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Justify Write-Ahead Logging (WAL) protocol for a recovery algorithm that requires both UNDO & REDO.
written 8.9 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.8 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

Mumbai University > Information Technology > Sem 5 > Advanced Database Management System

Marks: 5M

Year: Dec 2015
advanced database management systems
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written 8.9 years ago by gravatar for teamques10 teamques10 ★ 70k

Every recovery procedure involves flusing its logs store in data buffers into the disk. In place updating & showing in place updating writes the data items that are updated at the same location in the disk every time by overwriting the content whereas shadowing places the logs records at different …

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