通过Mysql查询，计算出当年某月的确切周数。 例如，我必须通过 mysql 确定这个日期 19-2-2015 的周数？
我试过这个查询，但它获取了 2015 年的错误结果:
SELECT WEEK(my_date_field,5) -
WEEK(DATE_SUB(my_date_field, INTERVAL DAYOFMONTH(my_date_field)-1 DAY),5)+1
我只想通过mysql根据当前日历计算该月的当前周数。
我有一个数据库表:
CREATE TABLE IF NOT EXISTS `lcsi` ( `id` int(10) unsigned NOT NULL auto_increment, `batchID` datetime default NULL, `ticker` varchar(8) default NULL, `price` float(4,2) default NULL, `date` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
And and inserted data like
INSERT INTO `lcsi` (`id`, `batchID`, `ticker`, `price`, `date`) VALUES (1, '2003-12-16 11:26:04', 'ACMTA', 11.65, '2003-12-16 16:27:37'), (2, '2003-12-16 11:26:04', 'ACO', 16.61, '2003-12-16 16:27:37'), (3, '2003-12-16 11:26:04', 'ADLTQ.OB', 0.31, '2003-12-16 16:27:37'), (4, '2003-12-16 11:26:04', 'AHH', 20.75, '2003-12-16 16:27:38'), (5, '2003-12-16 11:26:04', 'ALG', 15.18, '2003-12-16 16:27:38'), (6, '2003-12-16 11:26:04', 'AMN', 34.89, '2003-12-16 16:27:38'), (7, '2003-12-16 11:26:04', 'ARTW', 4.53, '2008-01-02 16:12:56'), (8, '2003-12-16 11:26:04', 'ASVI', 30.59, '2003-12-16 16:27:38'), (9, '2003-12-16 11:26:04', 'BZH', 99.66, '2003-12-16 16:27:39'), (10, '2003-12-16 11:26:04', 'CALC', 10.85, '2003-12-16 16:27:39'), (11, '2003-12-16 11:26:04', 'CAT', 80.26, '2003-12-16 16:27:39'), (12, '2003-12-16 11:26:04', 'CAV', 2.98, '2003-12-16 16:27:39'), (13, '2003-12-16 11:26:04', 'CENT', 26.00, '2003-12-16 16:27:40'), (14, '2003-12-16 11:26:04', 'CLWY', 0.46, '2003-12-16 16:27:40'), (15, '2003-12-16 11:26:04', 'CNH', 15.40, '2003-12-16 16:27:40'), (16, '2003-12-16 11:26:04', 'DE', 63.82, '2003-12-16 16:27:40'), (17, '2003-12-16 11:26:04', 'DEVC', 7.12, '2003-12-16 16:27:41'), (18, '2003-12-16 11:26:04', 'DOW', 40.01, '2003-12-16 16:27:41'), (19, '2003-12-16 11:26:04', 'ERSN.PK', 0.00, '2003-12-16 16:27:41'), (20, '2003-12-16 11:26:04', 'F', 14.29, '2003-12-16 16:27:41'), (21, '2003-12-16 11:26:04', 'FBST', 6.58, '2003-12-16 16:27:42'), (22, '2003-12-16 11:26:04', 'FRK', 55.96, '2003-12-16 16:27:42'), (23, '2003-12-16 11:26:04', 'FSHOX', 33.74, '2003-12-16 16:27:42'), (24, '2003-12-16 11:26:04', 'GEHL', 12.52, '2003-12-16 16:27:42'), (25, '2003-12-16 11:26:04', 'GM', 49.35, '2003-12-16 16:27:43'), (26, '2003-12-16 11:26:04', 'GRIF', 14.35, '2003-12-16 16:27:43'), (27, '2003-12-16 11:26:04', 'GVA', 23.50, '2003-12-16 16:27:43'), (28, '2003-12-16 11:26:04', 'HAN', 34.28, '2003-12-16 16:27:43'), (29, '2003-12-16 11:26:04', 'HBP', 