Difference between Delete,Truncate and drop

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Difference between Delete,Truncate and drop

vivekjamshedpur

Right there with Babe

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November 29, 2014 at 3:07 pm

#312810

Comments posted to this topic are about the item Difference between Delete,Truncate and drop
December 1, 2014 at 1:43 am

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Hany Helmy SSChampion Points: 13921 More actions · Answer 1

Good question, and good example of using rollback within a transaction.

Thanx.

Thanks & Best Regards,
Hany Helmy
SQL Server Database Consultant

bharatmehra76 SSC Enthusiast Points: 101 More actions · Answer 2

bharatmehra76

SSC Enthusiast

Points: 101

November 30, 2014 at 6:08 am

#1761543

Can you tell me reason behind this?

ksatpute123 Hall of Fame Points: 3325 More actions · Answer 3

bharatmehra76 (11/30/2014)
Can you tell me reason behind this?

You can start with this:

http://blog.sqlauthority.com/2007/12/26/sql-server-truncate-cant-be-rolled-back-using-log-files-after-transaction-session-is-closed/

http://www.sqlservercentral.com/Forums/Topic1488704-391-1.aspx

If you are a beginner then you need to understand how DELETE, DROP and TRUNCATE work instead of just focusing on their theoretical differences.

Koen Verbeeck SSC Guru Points: 259115 More actions · Answer 4

Good question, thanks.

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Umer Akram SSC-Insane Points: 22209 More actions · Answer 5

Nicely done, will help a lot of people especially newbies. Thanks for sharing

bharatmehra76 SSC Enthusiast Points: 101 More actions · Answer 6

thanks it helps to clear my doubts regarding truncate and delete operations 🙂

Michael_Garrison Hall of Fame Points: 3110 More actions · Answer 7

Michael_Garrison

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December 1, 2014 at 8:02 am

#1761735

Interesting question, learned something, thanks......

webrunner SSC-Dedicated Points: 31882 More actions · Answer 8

Great question, thanks!

- webrunner

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A SQL query walks into a bar and sees two tables. He walks up to them and asks, "Can I join you?"
Ref.: http://tkyte.blogspot.com/2009/02/sql-joke.html

webrunner SSC-Dedicated Points: 31882 More actions · Answer 9

ksatpute123 (12/1/2014)
bharatmehra76 (11/30/2014)
Can you tell me reason behind this?
You can start with this:
http://blog.sqlauthority.com/2007/12/26/sql-server-truncate-cant-be-rolled-back-using-log-files-after-transaction-session-is-closed/
http://www.sqlservercentral.com/Forums/Topic1488704-391-1.aspx
If you are a beginner then you need to understand how DELETE, DROP and TRUNCATE work instead of just focusing on their theoretical differences.

Thank you. I like to see a reference article in the answer and didn't see one for this question. Other than that, it was an excellent question submission.

- webrunner

-------------------
A SQL query walks into a bar and sees two tables. He walks up to them and asks, "Can I join you?"
Ref.: http://tkyte.blogspot.com/2009/02/sql-joke.html

Ed Wagner SSC Guru Points: 287026 More actions · Answer 10

Good question. Like another thread currently on the forum, it highlights the differences between DELETE and TRUNCATE in SQL Server and Oracle. Good question to start the week. Thanks.

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Brian Hibbert Ten Centuries Points: 1322 More actions · Answer 11

This appears to be a major difference between SQL Server and Oracle. Oracle cannot roll back DDL, only DML. SQL Server seems to be able to do both.

Great question. Got me researching....

farhat.ullah Grasshopper Points: 13 More actions · Answer 12

delete and truncate both delete data from table but the difference is that when we use delete then we have option to delete some specific records from table but truncate delete all records from table.drop delete structure of table.means drop remove table from database.

softsuresh_05 SSC Rookie Points: 36 More actions · Answer 13

softsuresh_05

SSC Rookie

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December 2, 2014 at 4:07 am

#1761993

Query 1 : 'abc'

Query 2 : 'abc'

Query 3 : 'abc'