Обсуждение: Date Parse
Hi all, I have a field in a table of type date. In a results set I get some dates. How can I access the month in those dates? Best regards, -- Paulo J. Matos : pocm(_at_)rnl.ist.utl.pt Instituto Superior Tecnico - Lisbon Software & Computer Engineering - A.I.- > http://www.rnl.ist.utl.pt/~pocm --- Yes, God had a deadline... So, He wroteit all in Lisp!
Paulo, given your_table has a column called date_col. SELECT to_char(date_col, 'Month') FROM your_table WHERE something is true; Will give you a response of the month spelled out. Change the 'Month' to 'MM' and you get a two character string from 01 to 12 for the month. Change it to 'month' and you get a lower case month, (january). check the docs on formatting: http://www.postgresql.org/idocs/index.php?functions-formatting.html Ted -----Original Message----- From: pocm@rnl.ist.utl.pt (Paulo J. Matos) To: pgsql-sql@postgresql.org Date: 30 Jan 2002 00:04:18 +0000 Subject: [SQL] Date Parse > Hi all, > > I have a field in a table of type date. > In a results set I get some dates. How can I access the month in > those dates? > > Best regards, > > -- > Paulo J. Matos : pocm(_at_)rnl.ist.utl.pt > Instituto Superior Tecnico - Lisbon > Software & Computer Engineering - A.I. > - > http://www.rnl.ist.utl.pt/~pocm > --- > Yes, God had a deadline... > So, He wrote it all in Lisp! > > > ---------------------------(end of > broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://archives.postgresql.org
Use the SQL EXTRACT function. This is covered in the docs at http://www.ca.postgresql.org/users-lounge/docs/7.1/postgres/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACT Briefly, SELECT EXTRACT(MONTH FROM TIMESTAMP '2001-02-30 12:34:56'); returns 2 On Tue, 2002-01-29 at 19:04, Paulo J. Matos wrote: > I have a field in a table of type date. > In a results set I get some dates. How can I access the month in > those dates? -- Andrew G. Hammond mailto:drew@xyzzy.dhs.org http://xyzzy.dhs.org/~drew/ 56 2A 54 EF 19 C0 3B 43 72 69 5B E3 69 5B A1 1F 613-389-5481 5CD3 62B0 254B DEB1 86E0 8959 093E F70A B457 84B1 "To blow recursion you must first blow recur" -- me
Hi Paulo, this should do for example: select substr( 'now'::date, 6, 2 ); Best regards, Chris At 00:04 +0000 01/30/2002, Paulo J. Matos wrote: >Hi all, > >I have a field in a table of type date. >In a results set I get some dates. How can I access the month in >those dates? > >Best regards, > >-- >Paulo J. Matos : pocm(_at_)rnl.ist.utl.pt >Instituto Superior Tecnico - Lisbon >Software & Computer Engineering - A.I. > - > http://www.rnl.ist.utl.pt/~pocm > --- > Yes, God had a deadline... > So, He wrote it all in Lisp! > > >---------------------------(end of broadcast)--------------------------- >TIP 6: Have you searched our list archives? > >http://archives.postgresql.org -- Chris Ruprecht Network grunt and bit pusher extraordinaíre _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com