You can apply the Execute privilege on a user-defined routine (UDR) to authorize nonowners to execute the UDR. If you create a UDR in a database that is not ANSI compliant, the default routine-level privilege is PUBLIC; you do not need to grant the Execute privilege to specific users unless you have first revoked it. If you create a routine in an ANSI-compliant database, no other users have the Execute privilege by default; you must grant specific users the Execute privilege. The following example grants the Execute privilege to the user orion so that orion can use the UDR that is named read_address:
GRANT EXECUTE ON read_address TO orion;
The sysprocauth system catalog table records routine-level privileges. The sysprocauth system catalog table uses a primary key of the routine number, grantor, and grantee. In the procauth column, the execute privilege is indicated by a lowercase e. If the execute privilege was granted with the WITH GRANT option, the privilege is represented by an uppercase E.
For more information on routine-level privileges, see the IBM Informix: Guide to SQL Tutorial.
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