Question

I’m trying to solve the following problem:

I would like to make a select, when the result is empty it should be replaced with ’empty’
Else the result should be there.
That is my try:

select case (count*) 
       when 0 then 'empty'
       ELSE
       THEVALUEOFTHECOLUM
END AS RESULT

from Database.table where CarID = 12;

Thanks for every comment.

Answer 1

This should work, but you might have to convert the second occurrence of COUNT(*) to VARCHAR depending on the database used:

SELECT
  CASE WHEN COUNT(*) = 0
    THEN 'empty'
    ELSE COUNT(*) -- CONVERT, TO_CHAR, ...
  END AS result
FROM Database.table where CarID = 12;