This example creates an INVOKER authorization object with the name sales for the user name sam johnson and the user password tercesym, specifying AS INVOKER TRUSTED even though it is the default.
CREATE AUTHORIZATION sales AS INVOKER TRUSTED USER 'sam johnson' PASSWORD 'tercesym';
The system uses this OS platform user context to execute all external routines that contain an EXTERNAL SECURITY INVOKER clause when invoked by the database user that created this authorization.