How do I reset the Identity field back to 1 after deletion of the data from database?

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SQL-Server-2008

I Wanted to set the Identity field back to 1 not affecting the database schema.
Any suggestion .
Please comment ...
Thanks In advance ....

Posted 17-Feb-14 23:31pm

Ni!E$H_WAGH

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3 solutions

Solution 2

The only way to reset an identy field is to commit a TRUNCATE command on the table (but beware! this will clear all the records in the table as well).
But it will not be allowed if this identity column is used as a foreign key in another table; so you have to drop every foreign key relation based on this primary column first.

Why do you care about the values of your identity fields? Technically, you should not, unless you are getting short on new id's. An identity field is technically something managed by your database engine; trying to interact with it is at least a loss of time, at most a nonsense.

Posted 17-Feb-14 23:43pm

phil.o

Updated 17-Feb-14 23:44pm

v2

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santosh1989 · Accepted Answer · 2014-02-17T23:48:00

Solution 3

SQL

DBCC CHECKIDENT('[table_name]', RESEED, [new_reseed_value])
-- for example
DBCC CHECKIDENT('tblUserMaster', RESEED, 0)

Posted 17-Feb-14 23:48pm

santosh1989

hypermellow · Accepted Answer · 2014-02-17T23:41:00

Solution 1

This query will reset you Identity field back to 0, so that the 1st value entered into the table will have an identity value of 1.

... hope it helps

SQL

DBCC CHECKIDENT (your_table_name, RESEED, 0)

Posted 17-Feb-14 23:41pm

hypermellow

v2