Article View: borland.public.cppbuilder.database.ado
Article #5291Re: Any ideas of how to do one query that include more of one ADOTable? Can you help me...
From: Mark Cashman
Date: Fri, 15 Jun 2001 02:17
Date: Fri, 15 Jun 2001 02:17
35 lines
2189 bytes
2189 bytes
Hi, Jaime! You can either... 1) Use a lookup field on one TADOTable that refers to fields in another TADOTable or 2) Use a TADOQuery with a SELECT command that joins the two underlying database tables. To create a lookup field, double-click on the TADOTable, right button on the fields editor window that appears, pick "New Field" and then create the lookup field; set the field in the current table which is to be used as the key to the other table, set the other table, and set which field in the other table is the key, and which field in the other table is to be returned. To create a SQL SELECT command to join the two tables, follow the pattern... SELECT * FROM sometable,othertable WHERE sometable.otherID = othertable.ID Note that the table names in this command are not the names of two TADOTable components, but are the names of underlying database tables. I hope this helps. ------ Mark Cashman (TeamB - C++ Builder), creator of The Temporal Doorway at http://www.temporaldoorway.com - Original digital art, writing, music and more - C++ Builder / JBuilder Tips and The C++ Builder Programmer's Webring (Join us!) http://www.temporaldoorway.com/programming/index.htm ------
Technical Details
Message-ID:
<3B297036.68B7A5B3@temporaldoorway.com>Path:
arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!sn-xit-02!supernews.com!newsfeed.direct.ca!look.ca!newsfeed.wirehub.nl!PeerFeed.KWeb.on.ca!dnewsReferences:
<3b28e891$1_1@dnews>Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10698b,4a7721c2ca7357b3 X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2001-06-14 19:20:16 PST Message-ID: <3B297036.68B7A5B3@temporaldoorway.com> Date: Thu, 14 Jun 2001 22:17:27 -0400 From: Mark Cashman <mcashman@temporaldoorway.com> Reply-To: mcashman@temporaldoorway.com X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: borland.public.cppbuilder.database.ado Subject: Re: Any ideas of how to do one query that include more of one ADOTable? Can you help me... References: <3b28e891$1_1@dnews> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 24.14.197.193 X-Trace: dnews 992571361 24.14.197.193 (14 Jun 2001 19:16:01 -0700) Lines: 37 Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!sn-xit-02!supernews.com!newsfeed.direct.ca!look.ca!newsfeed.wirehub.nl!PeerFeed.KWeb.on.ca!dnews