Is it possible to select column based on the condition for dynamic queries. If condition is false, then it should not select that column. I want to write below as a dynamic query.
DECLARE @param varchar(10),
SELECT A,
IF (@param = 'U')
B = A-2, '
From Table tb
You may start with this:
-- Declarations
DECLARE
@param varchar(10),
@stm nvarchar(max),
@err int
-- Parameter value
SET @param = 'U' -- or another value
-- Statement
SET @stm = N'SELECT ColumnA'
IF (@param = 'U') SET @stm = @stm + N', ColumnB'
SET @stm = @stm + N' FROM YourTable'
-- Execution
EXEC @err = sp_executesql @stm
IF @err = 0 PRINT 'OK'
ELSE PRINT 'Error'