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!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Windows Ada database support. Date: Tue, 30 Nov 2004 16:04:15 +0100 Message-ID: References: <5e3e03a7.0411240431.7e037a4e@posting.google.com> <2004112420030750073%david@bottoncom> <17w0jtt2xq2ya.1nj2623n37457.dlg@40tude.net> <1ohmhrsp481iu.w61dt6dz9cqk$.dlg@40tude.net> <1cxufyzpjc6ns.1lomm6dpfxyhb$.dlg@40tude.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de J0ogsHUGWnIPuReCD355IQSKZIRv/wvmn+dD1d411mbQ/sLpA= User-Agent: 40tude_Dialog/2.0.12.1 Xref: g2news1.google.com comp.lang.ada:6667 Date: 2004-11-30T16:04:15+01:00 List-Id: On 30 Nov 2004 14:46:13 +0100, Ole-Hjalmar Kristensen wrote: > The transaction concept is significantly more powerful and complex > than protected procedures or rendezvous mechanisms in programming > languages. Transaction is an atomic change. It is definitely less powerful than general notion of protected operation. Can you requeue a transaction? Can you synchronize on a transaction? > Cursors are somewhat evil, and certainly over-used. Relational algebra > is not on a particularly low abstraction level, and certainly higher > than the typical procedural manipulations you do within a programming > language. What makes you think so? If the above were true, then it would directly imply Ada and other compilers should be written in SQL. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de