2.90, '2008-01-02 16:12:44'), (30, '2003-12-16 11:26:04', 'HD', 34.01, '2003-12-16 16:27:44'), (31, '2003-12-16 11:26:04', 'HORT', 4.52, '2003-12-16 16:27:44'), (32, '2003-12-16 11:26:04', 'JCTCF', 4.80, '2003-12-16 16:27:44'), (33, '2003-12-16 11:26:04', 'KNUR.OB', 0.14, '2003-12-16 16:27:45'), (34, '2003-12-16 11:26:04', 'LAF', 38.80, '2003-12-16 16:27:45'), (35, '2003-12-16 11:26:04', 'LMT', 49.01, '2003-12-16 16:27:45'), (36, '2003-12-16 11:26:04', 'LOW', 52.97, '2003-12-16 16:27:45'), (37, '2003-12-16 11:26:04', 'LSCO', 13.46, '2003-12-16 16:27:46'), (38, '2003-12-16 11:26:04', 'MHCO.PK', 1.60, '2003-12-16 16:27:46'), (39, '2003-12-16 11:26:04', 'MHP', 68.05, '2003-12-16 16:27:46'), (40, '2003-12-16 11:26:04', 'MKTAY', 9.55, '2003-12-16 16:27:46'), (41, '2003-12-16 11:26:04', 'MLM', 45.42, '2003-12-16 16:27:47'), (42, '2003-12-16 11:26:04', 'MRGO', 7.11, '2003-12-16 16:27:47'), (43, '2003-12-16 11:26:04', 'MVCO', 1.60, '2003-12-16 16:27:47'), (44, '2003-12-16 11:26:04', 'NEQS.PK', 0.05, '2003-12-16 16:27:47'), (45, '2003-12-16 11:26:04', 'NWL', 21.83, '2003-12-16 16:27:48'), (46, '2003-12-16 11:26:04', 'PHHM', 17.56, '2003-12-16 16:27:48'), (47, '2003-12-16 11:26:04', 'POOL', 31.84, '2003-12-16 16:27:48'), (48, '2003-12-16 11:26:04', 'RMIX', 6.25, '2003-12-16 16:27:48'), (49, '2003-12-16 11:26:04', 'SEHI', 2.18, '2003-12-16 16:27:49'), (50, '2003-12-16 11:26:04', 'SNA', 30.77, '2003-12-16 16:27:49'), (51, '2003-12-16 11:26:04', 'TECUA', 45.64, '2003-12-16 16:27:49'), (52, '2003-12-16 11:26:04', 'TII', 34.26, '2003-12-16 16:27:49'), (53, '2003-12-16 11:26:04', 'TSCO', 39.24, '2003-12-16 16:27:49'), (54, '2003-12-16 11:26:04', 'TTC', 45.84, '2003-12-16 16:27:50'), (55, '2003-12-16 11:26:04', 'URI', 18.59, '2003-12-16 16:27:50'), (56, '2003-12-16 11:26:04', 'USHG.OB', 0.55, '2003-12-16 16:27:50'), (57, '2003-12-16 11:26:04', 'VOLVY', 29.99, '2003-12-16 16:27:50'), (58, '2003-12-16 11:26:04', 'WIKS.OB', 0.35, '2003-12-16 16:27:51'), (59, '2003-12-16 11:26:04', 'WMSI', 4.07, '2003-12-16 16:27:51'), (60, '2003-12-16 11:26:04', 'WPEC.OB', 0.35, '2003-12-16 16:27:51'), (61, '2003-12-16 11:27:16', 'ACMTA', 11.65, '2003-12-16 16:28:49'), (62, '2003-12-16 11:27:16', 'ACO', 16.56, '2003-12-16 16:28:49'), (63, '2003-12-16 11:27:16', 'ADLTQ.OB', 0.31, '2003-12-16 16:28:50'), (64, '2003-12-16 11:27:16', 'AHH', 20.75, '2003-12-16 16:28:50'), (65, '2003-12-16 11:27:16', 'ALG', 15.18, '2003-12-16 16:28:50'), (66, '2003-12-16 11:27:16', 'AMN', 