What is the difference between truncate and delete statement?
Answers were Sorted based on User's Feedback
Answer / valarmathi
truncate delete all records from the table and it is auto
commit. We can't able to rollback the data after performing
truncate operation.
delete statement delete the specific or all records from
the table. But we can able to rollback the deleted record
Is This Answer Correct ? | 8 Yes | 1 No |
Answer / rajiv singh
Truncate deletes all rows from table. But Delete deletes
row/rows by condition.
Is This Answer Correct ? | 5 Yes | 0 No |
Answer / sreejith s t
Both Truncate and delete deletes the rows from a table .
But we cant use where clause in truncate statement . While
doing delete operation all the deleted rows are logged in
the transaction log . It reduces the perfomance . In
truncate operation no transaction logging is happening .
Delete is Autocommited but Truncate is Not .
Is This Answer Correct ? | 6 Yes | 2 No |
Answer / ismail hasan
truncate deletes records from a table and while truncating a
table, the table will be dropped from the database and will
again be created automatically. No where clause is
acceptable in truncate statement and one can't restore the
previous data (i.e no rollback is possible) into the table.
It's an efficient process.
Delete statement will delete a particular row(s) on your
choice.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / vasu
Both Truncate and delete deletes the rows from a table .
But we cant use where clause in truncate statement . While
doing delete operation all the deleted rows are logged in
the transaction log . It reduces the perfomance . In
truncate operation no transaction logging is happening .
Delete is Autocommited but Truncate is Not .
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / balaji t
Identity counter can be reset in truncate whereas it is not possible in delete.Truncate dont activate trigger whereas delete can be used in triggers.truncate is a DDL command whereas delete is a DML command.
Is This Answer Correct ? | 0 Yes | 0 No |
Describe about first three Normal forms.
Is foreign key unique?
What is the difference between lock, block and deadlock? : sql server database administration
What is normalization and denormalization in sql server?
What will you do If the low Performance occurs?
what is hash table
Once setting replication, can you have distributor on sql server 2005, publisher of sql server 2008?
Tell me in brief how sql server enhances scalability of the database system?
How do I start sql server agent automatically?
Explain error handling in ssis?
Explain SELF JOIN ?
What is standby servers? Explain types of standby servers.