如何設定mysql的表不區分你大小寫

2021-12-30 13:15:48 字數 3427 閱讀 6700

linux上安裝mysql預設是資料庫的表大小寫敏感的。修改很簡單,只要該乙個mysql的配置檔案就可以了。

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

從上面可以看出trend表是存在的,只不過是小寫的儲存在資料庫裡。

讓mysql不區分表名大小寫的方法其實很簡單:

1.用root登入,修改/etc/my.cnf

2.在[mysqld]下加入一行:lower_case_table_names=1

3.重新啟動資料庫即可

[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)

從上面可以看出,此時已經不區分大小寫了。

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