34.89, '2003-12-16 16:28:50'), (67, '2003-12-16 11:27:16', 'ARTW', 4.53, '2003-12-16 16:28:51'), (68, '2003-12-16 11:27:16', 'ASVI', 30.59, '2003-12-16 16:28:51'), (69, '2003-12-16 11:27:16', 'BZH', 99.70, '2003-12-16 16:28:51'), (70, '2003-12-16 11:27:16', 'CALC', 10.85, '2003-12-16 16:28:51'), (71, '2003-12-16 11:27:16', 'CAT', 80.25, '2003-12-16 16:28:52'), (72, '2003-12-16 11:27:16', 'CAV', 2.98, '2003-12-16 16:28:52'), (73, '2003-12-16 11:27:16', 'CENT', 26.00, '2003-12-16 16:28:52'), (74, '2003-12-16 11:27:16', 'CLWY', 0.46, '2003-12-16 16:28:52'), (75, '2003-12-16 11:27:16', 'CNH', 15.35, '2003-12-16 16:28:52'), (76, '2003-12-16 11:27:16', 'DE', 63.89, '2003-12-16 16:28:53'), (77, '2003-12-16 11:27:16', 'DEVC', 7.12, '2003-12-16 16:28:53'), (78, '2003-12-16 11:27:16', 'DOW', 40.01, '2003-12-16 16:28:53'), (79, '2003-12-16 11:27:16', 'ERSN.PK', 0.00, '2003-12-16 16:28:53'), (80, '2003-12-16 11:27:16', 'F', 14.28, '2003-12-16 16:28:54'), (81, '2003-12-16 11:27:16', 'FBST', 6.58, '2003-12-16 16:28:54'), (82, '2003-12-16 11:27:16', 'FRK', 56.00, '2003-12-16 16:28:54'), (83, '2003-12-16 11:27:16', 'FSHOX', 33.74, '2003-12-16 16:28:55'), (84, '2003-12-16 11:27:16', 'GEHL', 12.52, '2003-12-16 16:28:55'), (85, '2003-12-16 11:27:16', 'GM', 49.41, '2003-12-16 16:28:55'), (86, '2003-12-16 11:27:16', 'GRIF', 14.35, '2003-12-16 16:28:55'), (87, '2003-12-16 11:27:16', 'GVA', 23.50, '2003-12-16 16:28:56'), (88, '2003-12-16 11:27:16', 'HAN', 34.28, '2003-12-16 16:28:56'), (89, '2003-12-16 11:27:16', 'HBP', 2.90, '2003-12-16 16:28:56'), (90, '2003-12-16 11:27:16', 'HD', 34.02, '2003-12-16 16:28:57'), (91, '2003-12-16 11:27:16', 'HORT', 4.52, '2003-12-16 16:28:57'), (92, '2003-12-16 11:27:16', 'JCTCF', 4.80, '2003-12-16 16:28:57'), (93, '2003-12-16 11:27:16', 'KNUR.OB', 0.14, '2003-12-16 16:28:57'), (94, '2003-12-16 11:27:16', 'LAF', 38.80, '2003-12-16 16:28:58'), (95, '2003-12-16 11:27:16', 'LMT', 49.01, '2003-12-16 16:28:58'), (96, '2003-12-16 11:27:16', 'LOW', 53.01, '2003-12-16 16:28:58'), (97, '2003-12-16 11:27:16', 'LSCO', 13.46, '2003-12-16 16:28:59'), (98, '2003-12-16 11:27:16', 'MHCO.PK', 1.60, '2003-12-16 16:28:59'), (99, '2003-12-16 11:27:16', 'MHP', 68.07, '2003-12-16 16:28:59'), (100, '2003-12-16 11:27:16', 'MKTAY', 9.55, '2003-12-16 16:28:59'), (101, '2003-12-16 11:27:16', 'MLM', 45.44, '2003-12-16 16:29:00'), (102, '2003-12-16 11:27:16', 'MRGO', 7.11, '2003-12-16 16:29:00'), (103, '2003-12-16 11:27:16', 'MVCO', 