Question

How do I write an IF statement with multiple arguments in T-SQL?

Current source error:

DECLARE @StartDate AS DATETIME
DECLARE @EndDate AS DATETIME

SET @StartDate = NULL
SET @EndDate = NULL

IF (@StartDate IS NOT NULL AND @EndDate IS NOT NULL) 
    BEGIN
        -- do some work
    END

It throws the following error:

Incorrect syntax near the keyword
‘AND’. Incorrect syntax near the
keyword ‘AND’. Incorrect syntax near
‘)’.

Answer 1

You are doing it right. The empty code block is what is causing your issue. It’s not the condition structure 🙂

DECLARE @StartDate AS DATETIME

DECLARE @EndDate AS DATETIME

SET @StartDate = NULL
SET @EndDate = NULL

IF (@StartDate IS NOT NULL AND @EndDate IS NOT NULL) 
    BEGIN
        print 'yoyoyo'
    END

IF (@StartDate IS NULL AND @EndDate IS NULL AND 1=1 AND 2=2) 
    BEGIN
        print 'Oh hey there'
    END