Re: SQL: Are the "" around table & coloumnames necessary?
От | pauLSiew |
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Тема | Re: SQL: Are the "" around table & coloumnames necessary? |
Дата | |
Msg-id | a54pp2$10hc$1@jupiter.hub.org обсуждение исходный текст |
Ответ на | Re: SQL: Are the "" around table & coloumnames necessary? (Oliver Elphick <olly@lfix.co.uk>) |
Список | pgsql-sql |
Try not use the SQL keywords as ur table or field name. "Oliver Elphick" <olly@lfix.co.uk> wrote in message news:1014327565.3217.862.camel@linda... > On Mon, 2002-02-18 at 12:43, Mikey wrote: > > Hello, > > > > when I write a select for example, > > it doesn't work this way: > > > > select col1, col2 > > from my_table; > > > > instead of that I have to write > > > > select "col1", "col2" > > from "my_table"; > > > > I dont understand this...is there a way to use > > the more comfortable form without "" ? > > The two queries you show are identical. However, if any of the column > names contain upper-case characters and were enclosed in double-quotes > when the table was created, you will get the behaviour you are > complaining about, because all unquoted identifiers are folded to > lower-case before the query is executed. > > The solution is not to use upper-case characters in identifiers. > If you already have tables with upper-case names, drop them and recreate > them (or do pg_dumpall, edit the dump file and reload the database). > > -- > Oliver Elphick Oliver.Elphick@lfix.co.uk > Isle of Wight http://www.lfix.co.uk/oliver > GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C > > "My sheep hear my voice, and I know them, and they > follow me; And I give unto them eternal life; and they > shall never perish, neither shall any man pluck them > out of my hand." John 10:27,28 > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
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