This statement closes the Interactive SQL window if you are running Interactive SQL as a windowed program, or terminates Interactive
SQL altogether when running in command-prompt (batch) mode. In both cases, the database connection is also closed. Before
closing the database connection, Interactive SQL automatically executes a COMMIT statement if the commit_on_exit option is
set to On. If this option is set to Off, Interactive SQL performs an implicit ROLLBACK. By default, the commit_on_exit option
is set to On.
The optional return code can be checked in batch files to determine the success or failure of the statements in an Interactive
SQL script file. The default return code is 0.