<character set>_bin 例如: utf8_danish_ci ci是case insensitive的缩写,cs是case sensitive的缩写。即,指定大小写是否敏感。 utf8_bin是将字符串中的每一个字符用二进制数据存储,区分大小写。 奇怪的是utf8字符集对应的collation居然没有一个是cs的。 那么utf8_general_ci,utf8_unicode_ci,utf8_danish_ci有...
DEFAULT CHARACTER SET utf8:数据库字符集。设置数据库的默认编码为utf8,utf8中间不要"-"; COLLATE utf8_general_ci:数据库校对规则。ci是case insensitive的缩写,意思是大小写不敏感;相对的是cs,即case sensitive,大小写敏感;还有一种是utf8_bin,是将字符串中的每一个字符用二进制数据存储,区分大小写。 如果...
The original specification allowed for sequences of up to six bytes covering numbers up to 31 bits (the original limit of the universal character set). However, UTF-8 was restricted by RFC 3629 to use only the area covered by the formal Unicode definition, U+0000 to U+10FFFF, in Novembe...
The original specification allowed for sequences of up to six bytes covering numbers up to 31 bits (the original limit of the universal character set). However, UTF-8 was restricted by RFC 3629 to use only the area covered by the formal Unicode definition, U+0000 to U+10FFFF, in Novembe...
DEFAULT CHARACTER SET utf8 : 代表的是将该库的默认编码格式设置为utf8格式。 COLLATE utf8_general_ci : 代表的是数据库校对规则,utf8_bin将字符串中的每一个字符用二进制数据存储,区分大小写。utf8_genera_ci不区分大小写,ci为case insensitive的缩写,即大小写不敏感。utf8_general_cs区分大小写,cs为case...
ERROR 2019 (HY000): Can't initialize character set utf-8 (path: /usr/share/mysql/charsets/) 1. 2. 3. 4. 5. 修改my.cnf文件 root@96f1910989d5:/usr/share/mysql/charsets# exit exit [root@iZ2vc8owmlobwkazif1efpZ conf]# cd /mydata/mysql/conf/ ...
解析DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci 在创建数据库的时候,经常用到一句:CREATE DATABASE2.1DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci。 CREATE DATABASE2.1:创建数据库tpcms。在命令行里创建的时候,`要用键盘Esc下的那个,1旁边那个,而不是单引号,否则出错; ...
In MySQL connector 8.0.30, utf8 character set is renamed to utf8mb3, and utf8 now is an alias for utf8mb4. Try this just in case: import mysql.connector mydb = mysql.connector.MySQLConnection( host="localhost", user="veensew", password="%T5687j5IiYe", charset="utf8mb3" )...
在显示 utf8中文数据时会乱码,但是你用cmd告诉MySQL服务器器我使用的是GBK,你要给我返回GBK数据就可以正常显示了,如下图。这也是为什么PHP,Java,Python等编程连接数据库时都要指定数据库的结果集。 2 使用命令设置character_set 使用命令设置可以实现,但是当数据库重启时,失效。
3、如果既不指定character set 也不指定 collater 则使用数据库默认 two、指定字符集和校对在列的范围 -- 对一个表以及一个特定的列指定了character set 和 collatemysql>createtableobgestu.obge_table->(->columnsint,->column1varchar(10),->column2varchar(10)charactersetutf8collateutf8_general_ci->)defa...