SQL SP: How to return one inactive record along with active records I am working on this peculiar sql stored proc where the business case is as follows:

Business Case:
Table Specialties contains all the Specialties and there is a bit field for each record telling if it's Active or Inactive. We always display only the active records from that table in form of dropdown. Users may select a Specialty which can later on be deactivated. New requirement is to be able to pull that Inactive record along with all the active records in the result set. 

Here's how I thought I should do this:
If no specialty is assigned to the person I am pulling up then the dropdown is going to be populated by all active records.
If there is a inactive specialty associated with the person I am pulling up then I send that specialtyID in stored proc as a parameter and return that inactive records along with active records to populate the dropdown. 

Below is what I got so far:
So far if I dont pass in any specialtyId then I am returning active specialty records which is working. When I send in a specialtyId  parameter then it just returns that one inactive record but not rest of the other active records. I need the rest of the active records too along with that one inactive record.

   DECLARE  @specialtyId  INT = null;
  BEGIN
    IF isnull(@specialtyId,'')=''
      BEGIN
        SELECT SpecialtyID AS Id, Specialty AS Name
          FROM dbo.Specialties
         WHERE IsActive = 1
         ORDER BY Specialty;
      END
    ELSE 
      BEGIN
        SET @specialtyId = @specialtyId ;

        SELECT s.SpecialtyID AS Id, s.Specialty AS Name
          FROM dbo.Specialties s
         WHERE specialtyId = @specialtyId
         GROUP BY s.Specialty, s.SpecialtyID
         HAVING (Specialty IS NOT NULL)
            AND (max(SpecialtyID) IS NOT NULL)
         ORDER BY Name;
      END
  END
It looks to me like a simple WHERE IsActive = 1 OR specialtyId = @specialtyId should work.