-null.html
The common place that an IBM i developer encounters null values is when using SQL. Not only do nulls occur in the columns of tables, ...
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https://www.rpgpgm.com/2016/04/sql-and-null.html
The common place that an IBM i developer encounters null values is when using SQL. Not only do nulls occur in the columns of tables, ...
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48
How to set null to date column in DB2 - Oracle Communities
https://community.oracle.com/tech/developers/discussion/1341757/how-to-set-null-to-date-column-in-db2
I am trying to execute following SQL query on DB2 database with ... SQL column is a Date column, in which case you'd need something like
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https://community.oracle.com/tech/developers/discussion/1341757/how-to-set-null-to-date-column-in-db2
I am trying to execute following SQL query on DB2 database with ... SQL column is a Date column, in which case you'd need something like
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49
Null (SQL) - Wikipedia
https://en.wikipedia.org/wiki/Null_(SQL)
In SQL, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the creator of the relational ...
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https://en.wikipedia.org/wiki/Null_(SQL)
In SQL, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the creator of the relational ...
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50
SQL CASE - W3Schools
https://www.w3schools.com/sql/sql_ref_case.asp
SQL CASE Keyword ... The CASE command is used is to create different output based on conditions. ... (CASE WHEN City IS NULL THEN Country ELSE City
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https://www.w3schools.com/sql/sql_ref_case.asp
SQL CASE Keyword ... The CASE command is used is to create different output based on conditions. ... (CASE WHEN City IS NULL THEN Country ELSE City
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51
COALESCE SQL returns the first non-NULL value
https://www.sqlsplus.com/coalesce-sql-returns-the-first-non-null-value/
Often, some resultant value is based on the values of different columns of the table, depending on the case. Then, as a rule, the column values ...
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https://www.sqlsplus.com/coalesce-sql-returns-the-first-non-null-value/
Often, some resultant value is based on the values of different columns of the table, depending on the case. Then, as a rule, the column values ...
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52
A curious case of case when and Null values - SQL Undercover
https://sqlundercover.com/2018/11/28/a-curious-case-of-case-when-and-null-values/
The difference is that the “CASE x WHEN NULL” (simple case expression) performs an equality test, which follows the semantics that a comparison ...
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https://sqlundercover.com/2018/11/28/a-curious-case-of-case-when-and-null-values/
The difference is that the “CASE x WHEN NULL” (simple case expression) performs an equality test, which follows the semantics that a comparison ...
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53
CASE | Exasol DB Documentation
https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/case.htm
If none of the options apply, the ELSE value is returned. If this was not specified, the NULL value is returned. Examples. SELECT name, CASE grade ...
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https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/case.htm
If none of the options apply, the ELSE value is returned. If this was not specified, the NULL value is returned. Examples. SELECT name, CASE grade ...
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54
SQL Query to Select All If Parameter is Empty or NULL
https://www.tutorialgateway.org/sql-query-to-select-all-if-parameter-is-empty-or-null/
In this example, we are using the CASE Statement along with IS NULL to check whether the parameter value is NULL or not. DECLARE @Occupation VARCHAR(50) SET @ ...
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https://www.tutorialgateway.org/sql-query-to-select-all-if-parameter-is-empty-or-null/
In this example, we are using the CASE Statement along with IS NULL to check whether the parameter value is NULL or not. DECLARE @Occupation VARCHAR(50) SET @ ...
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55
BUG DB2 V8 FP12 Stored Proc Parameters - NULL value is ...
https://comp.databases.ibm-db2.narkive.com/a7Vg0zw7/bug-db2-v8-fp12-stored-proc-parameters-null-value-is-case-sensitive
I have always believed that the database handled NULL and null the same. The following statement returns the expected results: select case when NULL is null ...
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https://comp.databases.ibm-db2.narkive.com/a7Vg0zw7/bug-db2-v8-fp12-stored-proc-parameters-null-value-is-case-sensitive
I have always believed that the database handled NULL and null the same. The following statement returns the expected results: select case when NULL is null ...
