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Background documentation Redo Log Entry Locate the document in its SAP Library structure

Redoing (rolling forward) a Structure linktransaction means that the modifications of a successful transaction are repeated, that is to say, the database is set to the consistent state that it had after the transaction had ended. The redo measure means that additional, redundant data management is required.

For each transaction, the values of the changed objects are therefore recorded. These logged values are described as redo log entries (or after-image entries).

Redo log entries do not need to be saved permanently in the Structure linklog area until the  Structure linkCOMMIT is executed for the transaction  (Redo Log Management).

The redo log entries are also required for the redo when the database system is restarted or recovered.

See also: Undo log entry

 

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