June 1999
Intermediate to advanced
1368 pages
29h 45m
English
Content preview from F. Scott Barker's Microsoft® Access 2000 Power ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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INCREASING SPEED WITH TRANSACTIONS
In the CopyData subroutine in Listing 5.10, notice the wspTransact.BeginTrans line. Access supports transactions, which, in some cases, greatly increase the speed of modifying and updating data. By using a transaction, you can group a large number of updates into a single operation.
However, transactions are more than just faster updates. By using transactions, you can modify one or many tables. At any point during the update, you can decide to cancel, or roll back, the transaction. Rolling back a transaction causes no updates to be saved to your database.
Note
If you plan to use transactions for performance purposes, be sure to run benchmarks with and without the transaction commands. In prior versions of Jet ...
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