Mysql大小写敏感的问题_MySQL
一、1 CREATE TABLE NAME(name VARCHAR(10));
对这个表,缺省情况下,下面两个查询的结果是一样的:
代码如下:
SELECT * FROM TABLE NAME WHERE name='clip';
SELECT * FROM TABLE NAME WHERE name='Clip';
MySql默认查询是不区分大小写的,如果需要区分他,必须在建表的时候,Binary标示敏感的属性.
代码如下:
CREATE TABLE NAME(
name VARCHAR(10) BINARY
);
2 在SQL语句中实现 SELECT * FROM TABLE NAME WHERE BINARY name='Clip';
3 设置字符集:
utf8_general_ci --不区分大小写
utf8_bin--区分大小写
二、 MySQL在windows下是不区分大小写的,将script文件导入MySQL后表名也会自动转化为小写,结果再 想要将数据库导出放到linux服务器中使用时就出错了。因为在linux下表名区分大小写而找不到表,查了很多都是说在linux下更改MySQL的设置使其也不区分大小写,但是有没有办法反过来让windows 下大小写敏感呢。其实方法是一样的,相应的更改windows中MySQL的设置就行了。
具体操作:
在MySQL的配置文件my.ini中增加一行:
lower_case_table_names = 0
其中 0:区分大小写,1:不区分大小写
MySQL在Linux下数据库名、表名、列名、别名大小写规则是这样的:
1、数据库名与表名是严格区分大小写的;
2、表的别名是严格区分大小写的;
3、列名与列的别名在所有的情况下均是忽略大小写的;
4、变量名也是严格区分大小写的; MySQL在Windows下都不区分大小写
以上就是本文的全部内容了,希望大家能够喜欢。

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