Linq + Auto decrement on id when deleting a row

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I have a columns workid,appid,stepno in my table "Work_Table". Workid is primary key.
my table like this.

workid appid , stepno
1 1 1
2 1 2
3 1 3
4 2 1
5 2 2
6 2 3
7 2 4
9 2 5
10 3 1
11 3 2

Every appid has repeated stepno's. Well my problem is ,when i delete one stepno by using workid, the rest of stepno's should be auto decrement in that appid.

ex: if i delete workid- 5, then stepno's in that appid-2 would decrement like 1,2,3,4

I want to do this in by using linq.

Can anyone help me.

Posted 19-Dec-11 20:40pm

ganesh_kanc

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sriman.ch · Answer 1 · 2011-12-19T22:03:00

Solution 1

Hi,

Try the following

delete from your table name where workid=@workid and stepno=(select max(stepno) from test where workid=@workid)

Hope this helps....

Posted 19-Dec-11 22:03pm

sriman.ch

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ganesh_kanc 20-Dec-11 4:38am

Hi sriman ,
Thanks for the reply, but i want to do this in linq.

sriman.ch 20-Dec-11 23:13pm

Have a look on the following link

http://msdn.microsoft.com/en-us/library/bb386925.aspx