Re: How to find records with the same field?

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

On Tue, 20 Jul 2004, Joost Kraaijeveld wrote:

> I have a table with column1, column2, column3 and column4. How do I get
> all records, sorted by column4 that have the same column1,column2 and
> column3?

SELECT * from table_name WHERE (c1=c2) AND (c2=c3) ORDER BY c4;

will work, I think:
===================
test=> CREATE TABLE joost (c1 varchar(10), c2 varchar(10), c3 varchar(10),
c4 varchar(10));
CREATE TABLE
test=> INSERT INTO joost VALUES ('test1','test1','test1','remark');
INSERT 1179458 1
test=> INSERT INTO joost VALUES ('test1','test1','test1','remark2');
INSERT 1179459 1
test=> INSERT INTO joost VALUES ('test1','test2','test3','nevermind');
INSERT 1179460 1
test=> SELECT * from joost ;
c1 | c2 | c3 | c4
- -------+-------+-------+-----------
test1 | test1 | test1 | remark
test1 | test1 | test1 | remark2
test1 | test2 | test3 | nevermind
(3 rows)

test=> SELECT * from joost WHERE (c1=c2) AND (c2=c3) ORDER BY c4
test-> ;
c1 | c2 | c3 | c4
- -------+-------+-------+--------
test1 | test1 | test1 | remark
test1 | test1 | test1 | remark
(2 rows)
===================

Regards,

- --
Devrim GUNDUZ
devrim~gunduz.org devrim.gunduz~linux.org.tr
http://www.tdmsoft.com
http://www.gunduz.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (GNU/Linux)

iD8DBQFA/OoHtl86P3SPfQ4RAqdmAKDVyBy6LFR1zFk4phuZnkHdaOk4SACaAwz9
JUhJUBtGoabox8VG9EpTkBQ=
=SfQ5
-----END PGP SIGNATURE-----