Path: news.easynews.com!core-easynews!newsfeed1.easynews.com!easynews.com!easynews!cyclone1.gnilink.net!spamkiller2.gnilink.net!gnilink.net!nwrdny02.gnilink.net.POSTED!32f31ba7!not-for-mail From: "Alan" Newsgroups: comp.databases.theory References: <40c30358$0$568$e4fe514c@news.xs4all.nl> Subject: Re: cdt Lines: 30 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Message-ID: Date: Sun, 06 Jun 2004 13:17:22 GMT NNTP-Posting-Host: 141.158.4.151 X-Complaints-To: abuse@verizon.net X-Trace: nwrdny02.gnilink.net 1086527842 141.158.4.151 (Sun, 06 Jun 2004 09:17:22 EDT) NNTP-Posting-Date: Sun, 06 Jun 2004 09:17:22 EDT Xref: core-easynews comp.databases.theory:35729 X-Received-Date: Sun, 06 Jun 2004 06:16:43 MST (news.easynews.com) "Laconic2" wrote in message news:m-SdnVqX64hkjV7dRVn-vw@comcast.com... > Perhaps the problem lies in the word "implicit", in the term "implicit > meaning". Perhaps what is implicit is subject to misinterpratation. Not if you know the difference between implicit and explicit, which you have provided by example, below. Implicit is implied, explicit is expressed. Implicit is correct in this case. I'm fairly sure Drs. Elmasri and Navathe carefully considered which word to use, and that their editor reviewed it somewhere during the process of creating three editions of the book. Try, Known facts that can be recorded and have _an implied_ meaning. They're not explicit until after they've been recorded (or stated, i.e., expressed). > > Back in the days before databases, when COBOL programmers stored data in > records in files, the records had an "implicit" record definition. The > COBOL programmer needed to include the correct record definition in the > program in order to read the data. By including the data definitions in the > schema, and putting the schema in the database, the definitions were made > "explicit" rather than "implicit". > > >