SSRS: Use NOT LIKE in parameter expression

Question

I have a report that uses 3 parameters:

• @startDate
• @endDate
• @Brand

The @startDate and @endDate parameters are working as expected. @Brand is displayed as a dropdown menu with two options: B and P

When the user selects B the results returned must match the filter: LIKE ”%.%” When the user selects P the results returned must match the filter: NOT LIKE “%.%”

I am not sure how to make this filter work for P.

Answer 1

I was searching for an answer for this exact problem and I could not find. I am posting here though because I have discovered how to do it. Btw * is wildcard in SSRS

Your expression for a normal LIKE statement

=iif(variable LIKE "*.*", True, False)

Your NOT LIKE expression

=iif(NOT(variable LIKE "*.*"), False, True))

Answer 2

The easiest (and least elegant) option is just to have an IF statement in your SQL:

IF @Brand 'B' THEN
   SELECT * FROM Table WHERE Filter LIKE '%.%'
ELSE
   SELECT * FROM Table WHERE Filter NOT LIKE '%.%'