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56
How to control the sort order for NULL values with the ...
https://community.progress.com/s/article/How-to-control-the-sort-order-for-NULL-values-with-the-DataServer
This is the case for Oracle RDBMS. MS SQL Server does not implement this functionality, however. Vendors who do not implement this functionality ...
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https://community.progress.com/s/article/How-to-control-the-sort-order-for-NULL-values-with-the-DataServer
This is the case for Oracle RDBMS. MS SQL Server does not implement this functionality, however. Vendors who do not implement this functionality ...
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57
how to get 0 if records have empty or null values when column ...
https://www.sqlservercentral.com/forums/topic/how-to-get-0-if-records-have-empty-or-null-values-when-column-datatype-is-numeri
Error converting data type varchar to numeric. ... You need to learn about data types. An expression in SQL Server has a static data type. CASE is ...
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https://www.sqlservercentral.com/forums/topic/how-to-get-0-if-records-have-empty-or-null-values-when-column-datatype-is-numeri
Error converting data type varchar to numeric. ... You need to learn about data types. An expression in SQL Server has a static data type. CASE is ...
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58
Designer Returns Null Value for a Column of Date D...
https://community.alteryx.com/t5/Alteryx-Designer-Knowledge-Base/Designer-Returns-Null-Value-for-a-Column-of-Date-Datatype-in-a/ta-p/662010
When connecting to a DB2 Database via ODBC in Designer, some Date datatype from a column is coming up Null when viewing from the Results ...
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https://community.alteryx.com/t5/Alteryx-Designer-Knowledge-Base/Designer-Returns-Null-Value-for-a-Column-of-Date-Datatype-in-a/ta-p/662010
When connecting to a DB2 Database via ODBC in Designer, some Date datatype from a column is coming up Null when viewing from the Results ...
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59
What does NULL mean in SQL? - Vettabase
https://vettabase.com/blog/what-does-null-mean-in-sql/
In practice, they return a single value, or NULL in case no value ... Some DBMSs, like Db2, don't allow any NULL value in UNIQUE indexes.
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https://vettabase.com/blog/what-does-null-mean-in-sql/
In practice, they return a single value, or NULL in case no value ... Some DBMSs, like Db2, don't allow any NULL value in UNIQUE indexes.
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60
Null Indicator | SQLCODE -305 - interview coaching - YouTube
https://www.youtube.com/watch?v=hwYfkTufAqk
in this video
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https://www.youtube.com/watch?v=hwYfkTufAqk
in this video
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61
SELECT NULL VALUES AS ZERO - DB2 Database - Bytes
https://bytes.com/topic/db2/answers/448966-select-null-values-zero
I've tried every function possible (IFNULL,COALESCE,CASE) to get a zero every time the column is NULL. The thing is I don't know if they are actually nulls ...
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https://bytes.com/topic/db2/answers/448966-select-null-values-zero
I've tried every function possible (IFNULL,COALESCE,CASE) to get a zero every time the column is NULL. The thing is I don't know if they are actually nulls ...
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62
What is a CASE Statement in the SQL? - JanBask Training
https://www.janbasktraining.com/blog/what-is-sql-case-statement/
What is SQL Case Statement? SQL Server Case When Null & SQL Server Case Sensitive What is the SQL Case Statement?
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https://www.janbasktraining.com/blog/what-is-sql-case-statement/
What is SQL Case Statement? SQL Server Case When Null & SQL Server Case Sensitive What is the SQL Case Statement?
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63
SQL NVL() Explained - Database.Guide
https://database.guide/sql-nvl-explained/
Products that use this syntax include Amazon Redshift and IBM DB2. ... In this case, I used NVL() to replace the NULL value with No Value .
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https://database.guide/sql-nvl-explained/
Products that use this syntax include Amazon Redshift and IBM DB2. ... In this case, I used NVL() to replace the NULL value with No Value .
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64
NULL Value - Multiplying 4 variables - Toad World® Forums
https://forums.toadworld.com/t/null-value-multiplying-4-variables/39412
You seem to have a NULL. You may be able to set the NULLs to a 1 and then it won't evaluate to a NULL. Don't use NVL (or similar ...
