How could I get the records recusrively (nested)?

How could I get the records recusrively (nested)?
I've a table ACCT with columns as follows.
ACCT_CD varchar(20)
TYPE_CD varchar(1)
It has following data.
ACCT1 F
ACCT10 F
ACCT2 F
ACCT3 F
ACCT4 F
ACCT5 F
ACCT6 F
ACCT7 F
ACCT8 F
ACCT9 F
GRP_1 G
GRP_2 G
SGRP_1 C
SGROUP C
I've another table ACCT_REL with columns as follows.
PARENT_ACCT varchar(20)
CHILD_ACCT varchar(20)
REL_TYP varchar(1)
It has following data.
SELECT * FROM ACCT_REL WHERE PARENT_ACCT = 'SGROUP'
SGROUP ACCT1 C
SGROUP ACCT2 C
SGROUP GRP_2 C
SGROUP SGRP_1 C
SELECT * FROM ACCT_REL WHERE PARENT_ACCT = 'GRP_1'
GRP_1 ACCT3 G
GRP_1 ACCT4 G
GRP_1 ACCT5 G
SELECT * FROM ACCT_REL WHERE PARENT_ACCT = 'GRP_2'
GRP_2 ACCT6 G
GRP_2 ACCT7 G
GRP_2 ACCT8 G
SELECT * FROM ACCT_REL WHERE PARENT_ACCT = 'SGRP_1'
SGRP_1 GRP_1 C
SGRP_1 ACCT9 C
SGRP_1 ACCT10 C
I want retrive all the child_acct for PARENT_ACCT = 'SGROUP'. If the
CHILD_ACCT has some records in the ACCT_REL table, then I would like to
get them also. It could have many levels of nesting. How could I get the
records recusrively?
E.g. In the above example, the expected result could be:
ACCT1
ACCT10
ACCT2
ACCT3
ACCT4
ACCT5
ACCT6
ACCT7
ACCT8
ACCT9
GRP_1
GRP_2
SGRP_1
Thanks,
DJ
*** Sent via Developersdex http://www.examnotes.net ***check this out... (on behalf of ML :)
http://milambda.blogspot.com/2005/0...or-monkeys.html|||Also check out CTEs (Common Table Expressions) if you are using 2005.
There is a good example posted in Omni's blog here:
http://omnibuzz-sql.blogspot.com/20...vs.ht
ml
"Omnibuzz" <Omnibuzz@.discussions.microsoft.com> wrote in message
news:9CB52622-90FB-4E32-9F92-CC3456633DDD@.microsoft.com...
> check this out... (on behalf of ML :)
> http://milambda.blogspot.com/2005/0...or-monkeys.html
>|||Get a copy of TREES & HIERARCHJIES IN SQL for several methods of
modeling this kidn of data. You do not need recursive procedural code
in the Nesteed sets model and do this in one simple query.|||
Can you please tell me how to do this?
An example would be helpful.
Thanks.
*** Sent via Developersdex http://www.examnotes.net ***|||I beleive --CELKO-- is suggesting that you change your data model to store
the data in a tree format.
Omni's post contains one method for doing this.
CTEs on SQL Server 2005 allow you to do it with a single sql statement using
your current data model, but performance may not be as good.
If you do a search on "TREES & HIERARCHIES IN SQL", or just the phrases SQL
TREES HIERARCHIES, you will find several examples, including some articles
by Joe (--CELKO--).
"DJ" <dominic_koyappillil@.yahoo.com> wrote in message
news:uQqaGahiGHA.3572@.TK2MSFTNGP04.phx.gbl...
>
> Can you please tell me how to do this?
> An example would be helpful.
> Thanks.
> *** Sent via Developersdex http://www.examnotes.net ***