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sno help in sql 2000

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Topic

gfaryd
Starting Member

27 Posts

Posted - 2011-07-18 : 12:14:20

dear all
i have following table

create table test (id int, batch varchar(5))

insert into test values (1,abc)
insert into test values (1,abc)
insert into test values (2,abc)
insert into test values (2,abc)
insert into test values (3,abc)
insert into test values (1,xyz)
insert into test values (1,xyz)
insert into test values (2,xyz)
insert into test values (2,xyz)
insert into test values (3,xyz)
insert into test values (1,pqr)
insert into test values (2,pqr)
insert into test values (2,pqr)

i want to assign sno to this data on following criteria

sno id batch
1 1 abc
2 1 abc
3 2 abc
4 2 abc
5 3 abc
1 1 xyz
2 1 xyz
3 2 xyz
4 2 xyz
5 3 xyz
1 1 pqr
2 2 pqr
3 2 pqr

that sno restarts when batch no changes and sno restat from min id no

how to apply that

regards

TG
Master Smack Fu Yak Hacker

6065 Posts

Posted - 2011-07-18 : 13:57:05

This solution is not nearly as efficient as the 2005 (and greater) ranking functions but it is one way:


create table #t (ident int identity(1,1), id int, batch varchar(5))
insert #t (id, batch)
select id, batch
from   test
order by batch, id

select sno = t.ident - (select min(z.ident) from #t z where z.batch = t.batch) + 1
       ,id
       ,batch
from   #t t

OUTPUT:
sno         id          batch
----------- ----------- -----
1           1           abc
2           1           abc
3           2           abc
4           2           abc
5           3           abc
1           1           pqr
2           2           pqr
3           2           pqr
1           1           xyz
2           1           xyz
3           2           xyz
4           2           xyz
5           3           xyz

Be One with the Optimizer
TG

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2011-07-19 : 05:24:15

Alternatively if you use front end application to show data, you can do numbering there

Madhivanan

Failing to plan is Planning to fail

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