怎样设置mysql的表不区分你大写和小写

Linux上安装MySQL默认是数据库的表大写和小写敏感的。改动非常easy。仅仅要该一个mysql的配置文件就能够了。

mysql> show tables;

+--------------------------------------+

| Tables_in_cddl                       |

+--------------------------------------+

| a1_equipment                         |

| a1_equipment_batch                   |

| actionby                             |

| actionitem                           |

| actionitemcomments                   |

| actionitemdetail                     |

| actionitemstatus                     |

| cal_cost_element                     |

| cal_cost_element_stat                |

| cal_statistics                       |

| changeduedate                        |

| commisstionstartup                   |

| copq                                 |

| copq_category                        |

| costbreakdown                        |

| daily_statistic                      |

| dbstudy                              |

| dccddlist                            |

| define_cost_element                  |

| djpmomsactivity                      |

| drawing                              |

| dsystem_user                         |

| dtproperties                         |

| duser_rights                         |

| edcr                                 |

| edcr_2week                           |

| edcr_status                          |

| edcrchild                            |

| engineering_action_tracking          |

| engineering_action_tracking_analysis |

| fincostone                           |

| fincostonerpt                        |

| fincosttwo                           |

| fincosttworpt                        |

| fincostvariance                      |

| fincostvariancerpt                   |

| findataforchar                       |

| finemployee                          |

| finemployee20120910                  |

| finemployeehist                      |

| finemployeehistback                  |

| finexportone                         |

| finexporttwo                         |

| finheadcountone                      |

| finheadcountonerpt                   |

| finheadcounttwo                      |

| finheadcounttworpt                   |

| finheadcountvariance                 |

| finheadcountvariancerpt              |

| finhistversioncomment                |

| finposition                          |

| finpositionhist                      |

| finpositionhistback                  |

| finpositon20120910                   |

| flight                               |

| hotel                                |

| hrcontact                            |

| hy_temp                              |

| hyresponsetime                       |

| impacteddrawingnumber                |

| jpmo_temp                            |

| jpmoresponsetime                     |

| meeting                              |

| relatededcrnumber                    |

| responsibleperson                    |

| revisedscheduledate                  |

| sm_temp                              |

| smresponsetime                       |

| sparepart                            |

| sysconstraints                       |

| syssegments                          |

| systemparameter                      |

| table_1_7_1                          |

| table_1_7_2                          |

| table_1_7_3                          |

| table_1_7_3a                         |

| table_1_7_3b                         |

| table_1_7_3c                         |

| table_appendix28                     |

| trend                                |

| trenddetail                          |

| visitor                              |

| visitprogram                         |

| vp_engdeliverablesreport             |

+--------------------------------------+

84 rows in set (0.00 sec)

mysql> select count(*) from TREND;

ERROR 1146 (42S02): Table 'cddl.TREND' doesn't exist

从上面能够看出trend表是存在的，仅仅只是是小写的保存在数据库里。

让MYSQL不区分表名大写和小写的方法事实上非常easy：

1.用ROOT登录。改动/etc/my.cnf

2.在[mysqld]下增加一行：lower_case_table_names=1

3.又一次启动数据库就可以

[root@chicago init.d]# vi /etc/my.cnf

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

skip-grant-tables

lower_case_table_names=1

[root@chicago init.d]# service mysql restart

Shutting down MySQL..                                      [  OK  ]

Starting MySQL......................................       [  OK  ]

mysql> select count(*) from TREND;

+----------+

| count(*) |

+----------+

|       19 |

+----------+

1 row in set (0.00 sec)

mysql> select count(*) from trend;

+----------+

| count(*) |

+----------+

|       19 |

+----------+

1 row in set (0.00 sec)

从上面能够看出，此时已经不区分大写和小写了。