How to set Identity column through query
How to set Identity column through query.How ro set identity explicitly |IDENTITY_INSERT|
Table Scripts:
---How to set Identity column through query
--Identity column of a table is a column whose value increases automatically.(Auto increment)
--the value in an identity column is created by the Sql server.
-- no need to pass the value of identity column values for insertion.
--Syntax identity(seed value,increment value)
--eg identity(1,1)
create Table customer
(
CustomerId int identity(1,1),
Name varchar(100)
)
insert into customer values('Biju')
insert into customer values('Sara')
select * from customer
sp_help customer
--drop table customer
--Explicitly insert identity value need to set IDENTITY_INSERT of table to on
set IDENTITY_INSERT customer on
insert into customer(CustomerId,name) values(3,'Mary')
insert into customer(CustomerId,name) values(4,'Kumar')
set IDENTITY_INSERT customer off
--Reset Identity column values
--identity column not reset
delete from customer
--reset the identity value
dbcc checkident(customer,reseed,0)
--reset the identity value
truncate table customer
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