mysql导入导出表结构及表数据及执行sql文件_MySQL
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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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