Posted by David Portas on 02/06/06 21:55

Jeff Kish wrote:

> thanks. I'm still not sure of how to do something here, though.
>
> This is directly related to the problem but re-worded because I need to
> get the next value using max(authorizationid)+1 ...
>
> Given two tables:
> allgroups(usergroup, otherdata) =
> {'group1',otherdata1,
> 'group2',otherdata2,
> 'group3',otherdata3,
> :
> :
> 'groupn',otherdatan}
>
> and
> authorization(program,optiontitle,
> usergroup,authorizationid) =
> {'pro1','title1','ug1',3,
> 'pro2','title2','ug2',4,
> :
> 'pron','titlen','ugn',m}
>
> How can I insert multiple
> lines (one for each usergroup
> in allgroups) using one sql statement
> into authorization if this is correct for a
> single insert:
> insert into authorization(program,
> optiontitle,usergroup,
> authorizationid)
> select 'proq','titleq','ug1',
> max(authorizationid)+1
> from authorization
>
> bascially I'd like each usergroup
> from allgroups to be used to create a
> new line in authorization, having
> the authorizationid increment one from
> the current max.
>
> Yes, I have no control over the design/use of
> an identity column.
>
> Is it possible?
> Thanks
> Jeff Kish

Assuming SQL Server 2005 (you didn't specify otherwise), use the
ROW_NUMBER function. For example:

INSERT INTO [authorization]
(program, optiontitle, usergroup, authorizationid)
SELECT program, optiontitle, usergroup,
authorizationid+
(SELECT MAX(authorizationid)
FROM [authorization])
FROM
(SELECT 'proq','titleq', usergroup, ROW_NUMBER()
OVER (ORDER BY usergroup)
FROM allgroups)
AS T(program, optiontitle, usergroup, authorizationid) ;

--
David Portas, SQL Server MVP

Whenever possible please post enough code to reproduce your problem.
Including CREATE TABLE and INSERT statements usually helps.
State what version of SQL Server you are using and specify the content
of any error messages.

SQL Server Books Online:
http://msdn2.microsoft.com/library/ms130214(en-US,SQL.90).aspx
--

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