


The example in this article describes the solution to the problem of Chinese garbled characters when MySQL imports SQL scripts from the command line. Share it with everyone for your reference, the details are as follows:
Open the script in the graphical interface management tool MySql Query Browser (the script includes database creation, table creation, and data addition) and execute it without any problems; however, when using the mysql command line tool to execute the database creation script, if Contains Chinese characters, and the stored data is garbled or ???. . .
Solution 1: Find my.ini in the MySql installation directory, Change the default-character-set=latin1 under [mysql] to default-character-set=utf8, save, and then restart the MySql service You can successfully import from the command line. The disadvantage is that the user's computer may not be configured during deployment, so method one is useless. . .
Solution 2:Add a line set character set utf8; at the beginning of the database script file, add default character set utf8; after the library name, add default charset =utf8; after the table), and add it before adding data One line set character set utf8; will do the trick.
Note: The MYSQL version I use is 5.1.
set character set utf8; drop database if exists 库名 create database 库名 DEFAULT CHARACTER SET utf8; use 库名; /*==============================================================*/ /* Table: 表名 */ /*==============================================================*/ drop table if exists 表名; create table 表名 ( PID int AUTO_INCREMENT, PName nvarchar(20) null, Remark nvarchar(50) null, constraint PK_POSITION primary key (PID) )DEFAULT CHARSET=utf8; /*=====================================================*/ /*添加数据*/ /*=====================================================*/ set character set utf8; insert 表名(PName,Remark) values ('1,''); insert 表名(PName,Remark) values ('2,'');
Readers who are interested in more MySQL-related content can check out the special topics on this site: "Summary of MySQL Index Operation Skills", "Comprehensive Collection of MySQL Log Operation Skills", "Summary of MySQL Transaction Operation Skills", "Comprehensive Collection of MySQL Stored Procedure Skills", " Summary of MySQL database lock related skills" and "Summary of commonly used MySQL functions"
I hope this article will be helpful to everyone’s MySQL database planning.

本篇文章给大家带来了关于mysql的相关知识,其中主要介绍了关于架构原理的相关内容,MySQL Server架构自顶向下大致可以分网络连接层、服务层、存储引擎层和系统文件层,下面一起来看一下,希望对大家有帮助。

在mysql中,可以利用char()和REPLACE()函数来替换换行符;REPLACE()函数可以用新字符串替换列中的换行符,而换行符可使用“char(13)”来表示,语法为“replace(字段名,char(13),'新字符串') ”。

方法:1、利用right函数,语法为“update 表名 set 指定字段 = right(指定字段, length(指定字段)-1)...”;2、利用substring函数,语法为“select substring(指定字段,2)..”。

mysql的msi与zip版本的区别:1、zip包含的安装程序是一种主动安装,而msi包含的是被installer所用的安装文件以提交请求的方式安装;2、zip是一种数据压缩和文档存储的文件格式,msi是微软格式的安装包。

转换方法:1、利用cast函数,语法“select * from 表名 order by cast(字段名 as SIGNED)”;2、利用“select * from 表名 order by CONVERT(字段名,SIGNED)”语句。

本篇文章给大家带来了关于mysql的相关知识,其中主要介绍了关于MySQL复制技术的相关问题,包括了异步复制、半同步复制等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于mysql的相关知识,其中主要介绍了mysql高级篇的一些问题,包括了索引是什么、索引底层实现等等问题,下面一起来看一下,希望对大家有帮助。

在mysql中,可以利用REGEXP运算符判断数据是否是数字类型,语法为“String REGEXP '[^0-9.]'”;该运算符是正则表达式的缩写,若数据字符中含有数字时,返回的结果是true,反之返回的结果是false。


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