When you use the DDL operator in a Teradata PT job, Teradata PT directs an instance of the DDL operator to:
- Log on to the database using your user name, password, database name, and account ID information specified in the job script.
- The operator terminates when scripts contain invalid or unsupported statements.
- Submit a request (this can be one statement or multiple statements) to the database and processes returned parcels from these statements.
- Issue, if an error occurs, an error message and terminate, unless the error is specified in the ErrorList attribute, in which case the DDL operator ignores the error and continues processing the job.
- Log off the database.
- Put out an end status indicating how many requests succeeded, failed, or were ignored.
- Resume, in the case of a restart, at the group that was being executed, but failed to complete, in the previous execution.