An Introduction to the Progress Database - Radius
An Introduction to the Progress Database - Radius
An Introduction to the Progress Database - Radius
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<strong>Database</strong> Transaction Logs<br />
BI<br />
Undo-Redo Log<br />
(Before-Image Log)<br />
Recorded Changes<br />
Original<br />
<strong>Database</strong><br />
db<br />
Transactions<br />
make changes<br />
db’<br />
Updated<br />
<strong>Database</strong><br />
AI<br />
Redo-Log<br />
(After-Image Journals)<br />
Recorded Changes<br />
12<br />
© 2007 <strong>Progress</strong> Software Corporation
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