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https://forums.toadworld.com/t/null-value-multiplying-4-variables/39412
You seem to have a NULL. You may be able to set the NULLs to a 1 and then it won't evaluate to a NULL. Don't use NVL (or similar ...
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65
Null Indicator Variable (Indicator Variable)
http://db2guide.blogspot.com/2011/02/null-indicator-variable-indicator.html
The Null indicator variable are used in an Application Program as a part of exception handling while dealing with the columns which are defined as NULL ( Or say ...
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http://db2guide.blogspot.com/2011/02/null-indicator-variable-indicator.html
The Null indicator variable are used in an Application Program as a part of exception handling while dealing with the columns which are defined as NULL ( Or say ...
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66
DB2 – CASE Statement – Improve Performance
https://mainframesf1.com/2016/12/20/db2-case-statement-improve-performance/
DB2 – CASE Statement – Improve Performance · Put the most frequently occurring conditions first. A CASE statement stops evaluations when the ...
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https://mainframesf1.com/2016/12/20/db2-case-statement-improve-performance/
DB2 – CASE Statement – Improve Performance · Put the most frequently occurring conditions first. A CASE statement stops evaluations when the ...
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67
COUNT DISTINCT with CASE WHEN … THEN - TablePlus
https://tableplus.com/blog/2019/09/count-distinct-case-when-then.html
COUNT DISTINCT function returns the number of unique non-NULL values after removing all the duplicated row using the given expression.
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https://tableplus.com/blog/2019/09/count-distinct-case-when-then.html
COUNT DISTINCT function returns the number of unique non-NULL values after removing all the duplicated row using the given expression.
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68
case statement in db2 update query site:stackoverflow.com
https://ms.qa.edu.vn/search?q=case+statement+in+db2+update+query+site:stackoverflow.com&num=20&hl=ms&ie=UTF-8
CASE STRUCTURE IN A DB2 SQL UPDATE - Stack Overflow stackoverflow.com › questions ... no way to do in this way, since a primary key could never be null. and ...
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https://ms.qa.edu.vn/search?q=case+statement+in+db2+update+query+site:stackoverflow.com&num=20&hl=ms&ie=UTF-8
CASE STRUCTURE IN A DB2 SQL UPDATE - Stack Overflow stackoverflow.com › questions ... no way to do in this way, since a primary key could never be null. and ...
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69
How to handle the null indiactor - mainframegurukul.com
http://www.mainframegurukul.com/ibmmainframeforums/viewtopic.php?t=617
sql code -305 , Use null indiactor in db2 ... case better go and handle -305, if query hit -305 move space/zero's into host variable.
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http://www.mainframegurukul.com/ibmmainframeforums/viewtopic.php?t=617
sql code -305 , Use null indiactor in db2 ... case better go and handle -305, if query hit -305 move space/zero's into host variable.
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70
Cannot query for a null value in a datetime field ... - OutSystems
https://www.outsystems.com/forums/discussion/32237/cannot-query-for-a-null-value-in-a-datetime-field-from-an-external-mysql-db/
The extension is currently set to "Convert to/from NULL values in ... system will convert implicitly from NULL to NullDate() (in this case), ...
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https://www.outsystems.com/forums/discussion/32237/cannot-query-for-a-null-value-in-a-datetime-field-from-an-external-mysql-db/
The extension is currently set to "Convert to/from NULL values in ... system will convert implicitly from NULL to NullDate() (in this case), ...
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71
How To Use Case Statement In Order By Clause - Tech-Recipes
https://www.tech-recipes.com/database/how-to-use-case-statement-in-order-by-clause/
In the following example, we're using CASE statement to check if the row value is NULL then assign a number as 1 and for all the NOT NULL ...
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https://www.tech-recipes.com/database/how-to-use-case-statement-in-order-by-clause/
In the following example, we're using CASE statement to check if the row value is NULL then assign a number as 1 and for all the NOT NULL ...
