sql server 2008 r2 - how to update an identity column values -


this question has answer here:

id  employeename    address phoneno emailid dob doj designation department  craeteddate 2   sabarish    saidapet    9600387983  sabari@gmail.com    -1973   -2012   ase software    2013-05-15 17:07:43.223 10  karthik chrompet    9865028330  karthik@gmail.com   -1968   -2008   softwareengineeer   software    2013-05-15 15:40:41.613 15  sabarish    saidapet    9600387983  sabari@gmail.com    -1973   -2012   ase software    2013-05-15 17:07:12.003

in above table id column identity column , want id values 1,2,3, instead of 2,10,15 how this?

try 1 -

query:

if object_id (n'dbo.test') not null    drop table dbo.test  create table dbo.test (       id int not null identity(1,1) primary key     , employeename varchar(50) not null )  set identity_insert dbo.test on  insert dbo.test  (       id     , employeename ) values      (2, 'sabarish saidapet'),      (10, 'karthik chrompet'),      (15, 'sabarish saidapet')  set identity_insert dbo.test off  set identity_insert dbo.test on  declare @temp table (         id int not null       , employeename varchar(50) not null )  insert @temp (employeename, id) select        t.employeename      , row_number() on (order (select 1)) dbo.test t  truncate table dbo.test --delete dbo.test  insert dbo.test (id, employeename) select id, employeename @temp  set identity_insert dbo.test off  insert dbo.test (employeename) values ('test 4')  select *  dbo.test t

output:

id          employeename ----------- -------------------------------------------------- 1           sabarish saidapet 2           karthik chrompet 3           sabarish saidapet 4           test 4

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