Re: Standards URL's
От | Bruce Momjian |
---|---|
Тема | Re: Standards URL's |
Дата | |
Msg-id | 200204170501.g3H51c010539@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Standards URL's (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
I have just added the following developer's FAQ item. The SQL99 URL in the attached email, ftp://jerry.ece.umassd.edu/isowg3/x3h2/Standards/, is not longer active so I did not mention it. --------------------------------------------------------------------------- 1.12) Where can I get a copy of the SQL standards? There are two pertinent standards, SQL92 and SQL99. These standards are endorsed by ANSI and ISO. A draft of the SQL92 standard is available at http://www.contrib.andrew.cmu.edu/~shadow/. The SQL99 standard must be purchased from ANSI at http://www.ansi.org/. The main standards document is ANSI/ISO/IEC 9075-2-1999. A summary of these standards is at http://dbs.uni-leipzig.de/en/lokal/standards.pdf and http://db.konkuk.ac.kr/present/SQL3.pdf. --------------------------------------------------------------------------- Tom Lane wrote: > Bruce Momjian <pgman@candle.pha.pa.us> writes: > > Here are the URL's for the SQL standards. Where should these go? Are > > they legal? > > > http://www.ansi.org > > http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt > > ftp://gatekeeper.dec.com/pub/standards/sql > > ftp://jerry.ece.umassd.edu/isowg3/x3h2/Standards/ > > > ANSI PDF $20 > > ISO PDF $310 > > The document at CMU is a draft version of SQL92, which is legal to > distribute free AFAIK (at least that's been ISO's practice with other > draft standards). The documents at DEC are some intermediate version > that is probably best ignored. The documents at umassd are SQL99, and > not marked as drafts; if they are final text then they might well be > considered pirate copies by ISO. But more likely they are late drafts. > > Of course, ANSI will be happy to sell you a certifiably legal copy. > > What I want to know is what's the difference between the "ANSI" and > "ISO" PDF versions that ANSI sells, other than a factor of 15 in price? > I sent an email inquiry about that to ANSI a month ago, and have not > gotten an answer. Anyone know? > > regards, tom lane > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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