1.60, '2003-12-16 16:29:00'), (104, '2003-12-16 11:27:16', 'NEQS.PK', 0.05, '2003-12-16 16:29:01'), (105, '2003-12-16 11:27:16', 'NWL', 21.84, '2003-12-16 16:29:01'), (106, '2003-12-16 11:27:16', 'PHHM', 17.56, '2003-12-16 16:29:01'), (107, '2003-12-16 11:27:16', 'POOL', 31.83, '2003-12-16 16:29:01'), (108, '2003-12-16 11:27:16', 'RMIX', 6.21, '2003-12-16 16:29:02'), (109, '2003-12-16 11:27:16', 'SEHI', 2.18, '2003-12-16 16:29:02'), (110, '2003-12-16 11:27:16', 'SNA', 30.77, '2003-12-16 16:29:02'), (111, '2003-12-16 11:27:16', 'TECUA', 45.64, '2003-12-16 16:29:03'), (112, '2003-12-16 11:27:16', 'TII', 34.34, '2003-12-16 16:29:03'), (113, '2003-12-16 11:27:16', 'TSCO', 39.25, '2003-12-16 16:29:03'), (114, '2003-12-16 11:27:16', 'TTC', 45.84, '2003-12-16 16:29:03'), (115, '2003-12-16 11:27:16', 'URI', 18.59, '2003-12-16 16:29:04'), (116, '2003-12-16 11:27:16', 'USHG.OB', 0.55, '2003-12-16 16:29:04'), (117, '2003-12-16 11:27:16', 'VOLVY', 29.99, '2003-12-16 16:29:04'), (118, '2003-12-16 11:27:16', 'WIKS.OB', 0.35, '2003-12-16 16:29:05'), (119, '2003-12-16 11:27:16', 'WMSI', 4.07, '2003-12-16 16:29:05'), (120, '2003-12-16 11:27:16', 'WPEC.OB', 0.35, '2003-12-16 16:29:05'), (121, '2003-12-16 11:47:36', 'ACMTA', 11.65, '2003-12-16 16:49:09'), (122, '2003-12-16 11:47:36', 'ACO', 16.62, '2003-12-16 16:49:09'), (123, '2003-12-16 11:47:36', 'ADLTQ.OB', 0.31, '2003-12-16 16:49:09'), (124, '2003-12-16 11:47:36', 'AHH', 20.85, '2003-12-16 16:49:10'), (125, '2003-12-16 11:47:36', 'ALG', 15.20, '2003-12-16 16:49:10'), (126, '2003-12-16 11:47:36', 'AMN', 34.95, '2003-12-16 16:49:10'), (127, '2003-12-16 11:47:36', 'ARTW', 4.53, '2003-12-16 16:49:10'), (128, '2003-12-16 11:47:36', 'ASVI', 30.65, '2003-12-16 16:49:11'), (129, '2003-12-16 11:47:36', 'BZH', 99.99, '2003-12-16 16:49:11'), (130, '2003-12-16 11:47:36', 'CALC', 10.85, '2003-12-16 16:49:11'), (131, '2003-12-16 11:47:36', 'CAT', 80.35, '2003-12-16 16:49:11'), (132, '2003-12-16 11:47:36', 'CAV', 3.00, '2003-12-16 16:49:12'), (133, '2003-12-16 11:47:36', 'CENT', 26.20, '2003-12-16 16:49:12'), (134, '2003-12-16 11:47:36', 'CLWY', 0.46, '2003-12-16 16:49:12'), (135, '2003-12-16 11:47:36', 'CNH', 15.37, '2003-12-16 16:49:12'), (136, '2003-12-16 11:47:36', 'DE', 63.92, '2003-12-16 16:49:13'), (137, '2003-12-16 11:47:36', 'DEVC', 7.12, '2003-12-16 16:49:13'), (138, '2003-12-16 11:47:36', 'DOW', 40.00, '2003-12-16 16:49:13'), (139, '2003-12-16 11:47:36', 'ERSN.PK', 0.00, '2003-12-16 