몇주 정보 추출
select week('2004-12-31', 0) d31 ,week('2004-12-31', 2) d31 ,week('2005-01-01', 0) d1 ,week('2005-01-01', 2) d1 ,week('2005-01-02', 0) d2 ,week('2005-01-02', 2) d2 ; select week('2005-01-31', 0) d31 ,week('2005-01-31', 2) d31 ,week('2005-02-01', 0) d1 ,week('2005-02-01', 2) d1 ,week('2005-02-09', 0) d9 ,week('2005-02-09', 2) d9 ; select week('2005-01-01', 0) d1 ,week('2005-01-02', 0) d2 ,week('2..
2007. 6. 4.