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72
How to Filter for SQL Null or Empty String
https://www.sqltrainingonline.com/how-to-filter-for-sql-null-or-empty-string/
A null value in a database really means the lack of a value. It is a special “value” that you can't compare to using the normal operators. You ...
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https://www.sqltrainingonline.com/how-to-filter-for-sql-null-or-empty-string/
A null value in a database really means the lack of a value. It is a special “value” that you can't compare to using the normal operators. You ...
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73
CASE Statement & Nested Case in SQL Server: T-SQL Example
https://www.guru99.com/sql-server-case.html
Similarly, MS SQL CASE statement also provides the capability to take ... matches with none of the values, then Null will be displayed.
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https://www.guru99.com/sql-server-case.html
Similarly, MS SQL CASE statement also provides the capability to take ... matches with none of the values, then Null will be displayed.
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74
A MIN, a VIEW, a UNION ALL, and a DB2 SQLSTATE Mystery ...
http://robertsdb2blog.blogspot.com/2012/01/min-view-union-all-and-db2-sqlstate.html
If a leg of the UNION ALL generates an empty result set, the "split" MIN applied to that leg will return a null value (from the DB2 for z/OS SQL ...
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http://robertsdb2blog.blogspot.com/2012/01/min-view-union-all-and-db2-sqlstate.html
If a leg of the UNION ALL generates an empty result set, the "split" MIN applied to that leg will return a null value (from the DB2 for z/OS SQL ...
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75
A Case for CASE - IT Jungle
https://www.itjungle.com/2010/03/10/fhg031010-story01/
This includes SQL in DB2 for i, where it is available as the CASE statement ... Employee 30, John, receives a null job title, indicated by a ...
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https://www.itjungle.com/2010/03/10/fhg031010-story01/
This includes SQL in DB2 for i, where it is available as the CASE statement ... Employee 30, John, receives a null job title, indicated by a ...
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76
SQL Error Return Codes in Db2 12 – BMC Software | Blogs
https://www.bmc.com/blogs/db2-sql-error-return-codes/
-087, A NULL VALUE WAS SPECIFIED IN A CONTEXT WHERE A NULL IS NOT ... -582, THE SEARCH-CONDITION IN A SEARCHED-WHEN-CLAUSE OF A CASE IS NOT ...
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https://www.bmc.com/blogs/db2-sql-error-return-codes/
-087, A NULL VALUE WAS SPECIFIED IN A CONTEXT WHERE A NULL IS NOT ... -582, THE SEARCH-CONDITION IN A SEARCHED-WHEN-CLAUSE OF A CASE IS NOT ...
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77
What is the use of NULL/NOT NULL in DB2? - DB2
https://www.ibmmainframeforum.com/db2/topic3412.html
NULL will only cause problems with programmers who are to lazy to learn how to use it. Since all programmers all lazy this would be the case ...
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https://www.ibmmainframeforum.com/db2/topic3412.html
NULL will only cause problems with programmers who are to lazy to learn how to use it. Since all programmers all lazy this would be the case ...
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78
KB31822: "SQL0407N Assignment of a NULL value to a NOT ...
https://community.microstrategy.com/s/article/KB31822-quot-SQL0407N-Assignment-of-a-NULL-value-to-a-NOT-NULL
... Assignment of a NULL value to a NOT NULL column..." error message appears when upgrading MicroStrategy Narrowcast to 9.0 against DB2.
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https://community.microstrategy.com/s/article/KB31822-quot-SQL0407N-Assignment-of-a-NULL-value-to-a-NOT-NULL
... Assignment of a NULL value to a NOT NULL column..." error message appears when upgrading MicroStrategy Narrowcast to 9.0 against DB2.
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79
SQL Tip: COUNTing NULL values - Benjamin's Blog
https://sqlbenjamin.wordpress.com/2013/12/27/sql-tip-counting-null-values/
The reason this will work is because when there is no “ELSE” in a CASE statement any row not meeting the criteria is treated as a NULL.
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https://sqlbenjamin.wordpress.com/2013/12/27/sql-tip-counting-null-values/
The reason this will work is because when there is no “ELSE” in a CASE statement any row not meeting the criteria is treated as a NULL.
