Question

I want to do a select that do a cast only for a specific ID but it doesn’t seems to work.

Example :

SELECT
  CASE
    WHEN(@ID <> 1) THEN Code
    WHEN(@ID = 1) THEN Cast(Code AS int)
  END Code FROM ....

Any Idea ?

Answer 1

It works for me. Check if the @id is of type int and if all values of column Code can be casted to int.

UPDATE If you have a value that can’t be casted to int, your query won’t work.

So you can write 2 different queries.

Smth like

IF @id = 1 THEN
 SELECT code ...
ELSE 
 SELECT Cast(Code AS int) as Code