sql server - Assign non identity sequence to field based on another column on multiple row insert -

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i have sql table in sql server 2008 purpose includes patient_id (primary), custno (char), recip_id (int)

1 - c01731 -    1   2 - c01731 -    2   3 - c01731 -    3   4 - c01732 -    1   5 - c01732 -    2   6 - c01732 -    3   7 - c01732 -    4   8 - c01733 -    1   9 - c01733 -    2

so when need insert single record use stored procedure...

create procedure [dbo].[jr_sp_nw_insertrecord]   (       @custno varchar(max),       @modwho varchar(max)   )     begin       set nocount on;   --declare @retval int   declare @rownum int    set @rownum = (select max(recip_id)+1 usersmailingdata custno = @custno)        insert dbo.usersmailingdata(custno,recip_id,modify, modifywho)     values(@custno, @rownum, getdate(), @modwho)        select cast(scope_identity() int)   end

my problem need stored procedure @ highest number in column recip_id based on @custno , on insert of multiple rows increment number 1 each row inserted. recip_id can have gaps when records deleted not issue.

i assume problem you're inserting rows select statement, in case can use row_number() assign number rows, this:

insert dbo.usersmailingdata(custno,recip_id,...) select @custno, row_number() on (order colname) + @rownum ... tablename

the colname column in order want numbers calculated new rows.

your @rownum fetch has bug, doesn't work when there no rows customer.


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