Oracle if inserting or updating then freestate colored porn

19-Jul-2017 18:13

UPDATE Table1 SET (...) WHERE Column1='Some Value'IF @@ROWCOUNT=0 INSERT INTO Table1 VALUES (...) The saved table/index scan can increase performance quite a bit as the number of rows in the targeted table grows.

Just remember, the examples in the MSDN documentation are usually the easiest way to implement something, not necessarily the best way.

Also (as I re-learned recently), with any database operation, it is good to performance test the different approaches that you take.

Sometimes the method that you think would be the worst might actually outperform the way that you think would be the better way.

A trigger is a pl/sql block structure which is fired when a DML statements like Insert, Delete, Update is executed on a database table.

A trigger is triggered automatically when an associated DML statement is executed.

4)If you ROLLBACK the transaction before committing to the database, the data inserted to the table is also rolled back.

There are two types of triggers based on the which level it is triggered.

It is important to maintain the history of the prices of the products.

This is a pretty common situation that comes up when performing database operations.

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