16:49:14'), (140, '2003-12-16 11:47:36', 'F', 14.29, '2003-12-16 16:49:14'), (141, '2003-12-16 11:47:36', 'FBST', 6.59, '2003-12-16 16:49:14'), (142, '2003-12-16 11:47:36', 'FRK', 56.07, '2003-12-16 16:49:14'), (143, '2003-12-16 11:47:36', 'FSHOX', 33.74, '2003-12-16 16:49:15'), (144, '2003-12-16 11:47:36', 'GEHL', 12.47, '2003-12-16 16:49:15'), (145, '2003-12-16 11:47:36', 'GM', 49.48, '2003-12-16 16:49:15'), (146, '2003-12-16 11:47:36', 'GRIF', 14.35, '2003-12-16 16:49:16'), (147, '2003-12-16 11:47:36', 'GVA', 23.54, '2003-12-16 16:49:16'), (148, '2003-12-16 11:47:36', 'HAN', 34.25, '2003-12-16 16:49:17'), (149, '2003-12-16 11:47:36', 'HBP', 2.85, '2003-12-16 16:49:17'), (150, '2003-12-16 11:47:36', 'HD', 34.10, '2003-12-16 16:49:17'), (151, '2003-12-16 11:47:36', 'HORT', 4.52, '2003-12-16 16:49:17'), (152, '2003-12-16 11:47:36', 'JCTCF', 4.80, '2003-12-16 16:49:18'), (153, '2003-12-16 11:47:36', 'KNUR.OB', 0.19, '2003-12-16 16:49:18'), (154, '2003-12-16 11:47:36', 'LAF', 38.90, '2003-12-16 16:49:18'), (155, '2003-12-16 11:47:36', 'LMT', 48.98, '2003-12-16 16:49:18'), (156, '2003-12-16 11:47:36', 'LOW', 53.20, '2003-12-16 16:49:19'), (157, '2003-12-16 11:47:36', 'LSCO', 13.46, '2003-12-16 16:49:19'), (158, '2003-12-16 11:47:36', 'MHCO.PK', 1.60, '2003-12-16 16:49:19'), (159, '2003-12-16 11:47:36', 'MHP', 68.11, '2003-12-16 16:49:20'), (160, '2003-12-16 11:47:36', 'MKTAY', 9.55, '2003-12-16 16:49:20'), (161, '2003-12-16 11:47:36', 'MLM', 45.58, '2003-12-16 16:49:20'), (162, '2003-12-16 11:47:36', 'MRGO', 7.11, '2003-12-16 16:49:21'), (163, '2003-12-16 11:47:36', 'MVCO', 1.60, '2003-12-16 16:49:21'), (164, '2003-12-16 11:47:36', 'NEQS.PK', 0.05, '2003-12-16 16:49:21'), (165, '2003-12-16 11:47:36', 'NWL', 21.79, '2003-12-16 16:49:21'), (166, '2003-12-16 11:47:36', 'PHHM', 17.67, '2003-12-16 16:49:22'), (167, '2003-12-16 11:47:36', 'POOL', 31.92, '2003-12-16 16:49:22'), (168, '2003-12-16 11:47:36', 'RMIX', 6.25, '2003-12-16 16:49:22'), (169, '2003-12-16 11:47:36', 'SEHI', 2.19, '2003-12-16 16:49:22'), (170, '2003-12-16 11:47:36', 'SNA', 30.79, '2003-12-16 16:49:22'), (171, '2003-12-16 11:47:36', 'TECUA', 45.73, '2003-12-16 16:49:23'), (172, '2003-12-16 11:47:36', 'TII', 34.49, '2003-12-16 16:49:23'), (173, '2003-12-16 11:47:36', 'TSCO', 39.26, '2003-12-16 16:49:23'), (174, '2003-12-16 11:47:36', 'TTC', 46.15, '2003-12-16 16:49:23'), (175, '2003-12-16 11:47:36', 'URI', 18.74, '2003-12-16 16:49:24'), (176, '2003-12-16 11:47:36', 'USHG.OB', 