mysql 달력만들기
- 2017. 3. 29. 11:13
출처 : http://www.gurubee.net/article/65315
SELECT ym
, MIN(CASE dw WHEN 1 THEN d END) Sun
, MIN(CASE dw WHEN 2 THEN d END) Mon
, MIN(CASE dw WHEN 3 THEN d END) Tue
, MIN(CASE dw WHEN 4 THEN d END) Wed
, MIN(CASE dw WHEN 5 THEN d END) Thu
, MIN(CASE dw WHEN 6 THEN d END) Fri
, MIN(CASE dw WHEN 7 THEN d END) Sat
FROM (SELECT date_format(dt,'%Y%m') ym
, Week(dt) w
, Day(dt) d
, DayofWeek(dt) dw
FROM (SELECT CONCAT(y, '0101') + INTERVAL a*100 + b*10 + c DAY dt
FROM (SELECT 0 a
UNION ALL SELECT 1
UNION ALL SELECT 2
UNION ALL SELECT 3
) a
, (SELECT 0 b
UNION ALL SELECT 1
UNION ALL SELECT 2
UNION ALL SELECT 3
UNION ALL SELECT 4
UNION ALL SELECT 5
UNION ALL SELECT 6
UNION ALL SELECT 7
UNION ALL SELECT 8
UNION ALL SELECT 9
) b
, (SELECT 0 c
UNION ALL SELECT 1
UNION ALL SELECT 2
UNION ALL SELECT 3
UNION ALL SELECT 4
UNION ALL SELECT 5
UNION ALL SELECT 6
UNION ALL SELECT 7
UNION ALL SELECT 8
UNION ALL SELECT 9
) c
, (SELECT '2015' y) d
WHERE a*100 + b*10 + c < DayOfYear(CONCAT(y, '1231'))
) a
) a
GROUP BY ym, w
;
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