what is the difference between delete and truncate?
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Answer Posted / kadambari
Difference between Delete and Truncate :-
1. Truncate is a DDL statement hence it implicitly commits;
Delete is a DML statement hence we have to manually perform
commit.
2. Truncate doesn't fire the delete trigger hence it is
faster than Delete operation.
3. Once Truncated, data cannot be roll-backed; Delete
operation can be roll-backed.
4. Truncate resets the High water mark and frees up all the
extents; Delete doesn't reset the High water mark.
Thanks
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