I want a SELECT statement that creates a new column where if a field called "string" ends with the letter A, B, or F it gets the value "Ok" otherwise it gets the value "No".
I know I need to do some substring but cannot get it right.
Use RIGHT
:
SELECT Result = CASE WHEN RIGHT(string, 1) IN ('A','B','F')
THEN 'Ok' ELSE 'No' END