database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-09-02 04:21:28 +03:00
Code Activity

I finish devel. of Oracle compatible DateTime routines TO_CHAR(),

Browse Source 
TO_DATE()
and PgSQL extension FROM_CHAR().

TO_CHAR() routine allow formating text output with a datetime values:

        SELECT TO_CHAR('now'::datetime, '"Now is: "HH24:MI:SS');
        to_char
        ----------------
        Now is: 21:04:10

FROM_CHAR() routine allow convert text to a datetime:

        SELECT FROM_CHAR('September 1999 10:20:30', 'FMMonth YYYY
HH:MI:SS');
        from_char
        -----------------------------
        Wed Sep 01 10:20:30 1999 CEST

TO_DATE() is equal with FROM_CHAR(), but output a Date only:

        SELECT TO_DATE('September 1999 10:20:30', 'FMMonth YYYY
HH:MI:SS');
        to_date
        ----------
        09-01-1999


In attache is compressed dir for the contrib. All is prepared, but I'am
not
sure if Makefile is good (probably yes).

Comments & suggestions ?


Thomas, thank you for your good advices.

                                                        Karel


------------------------------------------------------------------------------

Karel Zak <zakkr@zf.jcu.cz>
http://home.zf.jcu.cz/~zakkr/
This commit is contained in:
Bruce Momjian
1999-11-29 23:26:18 +00:00
parent 1f747c6722
commit 1c5aec60bb
10 changed files with 1878 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
contrib/dateformat/to-from_char.h Normal file
View File

@@ -0,0 +1,18 @@
#ifndef TO_FROM_CHAR_H
#define TO_FROM_CHAR_H
/*------
* For postgres
*------
*/
extern text *to_char(DateTime *dt, text *format);
extern DateTime *from_char(text *date_str, text *format);
extern DateADT to_date(text *date_str, text *format);
extern text *ordinal(int4 num, text *type);
extern char *months_full[]; /* full months name */
extern char *rm_months[]; /* roman numeral of months */
#endif