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mysql导入导出表结构及表数据及执行sql文件_MySQL

Jun 01, 2016 pm 01:35 PM
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mysql导入导出表结构及表数据及执行sql文件

 

在mysql中执行sql文件的命令 : source  d:/myprogram/database/db.sql;

连接MYSQL: 

mysql -h主机地址 -u用户名 -p用户密码

修改密码:

 mysqladmin -u用户名 -p旧密码 password 新密码

从数据库导出数据库文件:

 

1.将数据库mydb导出到e:/MySQL/mydb.sql文件中:

 

打开开始->运行->输入cmd 进入命令行模式

 

c:/>MySQLdump -h localhost -u root -p mydb >e:/MySQL/mydb.sql 

然后输入密码,等待一会导出就成功了,可以到目标文件中检查是否成功。

 

2.将数据库mydb中的mytable导出到e:/MySQL/mytable.sql文件中:

 

c:/>MySQLdump -h localhost -u root -p mydb mytable>e:/MySQL/mytable.sql 

3.将数据库mydb的结构导出到e:/MySQL/mydb_stru.sql文件中:

 

c:/>MySQLdump -h localhost -u root -p mydb --add-drop-table >e:/MySQL/mydb_stru.sql 

-h localhost可以省略,其一般在虚拟主机上用

 

四.从外部文件MySQL导入数据到数据库中:

 

从e:/MySQL/mydb2.sql中将文件中的SQL语句导入数据库中:

 

1.从命令行进入MySQL,然后用命令CREATE DATABASE mydb2;创建数据库mydb2。

 

2.退出MySQL 可以输入命令exit;或者quit;

 

3.在CMD中输入下列命令:

 

c:/>MySQL -h localhost -u root -p mydb2

然后输入密码,就OK了。

 

五.下面谈一下关于导入文件大小限制问题的解决:

 

默认情况下:MySQL导入文件大小有限制的,最大为2M,所以当文件很大时候,直接无法导入,下面就这个问题的解决列举如下:

 

1.在php.ini中修改相关参数:

 

影响MySQL导入文件大小的参数有三个:

 

memory_limit=128M,upload_max_filesize=2M,post_max_size=8M 

修改upload_ ......

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