Research and application of Oracle database trigger technology
Oracle trigger is a special stored procedure in the database table.In order to operate on the security,consistency and data integrity of the relevant data in the database table,the trigger is defined.The execution process of a trigger is triggered by specific events.This article designs a skip block trigger,automatic increase of serial number,and synchronization of batch data.Tests have shown that the above trigger can ensure the synchronization of user data.Before the user updates the specified database of the target database,the database system will automatically start the trigger to ensure that the data can be restored to the normal state when errors occur in the batch update of data tables.
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