To permanently lock a user account, you must assign a login policy with the locked option set to ON to the account. Once disabled, a user cannot connect to the SAP Sybase IQ server.
This command creates a new login policy named lp_locked_users with the LOCKED option set to ON:
CREATE LOGIN POLICY lp_locked_users locked=ON
These commands assign the lp_locked_users login policy to users John and Mary. John and Mary can no longer log in.
ALTER USER john LOGIN POLICY lp_locked_users ALTER USER Mary LOGIN POLICY lp_locked_users