關於查詢欄位內容無法區分大小寫問題
root@localhost 20:32: [pwb_inn]> select * from sys_account_login where corp_code='TEST';
+----+------------+------------+----------------------------------+-------------+--------------------------+--------+-----------+----------+------+--------+-------------+----------------+---------------------+------------------+---------+-----------------+----------+---------------------+---------------------+---------+-----------+
| ID | ACCOUNT_ID | LOGIN_NAME | LOGIN_PASS | REALNAME | EMAIL | STATUS | USER_TYPE | BIRTHDAY | SEX | REMARK | LOGIN_COUNT | LAST_IP | LAST_LOGIN_TIME | MOBILE | ID_CARD | CREATE_LOGIN_ID | GROUP_ID | CREATE_TIME | MODIFIED_TIME | DELETED | CORP_CODE |
+----+------------+------------+----------------------------------+-------------+--------------------------+--------+-----------+----------+------+--------+-------------+----------------+---------------------+------------------+---------+-----------------+----------+---------------------+---------------------+---------+-----------+
| 0 | 1 | admin | 9db06bcff9248837f86d1a6bcf41c9e7 | lwwww122211 | xxxxx.qq.1111 | 1 | 0 | NULL | NULL | NULL | 555 | 192.168.60.197 | 2017-06-01 20:27:37 | 1300000000012222 | NULL | NULL | NULL | 2015-03-30 19:52:25 | 2017-06-01 20:27:40 | 0 | test |
| 18 | NULL | wangcx | 9db06bcff9248837f86d1a6bcf41c9e7 | wangcx1 | chixu.wang@zhiyoubao.com | 1 | 2 | NULL | 0 | NULL | NULL | | NULL | 13000000000 | | NULL | NULL | 2017-05-18 14:36:24 | 2017-05-18 15:06:55 | 1 | test |
| 19 | 1 | 11 | 28c8edde3d61a0411511d3b1866f0636 | 12 | 12 | 1 | 2 | NULL | 0 | NULL | NULL | | NULL | 12 | | NULL | NULL | 2017-05-18 14:50:58 | 2017-05-18 15:06:55 | 1 | test |
| 20 | 1 | 3 | 38026ed22fc1a91d92b5d2ef93540f20 | 3 | 3 | 1 | 2 | NULL | 0 | NULL | NULL | | NULL | 3 | | NULL | NULL | 2017-05-18 14:52:38 | 2017-05-18 15:06:55 | 1 | test |
| 21 | 1 | 1111112 | 3ed80171b1f4ab825f2038fc203c887c | 1 | 1 | 1 | 2 | NULL | 0 | NULL | NULL | | NULL | 1 | | NULL | NULL | 2017-05-18 14:56:31 | 2017-05-18 15:06:55 | 1 | test |
| 22 | 1 | wangcx222 | 63ee451939ed580ef3c4b6f0109d1fd0 | 211111 | | 1 | 2 | NULL | 0 | NULL | NULL | | NULL | | | NULL | NULL | 2017-05-18 15:32:54 | 2017-05-18 15:34:25 | 1 | test |
| 23 | 1 | wangcx | 14e1b600b1fd579f47433b88e8d85291 | wangcx | | 1 | 2 | NULL | 0 | NULL | 1 | 192.168.60.197 | 2017-05-27 10:03:13 | | | NULL | NULL | 2017-05-27 10:02:47 | 2017-05-27 10:03:23 | 0 | test |
| 24 | 1 | wangqq | 9db06bcff9248837f86d1a6bcf41c9e7 | 王強強 | 451766647@qq.com | 1 | 2 | NULL | 0 | NULL | NULL | | NULL | 13639887172 | | NULL | NULL | 2017-05-31 09:40:56 | 2017-05-31 10:36:49 | 1 | test |
| 25 | 1 | wangqq | 9db06bcff9248837f86d1a6bcf41c9e7 | 王強強 | | 0 | 2 | NULL | 0 | NULL | 5 | 192.168.60.103 | 2017-05-31 16:46:49 | 13632145698 | | NULL | NULL | 2017-05-31 10:37:25 | 2017-05-31 16:59:42 | 1 | test |
