Home > Database > Mysql Tutorial > Mysql导入大容量SQL文件数据问题_MySQL

Mysql导入大容量SQL文件数据问题_MySQL

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-06-01 13:42:12
Original
1100 people have browsed it

bitsCN.com mysql在通过导入sql文件可能会出现下面二个问题: 1.如果sql文件过大,会出现"MySQL server has gone away"问题;
 2.如果sql文件数据有中文,会出现乱码     解决问题: 问题1:出现MySQL server has gone away"问题,是因为mysql默认的"max_allowed_packet"变量值过小.查看目前配置
 show VARIABLES like '%max_allowed_packet%';
 显示的结果为: +--------------------+---------+| Variable_name      | Value   |+--------------------+---------+| max_allowed_packet | 1048576 |+--------------------+---------+
 说明目前的配置是:1048576/1024/1024 = 1M 修改max_allowed_packet值:
 方法1: SET GLOBAL max_allowed_packet = 500*1024*1024;(经测试无效)
 方法2: 直接修改配置文件,重启mysql                 windows中修改my.ini文件,在linux中修改my.cnf文件.             C:/Documents and Settings/All Users/Application Data/MySQL/MySQL Server 5.5/my.ini(安装mysql时的,指定的数据文件目录)             
Mysql导入大容量SQL文件数据问题_MySQL
             重启mysql后,在查看修改后的max_allowed_packet值             Mysql导入大容量SQL文件数据问题_MySQL
 问题2:登录时指定字符集编码            mysql -uroot -P3308 -p123456  - -default-character-set=utf8  (-P是指指定端口号)            Mysql导入大容量SQL文件数据问题_MySQL          最后通过source命令 即可成功导入:              source  E:ydj/test.sql
    Mysql导入大容量SQL文件数据问题_MySQL             作者 LoveJavaYDJ bitsCN.com

Related labels:
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Issues
sql file
From 1970-01-01 08:00:00
0
0
0
php - Overhead of prepare vs sql?
From 1970-01-01 08:00:00
0
0
0
Print sql statement
From 1970-01-01 08:00:00
0
0
0
Pass array to SQL insert query using PHP
From 1970-01-01 08:00:00
0
0
0
sql optimization or
From 1970-01-01 08:00:00
0
0
0
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template