Question: When do changes generated by DML operations become stored in database tables permanently? If you add a record to the wrong table, what s the

When do changes generated by DML operations become stored in database tables permanently?
If you add a record to the wrong table, whats the simplest way to remove the record from the table?
What happens if a user attempts to add data to a table, and the addition would cause the record to violate an enabled constraint?

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