0.55, '2003-12-16 16:49:24'), (177, '2003-12-16 11:47:36', 'VOLVY', 29.99, '2003-12-16 16:49:24'), (178, '2003-12-16 11:47:36', 'WIKS.OB', 0.35, '2003-12-16 16:49:24'), (179, '2003-12-16 11:47:36', 'WMSI', 4.07, '2003-12-16 16:49:25'), (180, '2003-12-16 11:47:36', 'WPEC.OB', 0.35, '2003-12-16 16:49:25'), (181, '2003-12-16 11:50:33', 'ACMTA', 11.65, '2003-12-16 16:52:06'), (182, '2003-12-16 11:50:33', 'ACO', 16.61, '2003-12-16 16:52:07'), (183, '2003-12-16 11:50:33', 'ADLTQ.OB', 0.31, '2003-12-16 16:52:07'), (184, '2003-12-16 11:50:33', 'AHH', 20.90, '2003-12-16 16:52:07'), (185, '2003-12-16 11:50:33', 'ALG', 15.20, '2003-12-16 16:52:07'), (186, '2003-12-16 11:50:33', 'AMN', 35.07, '2003-12-16 16:52:08'), (187, '2003-12-16 11:50:33', 'ARTW', 4.53, '2003-12-16 16:52:08'), (188, '2003-12-16 11:50:33', 'ASVI', 30.73, '2003-12-16 16:52:08'), (189, '2003-12-16 11:50:33', 'BZH', 99.99, '2003-12-16 16:52:08'), (190, '2003-12-16 11:50:33', 'CALC', 10.85, '2003-12-16 16:52:08'), (191, '2003-12-16 11:50:33', 'CAT', 80.35, '2003-12-16 16:52:09'), (192, '2003-12-16 11:50:33', 'CAV', 3.00, '2003-12-16 16:52:09'), (193, 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16:52:13'), (208, '2003-12-16 11:50:33', 'HAN', 34.25, '2003-12-16 16:52:13'), (209, '2003-12-16 11:50:33', 'HBP', 2.85, '2003-12-16 16:52:13'), (210, '2003-12-16 11:50:33', 'HD', 34.20, '2003-12-16 16:52:13'), (211, '2003-12-16 11:50:33', 'HORT', 4.52, '2003-12-16 16:52:14'), (212, '2003-12-16 11:50:33', 'JCTCF', 4.80, '2003-12-16 16:52:14'), (213, '2003-12-16 11:50:33', 'KNUR.OB', 0.20, '2003-12-16 16:52:14'), (214, '2003-12-16 11:50:33', 'LAF', 38.90, '2003-12-16 16:52:14'), (215, '2003-12-16 11:50:33', 'LMT', 48.96, '2003-12-16 16:52:15'), (216, '2003-12-16 11:50:33', 'LOW', 53.13, '2003-12-16 16:52:15'), (217, '2003-12-16 11:50:33', 'LSCO', 13.93, '2003-12-16 16:52:15'), (218, '2003-12-16 11:50:33', 'MHCO.PK', 1.60, '2003-12-16 16:52:15'), (219, '2003-12-16 11:50:33', 'MHP', 68.12, '2003-12-16 16:52:16'), (220, '2003-12-16 11:50:33', 'MKTAY', 9.55, '2003-12-16 16:52:16'), (221, '2003-12-16 11:50:33', 'MLM', 45.59, '2003-12-16 16:52:16'), (222, '2003-12-16 11:50:33', 'MRGO', 7.11, 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16:57:04'), (252, '2003-12-16 11:55:30', 'CAV', 3.00, '2003-12-16 16:57:04'), (253, '2003-12-16 11:55:30', 'CENT', 26.20, '2003-12-16 16:57:04'), (254, '2003-12-16 11:55:30', 'CLWY', 0.46, '2003-12-16 16:57:04'), (255, '2003-12-16 