Hi Bill, Try joining your table to itself, and making your criteria part of the join ie. SELECT A.document from tblDocCharacteristics A INNER JOIN tblDocCharacteristics B ON A.document = B.document AND A.characteristic = 'a' AND B.characteristic = 'b'
Regards Simon. You may have done this already... since a document can have many characteristics, you should have a documents table and a characteristics table. -----Original Message----- From: Bill Conlon [mailto:[EMAIL PROTECTED] Sent: 10 July 2003 17:03 To: [EMAIL PROTECTED] Subject: Witango-Talk: OT: SQL help I picked my SQL in the street, so it's kind of rudimentary. Maybe someone can point me in the right direction. Here's a table document characteristic 1 a 1 b 1 d 2 a 2 d 2 e 3 a 3 b I want to SELECT the document(s) that match all of a set of characteristics. Say I want all documents with characteristic a AND b: This should return documents 1 and 3 Likewise, requesting characteristics a AND d returns documents 1 and 2 Say I request characteristics b AND d: I should get no rows. thanks Bill Conlon To the Point 345 California Avenue Suite 2 Palo Alto, CA 94306 office: 650.327.2175 fax: 650.329.8335 mobile: 650.906.9929 e-mail: mailto:[EMAIL PROTECTED] web: http://www.tothept.com ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf ******************************************************************** This message is intended only for the use of the person(s) ("the intended recipient(s)") to whom it is addressed. It may contain information which is privileged and confidential within the meaning of applicable law. If you are not the intended recipient, please contact the sender as soon as possible. The views expressed in this communication may not necessarily be the views held by LGCSB (Local Government Computer Services Board). Any attachments have been checked by a virus scanner and appear to be clean. Please ensure that you also scan all messages, as LGCSB does not accept any liability for contamination or damage to your systems. ******************************************************************** ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf
