Re: Case sensitivity question . . .
От | Gregory Wood |
---|---|
Тема | Re: Case sensitivity question . . . |
Дата | |
Msg-id | 001301c193d1$a4e1bd70$7889ffcc@comstock.com обсуждение исходный текст |
Ответ на | Case sensitivity question . . . ("Peter E. Chen" <pchen3@jhmi.edu>) |
Список | pgsql-general |
http://www7.us.postgresql.org/users-lounge/docs/7.1/user/sql-syntax.html#SQL -SYNTAX-IDENTIFIERS ----- Excerpt ----- There is a second kind of identifier: the delimited identifier or quoted identifier. It is formed by enclosing an arbitrary sequence of characters in double-quotes ("). A delimited identifier is always an identifier, never a key word. So "select" could be used to refer to a column or table named "select", whereas an unquoted select would be taken as a key word and would therefore provoke a parse error when used where a table or column name is expected. The example can be written with quoted identifiers like this: UPDATE "my_table" SET "a" = 5; Quoted identifiers can contain any character other than a double quote itself. This allows constructing table or column names that would otherwise not be possible, such as ones containing spaces or ampersands. The length limitation still applies. Quoting an identifier also makes it case-sensitive, whereas unquoted names are always folded to lower case. For example, the identifiers FOO, foo and "foo" are considered the same by Postgres, but "Foo" and "FOO" are different from these three and each other. [1] ---------- That being said, I wouldn't do it unless you really need it. Greg ----- Original Message ----- From: "Peter E. Chen" <pchen3@jhmi.edu> To: "Postgres (General)" <pgsql-general@postgresql.org> Sent: Wednesday, January 02, 2002 3:21 PM Subject: [GENERAL] Case sensitivity question . . . > Hey All, > > I'm trying to create new databases and tables. The database names and > tables always end up in lower case. Is there a way to have some upper case > letters in database and table names? > > Thanks for any help. > > Peter > > > ---------------------------(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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