16.10 - Why Choose the Delete Task Option? - Parallel Transporter

Teradata Parallel Transporter Reference

Product
Parallel Transporter
Release Number
16.10
Published
July 2017
Content Type
Programming Reference
Publication ID
B035-2436-077K
Language
English (United States)

A simple SQL DELETE statement can usually accomplish the same result as the Delete Task option, but the Delete Task option is usually preferred because it requires fewer system resources, and therefore generally performs better than an SQL DELETE.

  • The Delete Task option does not use the Transient Journal so it uses less disk space, requires less I/O, and runs faster.
  • The Delete Task option aborts without rollback as opposed to the SQL DELETE, which uses the Transient Journal to roll back all changes. The Delete Task option only moves forward.