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80
DB2 files with NULL data moving to CSV - Code400
https://code400.com/forum/forum/iseries-programming-languages/db2/13962-db2-files-with-null-data-moving-to-csv
I work with nulls in sql all the time. Value(myField,' ') (or 0 if decimal). Also testing....When case Myfield is Null then .... end.
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https://code400.com/forum/forum/iseries-programming-languages/db2/13962-db2-files-with-null-data-moving-to-csv
I work with nulls in sql all the time. Value(myField,' ') (or 0 if decimal). Also testing....When case Myfield is Null then .... end.
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81
DBNULL= Data Set Option - SAS Help Center
https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.5/acreldb/n02dxkald2zj41n1egrcaaeskdp1.htm
Indicates whether NULL is a valid value for the specified columns when ... Data source: Amazon Redshift, Aster, DB2 under UNIX and PC Hosts, ...
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https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.5/acreldb/n02dxkald2zj41n1egrcaaeskdp1.htm
Indicates whether NULL is a valid value for the specified columns when ... Data source: Amazon Redshift, Aster, DB2 under UNIX and PC Hosts, ...
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82
DB2 CASE expression - Mainframe Tips, Tricks And Tutorials
http://mainframe-tips-and-tricks.blogspot.com/2012/11/db2-case-expression.html
DB2 CASE expression · A CASE expression allows an SQL statement to be executed in one of several different ways, depending on the value of a ...
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http://mainframe-tips-and-tricks.blogspot.com/2012/11/db2-case-expression.html
DB2 CASE expression · A CASE expression allows an SQL statement to be executed in one of several different ways, depending on the value of a ...
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83
CR2011 - Date Filter: iSeries DB2/400 Null Date
https://answers.sap.com/questions/10099770/cr2011---date-filter-iseries-db2400-null-date.html
Hi Gary,According to my knowledge,like IBMi (AS/400, iSeries) DB2/400 database, Crystal doesn't convert the default value to 1/1/0001.I think it is taking ...
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https://answers.sap.com/questions/10099770/cr2011---date-filter-iseries-db2400-null-date.html
Hi Gary,According to my knowledge,like IBMi (AS/400, iSeries) DB2/400 database, Crystal doesn't convert the default value to 1/1/0001.I think it is taking ...
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84
column does not allow nulls. INSERT fails - SQL Compare 12 ...
https://documentation.red-gate.com/sc12/troubleshooting/error-messages/error-comparing-db1-vs-db2-cannot-insert-the-value-null-into-column-yourcolumn-table-database-dbo-tmp_rg_xx_mytable-column-does-not-allow-nulls-insert-fails
Error Comparing DB1 vs DB2. Cannot insert the value NULL into column 'YourColumn', table 'database.dbo.tmp_rg_xx_MyTable'; column does not ...
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https://documentation.red-gate.com/sc12/troubleshooting/error-messages/error-comparing-db1-vs-db2-cannot-insert-the-value-null-into-column-yourcolumn-table-database-dbo-tmp_rg_xx_mytable-column-does-not-allow-nulls-insert-fails
Error Comparing DB1 vs DB2. Cannot insert the value NULL into column 'YourColumn', table 'database.dbo.tmp_rg_xx_MyTable'; column does not ...
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85
How to set db cfg to empty value - DBA DB2
https://www.dba-db2.com/2011/11/how-to-set-dbm-cfg-to-empty-value.html
How to set a DB2 LUW database cfg value to an empty value use NULL. note : It's case sensitive. Using “null” will not work.
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https://www.dba-db2.com/2011/11/how-to-set-dbm-cfg-to-empty-value.html
How to set a DB2 LUW database cfg value to an empty value use NULL. note : It's case sensitive. Using “null” will not work.
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86
SQL Tip: COALESCE - DataGeek.blog
https://datageek.blog/en/2013/05/21/sql-tip-coalesce/
case when stgfilter is null then -20 else stgfilter end ... But I don't know if the DB2 optimizer really knows the difference.
