Re: if else query help
От | Josh Berkus |
---|---|
Тема | Re: if else query help |
Дата | |
Msg-id | 39E5DA4B.DCE967D6@agliodbs.com обсуждение исходный текст |
Ответ на | if else query help ("Brian C. Doyle" <bcdoyle@mindspring.com>) |
Список | pgsql-sql |
Brian, Jean-Christophe, >Someone corrects me if I'm wrong, I come from the Oracle world... > > Dates (or I should say TimeStamps) are stored as floating point values > : the integer part is the number of days since a certain date > (epoch or 01/01/1970 on unix-based databases) and the fractionnal part is the > portion of the day (although I don't know --yet-- how to convert > date2-date1 to an integer, trunc does not work). You're doing this the hard way. One of Postgres' best features is its rich collection of date-manipulation functions. Please see: ... Hmmmm. The online docs appear to be down. When they're back up, please check the sections on: Date/Time data types, and Date/Time manipulation functions. -Josh Berkus P.S. Brian, a general tutorial on writing SQL, such as O'Reilly's soon-to-be released SQL book, might help you a great deal. -- ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete informationtechnology josh@agliodbs.com and data management solutions (415) 436-9166 for law firms, small businesses fax 436-0137 and non-profit organizations. pager 338-4078 San Francisco
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