>From the Using UniData manual: Alternate Indexes in UniQuery Statement Prior to UniData 5.2, only one index was used in the selection criteria of a UniQuery statement, even if the selection criteria contained more than one indexed attribute. UniQuery now uses all available indexes when processing a statement containing selection criteria.Note: You cannot use an alternate index with a LIKE clause when the comparative attribute is numeric.
Wally Terhune Technical Support Engineer Rocket Software 4600 South Ulster Street, Suite 1100 **Denver, CO 80237 **USA t: +1 720 475 8055 **e: wterh...@rocketsoftware.com **w: u2.rocketsoftware.com -----Original Message----- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Doug Farmer Sent: Wednesday, November 07, 2012 7:35 AM To: U2 Users List Subject: [U2] Multiple UniData Indexes in same select Good morning, I should know this, but as the gray gets thicker, some of the old knowledge seeps away. If you have indexes on multiple attributes on a file in UniData AND you include both of those indexed attributes in the same Select statement, how does UniData know which index to use? Does it use both? Neither? Thanks in advance, Doug -------------------------------------------------------- This e-mail is for the use of the intended recipient(s) only. If you have received this e-mail in error, please notify the sender immediately and then delete it. If you are not the intended recipient, you must not use, disclose or distribute this e-mail without the author's prior permission. We have taken precautions to minimize the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message. We cannot accept liability for any loss or damage caused by software viruses. Any views and/or opinions expressed in this e-mail are of the author only and do not represent the views of Epicor Software Corporation or any other company within its group. This message has been scanned for malware by Websense. www.websense.com _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
