Answer / pavan

Drop will delete all the existing structure. if it applies
to a table, Truncate will delete only the data while
keeping the structure of the table as it is.

Answer / koti-khammam

TRUNCATE: Only data is deleted structure of the table
exists.


DROP: Both data and structure of the table gets removed.

Answer / mohsin mohammed abdul

Drop means removing the existing object from the database.
turncate means you are deleting the data from the table and
oracle implicitly issues commit statment and even when you
say rollback , you won't get the data back due to commit ..

Answer / lakshmi

Drop can be used to drop the entire table including data
and structure of table where as truncate removes rows from
table but the structure of table remains as it is.

Answer / mayur jain

Drop means removing.Removing the existence.

Truncate - there is no log maintained for the deleted
records.As when we perform delete a log is maintained a slow
process.

Answer / suman kalyan betal

DROP means it's drop the table(with rows,Pk_key, Fk_key and
indexces)from the database.
TRUNCATE do the same as DROP but maintain the Pk_key,
Fk_key and indexces declaration only remove rows.

---by suman kalyan betal (suman_kal@rediffmail.com)

Answer / ganesh mandlik

DROP :- DROP will Remove Structure as well as all the Data
of the Table.
i.e. Primary Key, Foreign Key, Indexes & etc...

Truncate :- Truncate will Remove only Data But not the
Structure of the Table.


Ganesh Mandlik......

Answer / vishant kakwani

drop is delete the data with table and if id is used as autoincrement then id can't be started with 1.
Truncate is delete the only data table as it is and autoincrement id will started with 1 every time if you truncate the table.

Answer / sripathi venkata ramesh

I am Sripathi Venkata Ramesh

Drop: Table structure + Data are deleted

Truncate: Data alone deleted but it is faster than delete.
Here we can not use where Condition here.

Delete: Data alone deleted. Here we can use where condition
here

Answer / vipin narwal

HI TO ALL!!!


DROP: will lead in deleting the structure of the table
along with all associated constraints like Primary
Key,Foreign Key,..etc and also deallocates the memory
allocated to the Database objects..

Truncate: Truncate like Delete deletes the data associated
with a Database Object but structure remains there i.e,
memory remains allocated,...but faster than Delete...

you added a row to a view, but the row is not shown on the view. Explain how this can happen, and how you can remedy the situation

0 Answers  

Describe and explain about SQL native client?

0 Answers  

What is a view? is View updatable?

17 Answers   IBM, L&T,

What is the difference between index seek vs. Index scan?

0 Answers  

If i have one transaction say mainTransaction, within this mainTransaction i have another two transaction say t1 and t2. Now while execution t1 completes successfully and commit statement fires, but while executing t2 some error occurs and rollback statement fires. What happen to t1, is it rollback or not?

1 Answers   Ness Technologies,

what is difference between primary key and Unique

8 Answers  

Consider the table T1 it consits A,2,3,4 consider another table t2 it contain 1,2a,3a,4a now i need o get the upadted answer

3 Answers  

What is difference in performance between insert top (n) into table and using top with insert?

0 Answers  

What samples and sample databases are provided by microsoft?

0 Answers  

What are extended events in sql server?

0 Answers  

Indexes are updated automatically is the full-text index also updated automatically?

0 Answers  

What are the types of dml?

0 Answers