Re: prefer (+) oracle notation
От | Bruce Momjian |
---|---|
Тема | Re: prefer (+) oracle notation |
Дата | |
Msg-id | 200010192326.TAA19413@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: prefer (+) oracle notation (Herbert Liechti <Herbert.Liechti@thinx.ch>) |
Список | pgsql-general |
Agreed. > Tom Lane wrote: > > > > "Edmar Wiggers" <edmar@brasmap.com> writes: > > > I'm not sure about the standard, but I really like Oracle's notation for > > > foreign keys: > > > > > select a.item_number, b.group_code_description > > > from items a, group_codes b > > > where a.group_code = b.group_code (+); > > > > I beg to differ --- IMHO, Oracle's notation is brain dead. > > I agree. In my opinion the best syntax for outer joins was brought up > by informix. Ex: > > SELECT a.f1, b.f1, c.f1 > FROM a, OUTER( b, OUTER c ) > WHERE a.key = b.fkkey > AND b.key = c.fkkey > > Where b is outer from a and c outer from b. Precedence and > hierachical order is given by the parenthesis. Same example > > FROM a, OUTER ( b, c) > > b and c are outer from a. I find this syntax clear and logic without > any danger of missinterpretation > > Best regards > Herbie > -- 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, Pennsylvania 19026
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