Interested to Buy Any Domain ? << Click Here >> for more details...
what is difference between delete and truncet ?
- 7 Answers
- 11991 Views
- Fidelity, I also Faced
- E-Mail Answers
Answer Posted / shivaleela
DELETE:-
1.it is a DML stmt
2.it can include WHERE condition
3.it is only delete, so it can be rolled back can be ROLL
BACK
TRUNCATE:-
1.it is a DDL stmt
2.it can not include WHERE cnd
3.it is delete+commit ,so we cant roll back can not be ROLL
BACK
Both commands accomplish identical tasks (removing all data
from a table), but TRUNCATE is much faster
Reason:When you type DELETE.all the data get copied into
the Rollback Tablespace first.then delete operation get
performed.Thatswhy when you type ROLLBACK after deleting a
table ,you can get back the data(The system get it for you
from the Rollback Tablespace).All this process take
time.But when you type TRUNCATE,it removes data directly
without copying it into the Rollback Tablespace.Thatswhy
TRUNCATE is faster.Once you Truncate you cann't get back
the data.
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
What is the role of driver manager?
When should you not use firebase?
What the various ways to tune a teradata query
Explain buffer manager?
How do you connect to a database?
What is odm in database?
what is transaction state, buffer management, shadow paging
1. How to test Database? Please, give me all details for "SQL,Msaccess, Mysql Database? 2.For which functionalities database used? 3.How to convert Guest to Admin by Mysql database?
What are indexes in oracle?
What is a database call?
What is ase database?
Explain artificial key?
Differentiate between delete and truncate table?
What are different types of resources?
Explain database partitioning. What is its importance?
