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30/10/2018

Differentiate between ‘DELETE’, ‘TRUNCATE’ and ‘DROP’ commands.

Ans: After the ex*****on of ‘DELETE’ operation, COMMIT and ROLLBACK statements can be performed to retrieve the lost data.

After the ex*****on of ‘TRUNCATE’ operation, COMMIT, and ROLLBACK statements cannot be performed to retrieve the lost data.

‘DROP’ command is used to drop the table or key like the primary key/foreign key.

https://youtu.be/ZwVrQB0cq1E
09/12/2017

https://youtu.be/ZwVrQB0cq1E

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03/02/2015

Oracle plsql Training

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03/02/2015

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