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SQL Server  IIF() Function

❮ SQL Server Functions

Example

Return "YES" if the condition is TRUE, or "NO" if the condition is FALSE:

SELECT IIF(500<1000, 'YES', 'NO');
Try it Yourself »

Definition and Usage

The IIF() function returns a value if a condition is TRUE, or another value if a condition is FALSE.

Syntax

IIF(condition, value_if_true, value_if_false)

Parameter Values

Parameter Description
condition Required. The value to test
value_if_true Optional. The value to return if condition is TRUE
value_if_false Optional. The value to return if condition is FALSE

Technical Details

Works in: SQL Server (starting with 2012), Azure SQL Database

More Examples

Example

Return 5 if the condition is TRUE, or 10 if the condition is FALSE:

SELECT IIF(500<1000, 5, 10);
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Example

Test whether two strings are the same and return "YES" if they are, or "NO" if not:

SELECT IIF(STRCMP("hello","bye") = 0, 'YES', 'NO');
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Example

Return "MORE" if the condition is TRUE, or "LESS" if the condition is FALSE:

SELECT OrderID, Quantity, IIF(Quantity>10, 'MORE', 'LESS')
FROM OrderDetails;
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❮ SQL Server Functions