Teradata Parallel Data Pump

Chapter 3: Teradata TPump Commands
EXECUTE
For example:
.DML LABEL DO INSERT FOR MISSING UPDATE ROWS ... ;
EXECUTE UPDATE ;
INSERT ;
.DML LABEL DO INSERT FOR MISSING UPDATE ROWS ... ;
UPDATE ;
EXECUTE INSERT ;
.DML LABEL DO INSERT FOR MISSING UPDATE ROWS ... ;
EXECUTE UPDATE ;
EXECUTE INSERT ;
To allow for the use of predefined macros that take advantage of Atomic upsert, Teradata
TPump command syntax supports an UPSERT macro:
.DML LABEL ;
EXECUTE UPSERT ;
When using predefined macros for atomic upserts, the DML statement will have “Ignore
Missing Update Rows” as a default option.
Atomic upsert syntax is not backward compatible; thus it cannot be used until the Teradata
Database server is updated to a compatible release. If Teradata Database supports Atomic
upsert, a Teradata TPump run can handle a mix of both standard and Atomic upserts.
Upserts are reported as UPDATEs and INSERTs in the statistics displayed by Teradata TPump
(and passed to the NOTIFY EXIT routine), because an Atomic upsert that results in an
UPDATE will be reported by Teradata Database as an UPDATE activity type, and an Atomic
upsert that results in an INSERT will be reported by Teradata Database as an INSERT activity
type.
132 Teradata Parallel Data Pump Reference