See Executing a Function Mapping and Examples: Table Operator Function Mapping.
- database_name.
- user_name.
- Optionally, you can specify the containing database or user. If you do not specify the database_name or user_name, the database or user defaults to one of the following, in order of precedence:
- Current default database for the session
- SYSLIB
- TD_SYSFNLIB
- function_mapping_name
- Function mapping name.