mysql导数有条件的_mysql 导数遇到的问题

第一篇关于mysql的文章,留个纪念

1,使用mysqldump时报错(1064),这个是因为mysqldump版本太低与当前数据库版本不一致导致的。

mysqldump: Couldn't execute 'SET OPTION SQL_QUOTE_SHOW_CREATE=1': You have an error in your SQL syntax; check the manual that

corresponds to your MySQL server version for the right syntax to use near 'OPTION SQL_QUOTE_SHOW_CREATE=1' at line 1 (1064)

[[email protected] 18:12:30 ~/xionglang]

$mysqldump --version

mysqldump  Ver 10.13 Distrib 5.1.61, for redhat-linux-gnu (x86_64)

$mysql -uroot --socket=/wls/mysql/run/mysql.sock --port=3322

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 47281134

Server version: 5.6.14-enterprise-commercial-advanced-log MySQL Enterprise Server - Advanced Edition (Commercial)

这样的话必须知道mysqldump的绝对路径,在mysql的安装目录下有。

2,导出时指定字符集,报错Character set 'utf-8' is not a compiled character set and is not specifie .

--default-character-set=utf-8

这个是因为字符集错了。是--default-character-set=utf8

3,导出时提示warning,A partial dump from a server that has GTIDs

$/wls/mysql/bin/mysqldump -uroot --socket=/wls/mysql/run/mysql.sock --default-character-set=utf8  --port=3309 hm_stg ofmucroom>exptab1_hm_stg_3309.sql

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.

关于GTID是5.6以后,加入了全局事务 ID (GTID) 来强化数据库的主备一致性,故障恢复,以及容错能力。

官方给的:A global transaction identifier (GTID) is a unique identifier created and associated with each transaction committed on the server of origin (master).

所以可能是因为在一个数据库里面唯一,但是当导入其他的库就有可能重复。所有会有一个提醒。

可以通过添加--set-gtid-purged=off  或者–gtid-mode=OFF这两个参数设置。

个人认为是在导入库中重新生产GTID,而不用原来的。

4,导出的命令

/wls/mysql/bin/mysqldump -uroot --socket=/wls/mysql/run/mysql.sock --port=3309 --set-gtid-purged=OFF hm_stg ofmucroom ofmucmember ofmucaffiliation>exptab1_hm_stg_3309.sql

hm_stg为导出的database,如果前面加-d表示只导出database或者table的结构

5,导入

进入相应的database

source exptab1_hm_stg_3309.sql

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