Compare and contrast TRUNCATE and DELETE for a table.
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Answer / mkjmkumar
Delete :
1. It is a DML
2. Speed is Slow
3. We can Use Where Clause.
4. Check Constraints Before delete.
Truncate
1. It is a DDL.
2. Speed is Fast
3. We Cant Use Where Clause
4. Delete All Rows without check of constraints.
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / zikku
Truncate command permanently deletes the information from a
table even after rollback we can't get that information.
Delete command temporarily deletes information from a table
after rollback we can get the information back.
| Is This Answer Correct ? | 5 Yes | 0 No |
DELETE: IT IS A DML COMMAND(DATA MANIPULATION LANGUAGE) .
IT DELETES DATA MEANS (DELETES ALL RECORDS) IN TABLE.
BUT STRUCTURE WILL BE THERE.
AND
DATA DELETES TEMPERORLY.
THEN USE ROLLBACK WE CAN GET THE DATA.
TRUNCATE: IT IS A DDL COMMAND (DATA DEFNITION LANGUAGE).
TRUNCATE ALL RECORDS IN A TABLE.
BUT STRUCTURE WILL BE THERE.
BUT DATA GOES PERMINANTLY.
WE CANT USE ROLLBACK HERE.
IT SHOLUD NOT WORK. WHY BCZ DATA TRUNCATES
PERMENANTLY.
| Is This Answer Correct ? | 1 Yes | 0 No |
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