Working with Transaction Rollbacks - Teradata Database

Teradata Database Administration

Product
Teradata Database
Release Number
16.10
Published
April 2018
Language
English (United States)
Last Update
2018-04-26
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Product Category
Software

A rollback is a reversal of an incomplete database transaction due to problems. A transaction may fail to complete and be aborted due to:

  • A deadlocked query
  • A database restart
  • An ABORT SESSION command

The rollback removes any partially completed database updates from the affected user tables. The system uses the TJ (dbc.transientjournal), which contains data about incomplete transactions, including a “before image” of each modified table row, to maintain data integrity.

Also see the rollback topics in Archiving, Restoring, and Recovering Data: Operational DBAs.