| 26 | 1 | wangqq | 9db06bcff9248837f86d1a6bcf41c9e7 | wangqq | | 1 | 2 | NULL | 0 | NULL | 8 | 192.168.60.103 | 2017-06-01 10:37:46 | | | NULL | NULL | 2017-06-01 09:33:22 | 2017-06-01 10:37:50 | 0 | test |
查詢大寫但是小寫也顯示
懷疑字符集問題
root@localhost 20:29: [pwb_inn]> show create table sys_account_login \G
*************************** 1. row ***************************
Table: sys_account_login
Create Table: CREATE TABLE `sys_account_login` (
`ID` varchar(20) NOT NULL COMMENT 'SEQENCE',
`ACCOUNT_ID` varchar(20) DEFAULT NULL COMMENT '賬戶資訊主鍵',
`LOGIN_NAME` varchar(128) DEFAULT NULL COMMENT '登入名',
`LOGIN_PASS` varchar(128) DEFAULT NULL COMMENT '登入密碼',
`REALNAME` varchar(128) DEFAULT NULL COMMENT '真實姓名',
`EMAIL` varchar(128) DEFAULT NULL COMMENT '電子郵件',
`STATUS` varchar(64) DEFAULT '' COMMENT '使用者狀態 0:鎖定1:正常\r\n ',
`USER_TYPE` varchar(16) NOT NULL DEFAULT '0' COMMENT '使用者型別:1深大客服2客棧管理員3客棧操作員(二期改動後,只有型別2,即供應商登入,0是企業主賬戶,無法刪除)',
`BIRTHDAY` datetime DEFAULT NULL COMMENT '生日 yyyy-MM-dd',
`SEX` varchar(16) DEFAULT '0' COMMENT '1男，0女',
`REMARK` varchar(1024) DEFAULT NULL COMMENT '備註',
`LOGIN_COUNT` varchar(20) DEFAULT NULL COMMENT '登入次數每次登入+1',
`LAST_IP` varchar(64) DEFAULT '' COMMENT '最後登入IP',
`LAST_LOGIN_TIME` datetime DEFAULT NULL COMMENT '最後登入時間',
`MOBILE` varchar(64) DEFAULT '' COMMENT '手機號',
`ID_CARD` varchar(64) DEFAULT '' COMMENT '身份證號',
`CREATE_LOGIN_ID` varchar(20) DEFAULT NULL COMMENT '使用者建立人',
`GROUP_ID` varchar(20) DEFAULT NULL,
`CREATE_TIME` datetime DEFAULT NULL COMMENT '建立時間',
`MODIFIED_TIME` datetime DEFAULT NULL COMMENT '修改時間',
`DELETED` smallint(6) NOT NULL DEFAULT '0' COMMENT '刪除標誌 0:未刪除 1:已刪除',
`CORP_CODE` varchar(32) NOT NULL COMMENT '企業碼(二期)',
PRIMARY KEY (`ID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
1 row in set (0.00 sec)

最後查詢是字符集校對問題
Mysql collate規則：

*_bin: 表示的是binary case sensitive collation，也就是說是區分大小寫的
*_cs: case sensitive collation，區分大小寫
*_ci: case insensitive collation，不區分大小寫

修改校對規則
root@localhost 20:44: [pwb_inn]> ALTER TABLE sys_account_login CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_cs;
ERROR 1273 (HY000): Unknown collation: 'utf8_general_cs'
5.6不支援utf8_general_cs
root@localhost 20:44: [pwb_inn]> ALTER TABLE sys_account_login CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
Query OK, 0 rows affected (0.01 sec)
Records: 0 Duplicates: 0 Warnings: 0

root@localhost 20:44: [pwb_inn]> ALTER TABLE sys_account_login CONVERT TO CHARACTER SET utf8 COLLATE utf8_bin;
Query OK, 17 rows affected (0.01 sec)
Records: 17 Duplicates: 0 Warnings: 0

root@localhost 20:45: [pwb_inn]> select * from sys_account_login where corp_code='TEST';
Empty set (0.00 sec)

mysql查詢欄位內容無法區分大小寫問題

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