Explain how different lock working in select statement

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Explain me about different types of lock in single select statement

How to lock the table while operation like Read-Write

How Unlock the table After DML operation over.

What type of lock should be used on table to lock and unlock and where should be used.

Posted 7-Mar-13 20:08pm

Davidduraisamy

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2 solutions

Solution 1

The SELECT statement will not lock the Table.
To lock the table, use
BEGIN TRANSACTION

Then do any action you need to do on this table.

When you are done, use:
UPDATE
and
COMMIT

Posted 8-Mar-13 6:19am

Michael Haephrati

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gvprabu 8-Mar-13 23:19pm

How Select Statement will not lock the table...?

Davidduraisamy 8-Mar-13 23:46pm

Can you explain y lock will not work in select statement

Michael Haephrati 9-Mar-13 4:24am

I might be wrong here. From what I checked, this is the best method to use to gain full control over the table. There might be other ways...

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gvprabu · Accepted Answer · 2013-03-08T17:23:00

Solution 2

Hi
Check the following Links
Control SQL Server locking with hints[^]
Understanding the SQL Server NOLOCK hint[^]
Locking Hints[^]

Regards,
GVPrabu

Posted 8-Mar-13 17:23pm

gvprabu