11:55:30', 'CNH', 15.34, '2003-12-16 16:57:04'), (256, '2003-12-16 11:55:30', 'DE', 63.86, '2003-12-16 16:57:05'), (257, '2003-12-16 11:55:30', 'DEVC', 7.12, '2003-12-16 16:57:05'), (258, '2003-12-16 11:55:30', 'DOW', 40.00, '2003-12-16 16:57:05'), (259, '2003-12-16 11:55:30', 'ERSN.PK', 0.00, '2003-12-16 16:57:05'), (260, '2003-12-16 11:55:30', 'F', 14.30, '2003-12-16 16:57:05'), (261, '2003-12-16 11:55:30', 'FBST', 6.59, '2003-12-16 16:57:05'), (262, '2003-12-16 11:55:30', 'FRK', 56.04, '2003-12-16 16:57:05'), (263, '2003-12-16 11:55:30', 'FSHOX', 33.74, '2003-12-16 16:57:05'), (264, '2003-12-16 11:55:30', 'GEHL', 12.47, '2003-12-16 16:57:05'), (265, '2003-12-16 11:55:30', 'GM', 49.48, '2003-12-16 16:57:06'), (266, '2003-12-16 11:55:30', 'GRIF', 14.35, 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'MLM', 45.56, '2003-12-16 16:57:08'), (282, '2003-12-16 11:55:30', 'MRGO', 7.11, '2003-12-16 16:57:08'), (283, '2003-12-16 11:55:30', 'MVCO', 1.60, '2003-12-16 16:57:08'), (284, '2003-12-16 11:55:30', 'NEQS.PK', 0.05, '2003-12-16 16:57:08'), (285, '2003-12-16 11:55:30', 'NWL', 21.70, '2003-12-16 16:57:08'), (286, '2003-12-16 11:55:30', 'PHHM', 17.67, '2003-12-16 16:57:08'), (287, '2003-12-16 11:55:30', 'POOL', 31.92, '2003-12-16 16:57:08'), (288, '2003-12-16 11:55:30', 'RMIX', 6.25, '2003-12-16 16:57:08'), (289, '2003-12-16 11:55:30', 'SEHI', 2.15, '2003-12-16 16:57:09'), (290, '2003-12-16 11:55:30', 'SNA', 30.79, '2003-12-16 16:57:09'), (291, '2003-12-16 11:55:30', 'TECUA', 45.95, '2003-12-16 16:57:09'), (292, '2003-12-16 11:55:30', 'TII', 34.50, '2003-12-16 16:57:09'), (293, '2003-12-16 11:55:30', 'TSCO', 39.27, '2003-12-16 16:57:09'), (294, '2003-12-16 11:55:30', 'TTC', 46.13, '2003-12-16 16:57:09');
I am using this query :
SELECT week( batchID ) Week, year( batchID ) Year, month( batchID )
MONTH , SUM( price ) WeekAvg, ticker,batchID,
WEEK(batchID,5) -
WEEK(DATE_SUB(batchID, INTERVAL DAYOFMONTH(batchID)-1 DAY),5)+1 as WeekNumber
FROM lcsi_new_entry
WHERE batchID >= '2015-01-1 00:00:00'
AND batchID <= '2015-03-30 00:00:00'
GROUP BY week( batchID ) , year( batchID ) ,ticker
ORDER BY `batchID` DESC
最佳答案
SELECT WEEKOFYEAR("2015-02-01"); // = 5
这为您提供了 2 月 1 日 (5) 在 2015 年的周数
SELECT WEEKOFYEAR("2015-02-19"); // = 8
这会为您提供 2 月 19 日 (8) 的周数 所以，2 月 19 日是 2015 年 2 月的第四周...
2 月 1 日是星期天。第 5 年一周的最后一天。 2 月 2 日是第 6 周……现在是第 4 周。只需进行这个小计算并加 1!
关于mysql - 通过Mysql计算一个月中的星期几，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28600852/