查看“Mysqldump”的源代码

=忽略多个表=
<pre>
tables=" tempData worldSceneCitys"

mysqldump -u root -p'xx' -h 127.0.0.1 --opt --default-character-set=utf8 --triggers -R --hex-blob --single-transaction --no-autocommit --master-data=2  ftsgqxz_12  ${tables[@]} > 1.sql


#对数据表进行过滤操作#
        tables=`/usr/local/services/mysql/bin/mysql -h ${gamedbip} -P${dbport} -u${users} -p${dbpass} $gamedbname -e "show tables" | grep -Ev '^m_|^Tables_in'`;

#从数据库导出到管理机指定目录
        mysqldump -h ${dbip} -P${dbport} -u${users} -p${dbpass} --opt --default-character-set=utf8 --triggers -R --hex-blob --single-transaction --no-autocommit --master-data=2  ${gamedbname} ${tables[@]} > ${backurl}/${gamedbname}/${gamedbname}_${backdatet}.sql;
</pre>



=--master-data选项=
<pre>
mysqldump --help
--master-data[=#]  This causes the binary log position and filename to be 
                      appended to the output. If equal to 1, will print it as a 
                      CHANGE MASTER command; if equal to 2, that command will 
                      be prefixed with a comment symbol. This option will turn 
                      --lock-all-tables on, unless --single-transaction is 
                      specified too (in which case a global read lock is only 
                      taken a short time at the beginning of the dump; don't 
                      forget to read about --single-transaction below). In all 
                      cases, any action on logs will happen at the exact moment 
                      of the dump. Option automatically turns --lock-tables 
                      off.

--master-data[=#]      在备份导出的文件里追加二进制binlog文件的位置和名称 
                        如果值等于1，就会添加一个CHANGE MASTER语句 
                        如果值等于2，就会在CHANGE MASTER语句前添加注释（不起作用了呗~） 
                        这个参数会--lock-all-tables锁表，除非你指定了--single-transaction 
                        这种情况下，锁表只会在dump开始的时候持续一小段时间,照理说 
                        在dump的时候，任何动作都会影响到binlog文件 
                        dump结束之后，选项会自动关闭锁表功能

　　--master-data选项的作用就是将二进制的信息写入到输出文件中，在这里是写入到备份的sql文件中

If the option value is 2, the CHANGE MASTER TO statement is written as an SQL comment, and thus is informative only; it has no effect when the dump file is reloaded. 

If the option value is 1, the statement is not written as a comment and takes effect when the dump file is reloaded. 

If no option value is specified, the default value is 1.

如果选项赋值为2，那么CHANGE MASTER TO 语句会被写成一个SQL comment（注释），从而只提供信息; 

如果选项赋值为1，那么语句不会被写成注释并且在dump被载入时生效。

如果没有指定，默认值为1。
</pre>
=troubleshooting=
== If you don't want to restore GTIDs, pass --set-gtid-purged=OFF. ==
<pre>
Warning: A partial dump from a server that has GTIDs will by default include the GTIDs of all transactions, even those that changed suppressed parts of the database. If you don't want to restore GTIDs, pass --set-gtid-purged=OFF. To make a complete dump, pass --all-databases --triggers --routines --events. 

mysqldump -uUsername -h xx.xx.xx.xx -P3306 DBname t_name --set-gtid-purged=off -p >t_name.sql(表名)

</pre>
[https://blog.csdn.net/Xun_Jia/article/details/80024422  mysql导出入关于gtid问题]

=导入=
导入不用写表名,只指定库名就行了

=see also =


=Reference =
[https://www.cnblogs.com/chuanzhang053/p/8710434.html mysqldump备份时，--master-data选项的作用是什么]

[https://www.cnblogs.com/wajika/p/6725344.html mysqldump详解之--master-data]

[https://www.cnblogs.com/stache/p/5836261.html mysqldump数据库备份还原详解]

[https://dev.mysql.com/doc/refman/8.0/en/mysqldump.html#mysqldump-option-examples dev.mysql.com  4.5.4 mysqldump — A Database Backup Program]

[https://blog.csdn.net/yzf279533105/article/details/125162013  mysqldump导出部分数据和其它选项]

[https://blog.51cto.com/jschu/1727786 mysqldump导出指定表和部分指定数据]

[https://www.cnblogs.com/chuanzhang053/p/8866618.html  mysqldump工具,通过--where选项,导出指定表中指定数据?]

[https://blog.csdn.net/qq_44336650/article/details/121853803  mysqldump where子句使用]

[https://blog.csdn.net/airfish20000/article/details/77677824  mysqldump的where条件的妙用]

[https://my.oschina.net/huzorro/blog/74132 MySQL mysqldump排除指定表]

[https://www.cnblogs.com/zengkefu/p/5690092.html mysqldump 使用 --set-gtid-purged]

[https://www.zengjunpeng.com/?id=198 mysqldump提示Warning: A partial dump from a server that has GTIDs]

[https://www.cnblogs.com/chenmh/p/5300370.html MySQL mysqldump数据导出详解]

[https://blog.51cto.com/u_15127526/4379949  MySQL 8.MySQL数据库导入、导出和授权]

[https://blog.51cto.com/u_15067247/4037586  mysqldump导出数据时，某些表不导出，排除某些表，不导出某些表]


[https://www.runoob.com/mysql/mysql-database-export.html MySQL 导出数据]

[https://www.computerhope.com/unix/mysqldum.htm Linux mysqldump command]

==mysql导出导入大量数据 ==

[https://www.cnblogs.com/ITtangtang/p/7612237.html  数据仓库：Mysql大量数据快速导出 ]

https://www.jianshu.com/p/6761e10d9fb3
[[category:mysql]]