Click here to view and discuss this page in DocCommentXchange. In the future, you will be sent there automatically.
Row locks are used to prevent lost updates and other types of transaction inconsistencies by ensuring that any row modified by a transaction cannot be modified by another transaction until the first transaction completes, either by committing the changes by issuing an implicit or explicit COMMIT statement, or by aborting the changes via a ROLLBACK statement.
There are three classes of row locks: read (shared) locks, write (exclusive) locks, and intent locks. The database server acquires these locks automatically for each transaction.
|Send feedback about this page via email or DocCommentXchange||Copyright © 2008, iAnywhere Solutions, Inc. - SQL Anywhere 11.0.0|