Answer / velmurugan

Drop - will Delete the table date as well as the table
structure.
Truncate - Will Delete the table data only. The table
structure will remains.

Answer / meena bisht

Drop: drop means it will drop the table including structure
and free the memory from hard disk.

Truncate: Truncate will truncate the data. The structure
will remain there and also will free the memory.

Answer / soumik

1.DELETE table will result into deletion of data from the
table without affecting the table structure. But since
delete statement is a DML(Data Manipulation Language)
statement, it directly dosnt reflect the database. In other
words, the deleted data will be stored in a separate
tablespace called UNDO tablespace(which takes up memory)
that can be retrieved by using a ROLLBACK statement.

2. DROP table results into loss of data and structure both
which cannot be retrieved. Drop statement is DDL(Data
Definition Language) which is AUTO-COMMIT.

3. TRUNCATE table will clear the data from the table only
without affecting the table structure. Data cannot be
retrieved after executing this statement as well, since it
an AUTO-COMMIT statement. Truncate is also a DDL statement.

Answer / ramavtar rajput

drop--> means table is delete ,not roll back,

truncate-->

Answer / ......v......

TRUNCATE <table_name>;
This will only Remove table data and not structure of table

DROP <table_name>;
This will Remove table data and structure both

In both the cases data can be Rollbacked in SQL Server 2000
or 2005.....,But NOT POSSIBLE in other.........!

Answer / guru

1.DELETE:
- delete space allocated by mysql server and the structure of table remains same.
- used by either 'WHERE' clause or without it in mysql.
- data can be roll backed
2.TRUNCATE:
- Remove rows from mysql table but the structure of table remains same.
- The data cannot be roll backed
- can be used by only without 'WHERE' clause in mysql.
3. DROP:
- Remove whole table from mysql database.
- The data cannot be roll backed

For more details visit: http://www.phponwebsites.com/2014/01/mysql-delete-truncate-drop-difference.html

Answer / shital

Delete - delete all the data from table but structure still remains as it is.
Truncate - delete all data from table but structure remains and memory still allocated for table.
Drop - delete all data as well as structure and also free the memory.

Answer / raabhu

Drop a Table : Delete over all table is called drop...

Truncate a table : Delete only the field names of table is
called truncate...

Answer / karthik

truncate means it will truncate the data, we can retrieve
it whenever we want using commit
drop - it delete the full structure as well as the data.
cant make a recovery.

Answer / sudha

Truncate Table - Truncate table is the combination of Drop
and Create. It [Truncate]can drop and recreate the table.
Delete - Delete will deletes all the data in the table and
structure of the table.

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