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MySQL数据库备份和还原的常用命令小结

WBOY
WBOYOriginal
2016-06-07 18:06:591144browse

MySQL数据库备份和还原的常用命令小结,学习mysql的朋友可以参考下

备份MySQL数据库的命令

mysqldump -hhostname -uusername -ppassword databasename > backupfile.sql

备份MySQL数据库为带删除表的格式备份MySQL数据库为带删除表的格式,能够让该备份覆盖已有数据库而不需要手动删除原有数据库。

mysqldump ---add-drop-table -uusername -ppassword databasename > backupfile.sql

直接将MySQL数据库压缩备份

mysqldump -hhostname -uusername -ppassword databasename | gzip > backupfile.sql.gz

备份MySQL数据库某个(些)表

mysqldump -hhostname -uusername -ppassword databasename specific_table1 specific_table2 > backupfile.sql

同时备份多个MySQL数据库

mysqldump -hhostname -uusername -ppassword --databases databasename1 databasename2 databasename3 > multibackupfile.sql

仅仅备份数据库结构

mysqldump --no-data --databases databasename1 databasename2 databasename3 > structurebackupfile.sql

备份服务器上所有数据库

mysqldump --all-databases  allbackupfile.sql

还原MySQL数据库的命令

mysql -hhostname -uusername -ppassword databasename 
<p><strong>还原压缩的MySQL数据库</strong></p>

<pre class="brush:php;toolbar:false">gunzip 
<p><strong>将数据库转移到新服务器</strong></p>

<pre class="brush:php;toolbar:false">mysqldump \-uusername \-ppassword databasename \| mysql \--host=*.*.*.\* \-C databasename

压缩备份

备份并用gzip压缩:

mysqldump  | gzip > outputfile.sql.gz

从gzip备份恢复:

gunzip 

备份并用bzip压缩:

mysqldump  | bzip2 > outputfile.sql.bz2

从bzip2备份恢复:

bunzip2  
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