Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
Home -> Community -> Mailing Lists -> Oracle-L -> RE: Cartesian
When you say "Cartesian Join" you are basically speaking, like you said, of a "Cartesian Product of two Matrixes". Each row joined to each row of each Matrix. Cartesian Joins in Relational DBs are basically 2 or more tables in query without a join condition so that each row in the first table is joined to every row in the other table.
So basically "Cartesian Join" = "Cartesian Product"
-----Original Message-----
Sent: Thursday, May 31, 2001 2:01 PM
To: Multiple recipients of list ORACLE-L
I guess this has already been answered, but to clarify:
I believe "Cartesian" refers to a *product* ("Cartesian product"), not a join.
-----Original Message-----
[mailto:Scott.Shafer_at_dcpds.cpms.osd.mil]
Sent: Thursday, May 31, 2001 1:41 PM
To: Multiple recipients of list ORACLE-L
Cartesian Join? <shudder>
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Paul Baumgartel
INET: PaulB_at_instipro.com
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu May 31 2001 - 15:12:19 CDT