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== SELECT STR_TO_DATE("00/00/0000", "%m/%d/%Y");==



<source lang="sql">
mysql>
mysql> SELECT STR_TO_DATE("00/00/0000", "%m/%d/%Y");
+---------------------------------------+
| STR_TO_DATE("00/00/0000", "%m/%d/%Y") |
+---------------------------------------+
| 0000-00-00 |
+---------------------------------------+
1 row in set (0.00 sec)
mysql></source>

== SELECT STR_TO_DATE("04/31/2004", "%m/%d/%Y");==



<source lang="sql">
mysql>
mysql> SELECT STR_TO_DATE("04/31/2004", "%m/%d/%Y");
+---------------------------------------+
| STR_TO_DATE("04/31/2004", "%m/%d/%Y") |
+---------------------------------------+
| 2004-04-31 |
+---------------------------------------+
1 row in set (0.00 sec)
mysql></source>

== STR_TO_DATE(str,format)==

STR_TO_DATE(str,format) is the inverse of the DATE_FORMAT() function.
STR_TO_DATE() returns a DATETIME value.
The following specifiers may be used in the format string.
The "%" character is required before format specifier characters.
Specifier
Description
%a
Abbreviated weekday name (Sun..Sat)
%b
Abbreviated month name (Jan..Dec)
%c
Month, numeric (0..12)
%D
Day of the month with English suffix (0th, 1st, 2nd, 3rd, ?-)
%d
Day of the month, numeric (00..31)
%e
Day of the month, numeric (0..31)
%f
Microseconds (000000..999999)
%H
Hour (00..23)
%h
Hour (01..12)
%I
Hour (01..12)
%i
Minutes, numeric (00..59)
%j
Day of year (001..366)
%k
Hour (0..23)
%l
Hour (1..12)
%M
Month name (January..December)
%m
Month, numeric (00..12)
%p
AM or PM
%r
Time, 12-hour (hh:mm:ss followed by AM or PM)
%S
Seconds (00..59)
%s
Seconds (00..59)
%T
Time, 24-hour (hh:mm:ss)
%U
Week (00..53), where Sunday is the first day of the week
%u
Week (00..53), where Monday is the first day of the week
%V
Week (01..53), where Sunday is the first day of the week; used with %X
%v
Week (01..53), where Monday is the first day of the week; used with %x
%W
Weekday name (Sunday..Saturday)
%w
Day of the week (0=Sunday..6=Saturday)
%X
Year for the week where Sunday is the first day of the week, numeric, four digits; used with %V
%x
Year for the week, where Monday is the first day of the week, numeric, four digits; used with %v
%Y
Year, numeric, four digits
%y
Year, numeric (two digits)
%%
A literal "%" character
%x
x, for any "x" not listed above

== To convert a year-week to a date, then you should also specify the weekday:==



<source lang="sql">
mysql>
mysql>
mysql> SELECT STR_TO_DATE("200442 Monday", "%X%V %W");
+-----------------------------------------+
| STR_TO_DATE("200442 Monday", "%X%V %W") |
+-----------------------------------------+
| 2004-10-18 |
+-----------------------------------------+
1 row in set (0.00 sec)
mysql></source>

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в 13:44, 26 мая 2010

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