Before Interactive SQL can return multiple result sets, you need to enable this option on the Results tab of the Options window. By default, this option is disabled. If you change the setting, it takes effect in newly created connections (such as new windows).

 To enable multiple result set functionality (Interactive SQL)

 To enable multiple result set functionality (SQL)

After you enable this option, a procedure can return more than one result set to the calling environment. If a RESULT clause is employed, the result sets must be compatible: they must have the same number of items in the SELECT lists, and the data types must all be of types that can be automatically converted to the data types listed in the RESULT list.

 Example

CREATE PROCEDURE ListPeople()
RESULT ( Surname CHAR(36), GivenName CHAR(36) )
BEGIN
   SELECT Surname, GivenName
   FROM Employees;
   SELECT Surname, GivenName
   FROM Customers;
   SELECT Surname, GivenName
   FROM Contacts;
END;

CALL ListPeople ();