Progress
Database Administration
Guide and Reference
After-Imaging
The after-imaging feature lets you recover a database that was damaged when a failure caused the loss of the database or primary recovery (before image) area. When you enable after-imaging, the database engine writes notes containing a description of all database changes to the after-image (AI) files. You can use the AI files with the roll-forward recovery process to restore the database to the condition it was in before you lost the database, without losing completed transactions that occurred since the last backup. "Recovering a Database," explains recovery mechanisms for Version 9 Progress databases, including after-imaging. This chapter details how to use after-imaging and contains the following sections:
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