Return data of multiple select statements from a stored procedure

Question

We have an internal team who runs some queries on database every month to generate some reports. And queries remains same every time except varying date range. So I just want to automate this thing for them & to do so I need to write a stored procedure that can return data from multiple tables. Below is a small glimpse of what I am trying to do.

CREATE PROCEDURE TestProc
    @StartDate datetime,
    @EndDate datetime
AS
BEGIN    
    SELECT * 
    FROM abc 
    WHERE date BETWEEN @startdate AND @enddate

    SELECT * 
    FROM xyz 
    WHERE date < @enddate

    SELECT * 
    FROM def 
    WHERE date > @startdate    
END

So basically I want data of above three queries to be returned to my calling application through TestProc stored procedure. Is it possible to return multiple tables from a stored procedure?

If yes, then how & if not then is there any alternate option that I can use to meet my requirements?

Answer 1

Ideally I would write 3 separate procs to get data from 3 table but for some reason if you want 1 proc to do it all you can do something like:

Create procedure TestProc
  @StartDate    DATETIME = NULL,
  @EndDate      DATETIME = NULL,
  @ResultSet    VARCHAR(3)
AS
BEGIN    
    IF (@ResultSet = 'abc')
     BEGIN
        SELECT * from abc where date between @startdate and @enddate
     END
    ELSE IF (@ResultSet = 'xyz')
     BEGIN
        SELECT * from xyz where date <@enddate
     END
    ELSE IF (@ResultSet = 'def')
     BEGIN
        SELECT * from def where date > @startdate 
     END
    ELSE 
     BEGIN
        RAISERROR('Please pass a valid value to param @ResultSet, valid values are abc , xyz or def' , 16 ,1);
     END   
END

And call the proc 3 times with different @ResultSet values to get the desired result set on each call.

Answer 2

As I remember

    Create procedure TestProc
      @StartDate datetime,
      @EndDate datetime
    AS
    BEGIN    
      select * from abc where date between @startdate and @enddate;
      go;
      select * from xyz where date <@enddate;
      go;
      select * from def where date > @startdate;
      go;    
    END

And you use a SqlDataAdapter to fill a DataSet