Re: no IF - am I missing something ?
| От | Harald Fuchs |
|---|---|
| Тема | Re: no IF - am I missing something ? |
| Дата | |
| Msg-id | pufyyp3wii.fsf@srv.protecting.net обсуждение исходный текст |
| Ответ на | no IF - am I missing something ? ("Richard Crawley" <richard.crawley@quadronservices.co.uk>) |
| Список | pgsql-general |
In article <20050321075049.GA18302@winnie.fuhr.org>, Michael Fuhr <mike@fuhr.org> writes: > On Mon, Mar 21, 2005 at 12:35:22AM -0600, Thomas F.O'Connell wrote: >> The number of lines depends merely on where you place your line breaks. >> >> IF(days_complete <= 120, job_price, 0)AS Days_120 >> >> could be written as: >> >> CASE WHEN days_complete <= 120 THEN job_price ELSE 0 END AS Days_120 >> >> There might be somewhat less syntactic sugar, but this is not a five >> line expression and, to me, is more readable than a comma-delimited >> list where position alone indicates function in the expression. > CASE is also standard SQL, whereas IF isn't (unless I've overlooked > it in the SQL:2003 draft). CASE, despite being standard SQL, is even supported by MySQL ;-)
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