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- Is there a function which the opposite of NULLIF?
NULLIF(expr1, NULLIF(expr1, expr2)) does what you want CASE expr1 WHEN expr2 THEN expr1 END This is the simplest answer I could think of Maybe you could add an example of how exactly to construct the statement to return when and don't match? What about when each value being passed into the is ?
- Is there a opposite function to ISNULL in sql server? To do Is not null . . .
Use the fact that a string + 'something' will be NULL if string is NULL, and if that is null then use ISNULL to return 'somethingelse', get end of the returned value with RIGHT () and check that against 'something' using NULLIF, and then use COALESCE to do what you'd like to do if that is NULL (meaning original value is not null)
- ISNULL (Transact-SQL) - SQL Server | Microsoft Learn
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric Replaces NULL with the specified replacement value Transact-SQL syntax conventions
- SQL SERVER – Explanation and Comparison of NULLIF and ISNULL
Syntax: NULLIF ( expression , expression ) Returns a null value if the two specified expressions are equal NULLIF returns the first expression if the two expressions are not equal If the expressions are equal, NULLIF returns a null value of the type of the first expression
- Contrary of ISNULL () ? – SQLServerCentral Forums
If the field is NOT null, it will display no? Most systems will display a NULL as a blank and don't require a conversion to a blank or empty string You'll save clock cycles in the process
- Difference Between NullIf () and IfNull () in SQLite
nullif() allows you to treat certain values as NULL You can think of it as “return NULL if …” ifnull() allows you to replace NULL values with another value You can think of it as “if NULL, then …” So they basically do the opposite of each other One replaces NULL values with another value, and the other replaces another value with NULL
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