From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,bf02c238a92156a3 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Windows Ada database support. Date: Thu, 9 Dec 2004 13:59:22 +0100 Message-ID: References: <5e3e03a7.0411240431.7e037a4e@posting.google.com> <11w2chxxtggn9.a442ecwtujd2$.dlg@40tude.net> <1jrbh30djhwuh$.cpwm02mv7d1d.dlg@40tude.net> <18u46qzjs6s8v.19927r9ay0kkh.dlg@40tude.net> <1bucyi24j39vb.14y21qffgez47.dlg@40tude.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: individual.net 0fARMZLT6XbyadCd2+45iAS30hqAZvvejukx3lap2Nym50XC4= User-Agent: 40tude_Dialog/2.0.12.1 Xref: g2news1.google.com comp.lang.ada:6864 Date: 2004-12-09T13:59:22+01:00 List-Id: On Thu, 9 Dec 2004 12:12:22 +0000 (UTC), Georg Bauhaus wrote: [...] > First, the operations need not be expensive, e.g. because there is > an index. Global operations are always expensive. > Second, when defining the data format, I may not be in a position to > choose freely. A definition that suits my program might be a real obstacle > to someone else's. It is simpler: there is no data without operations. When you define something as a table of rows and columns you also implicitly define the operations. And these are that real obstacle, in so many cases. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de