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| Ans. When a DML is executed, the changes only stays in session and still not pushed to DB Tables, Commit is used to push those changes to the Tables. In case we realize that we don't want to commit those changes and would like to ignore them, we can use rollback. For example - You may like that for a banking transaction you would like to update the account balance only if the debit or credit record was correctly inserted, so you may like to encapsulate both DML's - insert for transaction and update for balance in a single transaction and would only commit if both succeeds else rollback. | ||||
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 Discuss Correct / Improve  databases commit rollback  Asked in 2 Companies  Basic | ||||
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