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https://datageek.blog/en/2013/05/21/sql-tip-coalesce/
case when stgfilter is null then -20 else stgfilter end ... But I don't know if the DB2 optimizer really knows the difference.
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87
db2 if statement in select
https://zditect.com/blog/52627438.html
Introduction to Db2 CASE expression A CASE expression allows you to select an expression based ... the result is the value of the result-expression or NULL.
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https://zditect.com/blog/52627438.html
Introduction to Db2 CASE expression A CASE expression allows you to select an expression based ... the result is the value of the result-expression or NULL.
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88
Does Vertica CASE statement (syntax form 2) recognize NULL ...
https://forum.vertica.com/discussion/242399/does-vertica-case-statement-syntax-form-2-recognize-null-values
Sorry! I now see this was previously answered https://forum.vertica.com/discussion/239767/null-equals-null-with-nullsequal.
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https://forum.vertica.com/discussion/242399/does-vertica-case-statement-syntax-form-2-recognize-null-values
Sorry! I now see this was previously answered https://forum.vertica.com/discussion/239767/null-equals-null-with-nullsequal.
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89
Bigquery ifnull
https://taxi-voisin.fr/bigquery-ifnull.html
The formula CASE WHEN IS NULL THEN 0 ELSE END will convert “null” values. ... using the IFNULL function. count_value as The functions nvl (Oracle, Db2), ...
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https://taxi-voisin.fr/bigquery-ifnull.html
The formula CASE WHEN IS NULL THEN 0 ELSE END will convert “null” values. ... using the IFNULL function. count_value as The functions nvl (Oracle, Db2), ...
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90
Cannot recognize hive type string null. Sometimes it's working ...
http://jatvbd.com/zs2ngly/cannot-recognize-hive-type-string-null.html
Why? hive> select case when (NULL=NULL) then "equals" else "not equals" end as ... However, in Db2 Big SQL the result from a SELECT with the same column ...
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http://jatvbd.com/zs2ngly/cannot-recognize-hive-type-string-null.html
Why? hive> select case when (NULL=NULL) then "equals" else "not equals" end as ... However, in Db2 Big SQL the result from a SELECT with the same column ...
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91
SQL Interview Questions CHEAT SHEET (2022) - InterviewBit
https://www.interviewbit.com/sql-interview-questions/
It must contain UNIQUE values and has an implicit NOT NULL constraint. ... A self JOIN is a case of regular join where a table is joined to itself based on ...
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https://www.interviewbit.com/sql-interview-questions/
It must contain UNIQUE values and has an implicit NOT NULL constraint. ... A self JOIN is a case of regular join where a table is joined to itself based on ...
→ Check Latest Keyword Rankings ←
92
DB2 Essentials: Understanding DB2 in a Big Data World
https://books.google.com/books?id=0Qu5AQAAQBAJ&pg=PA347&lpg=PA347&dq=db2+case+when+is+null&source=bl&ots=v7-uHX9aUA&sig=ACfU3U0Z8s9ZRzXoYfTnv4vanFAzj4pUgQ&hl=en&sa=X&ved=2ahUKEwiNhLfH9s77AhWak4kEHSocD5oQ6AF6BQjAAhAD
CREATE TABLE telephoneDirectory ( empID CHAR(3) NOT NULL PRIMARY KEY, phone_no VARCHAR(15) NOT NULL, ... In this case, however, DB2 cannot guarantee ...
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https://books.google.com/books?id=0Qu5AQAAQBAJ&pg=PA347&lpg=PA347&dq=db2+case+when+is+null&source=bl&ots=v7-uHX9aUA&sig=ACfU3U0Z8s9ZRzXoYfTnv4vanFAzj4pUgQ&hl=en&sa=X&ved=2ahUKEwiNhLfH9s77AhWak4kEHSocD5oQ6AF6BQjAAhAD
CREATE TABLE telephoneDirectory ( empID CHAR(3) NOT NULL PRIMARY KEY, phone_no VARCHAR(15) NOT NULL, ... In this case, however, DB2 cannot guarantee ...
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