You can use the BEGIN LOGGING statement to start access logging. BEGIN LOGGING statements have the following results:
- Each BEGIN LOGGING statement creates a logging rule, in the form of an entry in the DBC.AccLogRule table.
- Each time a user request matches one of the logging rules found in the DBC.AccLogRuleTbl, the macro creates an entry in the DBC.AccLogTbl.
The basic form of the BEGIN LOGGING statement is:
BEGIN LOGGING ON [frequency] [operation] BY username ON object_name ;
where:
| The Syntax Element... | Specifies the... |
|---|---|
| frequency | frequency with which logging of an event takes place during a session: FIRST, LAST, FIRST AND LAST, or EACH. |
| operation | action or list of actions which, if present in a user request, triggers logging. |
| username | name of the user (or users) for which the system logs requests. |
| object_name | name of a database object which, if present in a user request, triggers logging. |
BEGIN LOGGING parameters are optional. The absence of some parameters causes the system to use default values.
For a detailed description of BEGIN LOGGING syntax and options, see Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.