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Different types of Trigger - Mysql
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Tagged in : Mysql
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Different types of Trigger
A trigger in MySQL is a database object that is associated with a table. A trigger is fired, when a particular event occurs for the table. Triggers are used to perform validation checks on data values for insertion or to perform calculations on values for updatation.
They are 2 types of triggers – Before Trigger and After Trigger. Before Trigger fires before the execution of INSERT, DELETE and UPDATE commands. After trigger fires after the execution of INSERT, DELETE and UPDATE commands. |
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By Geethalakshmi, On - 2010-09-29 |
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