Trigger updating inserting
A trigger is triggered automatically when an associated DML statement is executed.
1) Create the 'product' table and 'product_price_history' table Once the above update query is executed, the trigger fires and updates the 'product_price_history' table.
4)If you ROLLBACK the transaction before committing to the database, the data inserted to the table is also rolled back.
In such a situation, when there is a row inserted in table 'abc', trigger A fires and will update table 'xyz'.
When the table 'xyz' is updated, trigger B fires and will insert a row in table 'abc'.
2) Statement level trigger - An event is triggered for each sql statement executed.
The following hierarchy is followed when a trigger is fired. 2) Next BEFORE row level trigger fires, once for each row affected.
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4) Finally the AFTER statement level trigger fires.Tags: Adult Dating, affair dating, sex dating