[Mysql] date parse STR_TO_DATE / 문자열 날짜로 변환

오늘 특정 테이블에 VARCHAR 타입인 컬럼을 DATETIME 포맷으로 변경해 넣어야 하는 작업이 발생했다.

- a_list 테이블의 정보를 b_info 테이블로 옮겨야 했다.

"Sun, 16 Nov 2014 15:00:00 GMT"

"Fri, 09 Nov 2018 15:00:00 GMT"

이런 형식의 데이터를 STR_TO_DATE() 함수를 사용해 DATETIME 형태로 변환하여 넣을수 있었다.

INSERT INTO a_info (published_date)
SELECT STR_TO_DATE(b_list.publish_date, '%a, %d %b %Y') FROM b_list;

"Sun, 16 Nov 2014 15:00:00 GMT"    >>> "2014-11-16"

"Fri, 09 Nov 2018 15:00:00 GMT"     >>> "2018-11-09"

아래는 mysql 공식 홈페이지에서 발췌해온 표입니다. (대소문자를 구별합니다.)

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; WEEK()mode 0
%u	Week (00..53), where Monday is the first day of the week; WEEK()mode 1
%V	Week (01..53), where Sunday is the first day of the week; WEEK()mode 2; used with %X
%v	Week (01..53), where Monday is the first day of the week; WEEK()mode 3; 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