what is exact difference between drop and truncate table.

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what is exact difference between drop and truncate table...

Answer / sowjanya

Drop Statement deletes the Table structure from the database.
Truncate statement will delete the entire data from Table
and keeps the Table structure as it is in the DB.

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what is exact difference between drop and truncate table...

Answer / samad

ya its correct sowjanya

DROP - delete objects from the database
TRUNCATE - remove all records from a table, including all
spaces allocated for the records are removed in this
rollback is not possible

DELETE - deletes all records from a table, the space for the
records remain rollback is possible

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what is exact difference between drop and truncate table...

Answer / chandana

Drop :
1.Deletes the entire table records as well as the table
structure.
2.It is a DDL Command.
3. Logs are not maintained.
4. Auto Commited.
5.Where clause cannot be used in the Drop statement.Synatx:
Drop table <Table_Name>

Trunctae:
1. Deletes the entire table records ,retains the table
structure.
2. Its a DDL Command.
3. Logs are not maintained. So faster in performace than
Delete.
4. Auto Commited.
Cannot be Rolled Back.
5.Where clause cannot be used with truncate statement.
Truncate Table <Table_Name>;

Delete:

1. Deletes the table records based on condtions ,retains
the table structure.
2. Its a DML Command.
3. Logs are maintained.So slower than trucate.
4. No Auto Commited.So can be Rolled Back.
5.Where clause can be used with truncate statement.
Syantx:
Delete from <Table_Name> where <Condition>;

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