If an SQL statement contains host variables, you are prompted to substitute a value of the appropriate type for each host variable.
To run an SQL statement:
If you have a connection to a database in this product and that connection is cancelled in some way from outside the workbench (for example, in DB2® by using the "force applications all" command), the fact that the connection has been dropped cannot be detected.
Some tasks that you perform depend on an active connection to your database. Any task that requires an active connection to the database (such as running an SQL statement in the SQL Query Builder) does not work properly if the connection is dropped. To work around this problem, you must reconnect to the database.