*_bin: 表示的是binary case sensitive collation,也就是说是区分大小写。 *_ci: case insensitive collation,不区分大小写。 ④ 如果建表时校对规则未用*_bin,则可直接修改字段的属性。 altertabletest3 modify namevarchar(20) collate utf8_bin; 四、总结 只要在创建...
*_bin: 表示的是binary case sensitive collation,也就是说是区分大小写。 *_ci: case insensitive collation,不区分大小写。 示例如下: mysql> CREATE TABLE Test1(Id int ,Name VARCHAR(20) COLLATE utf8mb4_bin ); mysql> INSERT INTO Test1(id,name) VALUES(2,'Bb'); #查询 mysql> SELECT id,name...
You can specify case sensitivity for table names when creating an instance on the console or using APIs. It cannot be changed after the instance is created.Set Table Name
但是今天试了5.7好几次,5.6.27的也试过,发现只要加上这个配置,mysql就启动报错,后来试了一下mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server 5.6\my.ini" 爆出了这个问题 (The server option 'lower_case_table_names' is configured to use case sensitive table names but the data directory...
Reporter:Axel SchwenkeEmail Updates: Status:VerifiedImpact on me: None Category:MySQL Server: Information schemaSeverity:S4 (Feature request) Version:5.5.6OS:Any Assigned to:CPU Architecture:Any [24 Sep 2010 15:45] Axel Schwenke Description:Table names in performance_schema are case sensitive, but...
CaseInsensitiveCaseSensitiveWindowsCaseSensitive 在状态图中,初始状态是大小写不敏感,当lower_case_table_names的值为1时进入大小写不敏感的状态;当lower_case_table_names的值为2时,进入大小写敏感的状态;对于Windows系统,即使值为2,也会被强制转换为小写。
altertabletestcase MODIFY namevarchar(60)COLLATEutf8_general_ci ;selectnamefromtestcase ; altertabletestcase MODIFY namevarchar(60)COLLATEutf8_bin;selectnamefromtestcase ; 使用xx_cs(case sensitive) 的字符集。 **目前mysql5.7 不支持。 **
case sensitive:大小写敏感,简称cs case insensitive:大小写不敏感,简称ci 法0:建库时指定CHARSET和COLLATE CREATEDATABASEdbNameDEFAULTCHARSETutf8mb4COLLATEutf8mb4_bin;-- 以下为数据库创建用户并授权-- 创建用户createuser'userName'@'%'IDENTIFIEDBY'123456';-- 切换数据库usedbName;-- 授权用户权限grantallon...
Notice:Column, index, stored routine, and event names are not case sensitive on any platform, nor are column aliases. 下面在测试环境为Red Hat Enterprise Linux Server release 5.7, MySQL 5.6.20: mysql>showvariableslike'lower_case_table_names'; ...
Tags:Table Name Case Sensitive Sensitivity Windows Store Created [8 Mar 2010 15:56] Bob Hansen Description:Just upgraded from 5.1.40 to 5.1.44 and still same behavior. Here's the situation. I'm creating tables like other tables, and they are being created lower case, even though I specifi...