SQL Variables as Column names in Where Clause [duplicate]

Answer 1

You can use some dynamic sql e.g.

DECLARE @sqlDept VARCHAR(100)='CURRENT_TIMESTAMP';

EXEC('SELECT '+@sqlDept)

In your case this will be

DECLARE @strDept nvarchar(10)='dept1'
,@strUser nvarchar(30)='user1';

DECLARE @DynamicSql nvarchar(1000);

SET @DynamicSql='select x, y, z from table where '+@strDept+' in ('''+@strUser+''')';

Then

SELECT @DynamicSql;

Will give you:

select x, y, z from table where dept1 in ('user1')

To execute this statement you do this as

EXEC(@DynamicSql);