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@ -1,4 +1,5 @@
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云数据库 RDS
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## 云数据库 RDS
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4.07GB
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5.7
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hins25487844_data_20240730052418_qp.xb
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@ -10,55 +11,91 @@ cd /usr/local
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因为备份文件太大，无法使用rz -be,所以选择sftp上传 hins25487844_data_20240730052418_qp.xb
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#### 解包
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## 解包
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```
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mkdir /var/mysql_bkdata/ -p
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cat hins25487844_data_20240730052418_qp.xb | xbstream -x -v -C /var/mysql_bkdata/
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## 解压
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innobackupex --decompress --remove-original /var/mysql_bkdata/
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```
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# 恢复前准备
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#### 恢复前准备
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```
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innobackupex --defaults-file=/var/mysql_bkdata/backup-my.cnf --apply-log /var/mysql_bkdata/
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```
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# 编辑数据库配置文件
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#### 编辑数据库配置文件
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```
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mkdir /var/mysql_newdata -p
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vi /etc/my.cnf
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# 修改
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datadir = /var/mysql_newdata
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```
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############重要########################
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# 参数innodb_undo_tablespaces的取值需要与/var/mysql_bkdata/backup-my.cnf中的取值相同，您可以使用下面的命令来查询。
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**参数innodb_undo_tablespaces的取值需要与/var/mysql_bkdata/backup-my.cnf中的取值相同，您可以使用下面的命令来查询。**
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```
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cat /var/mysql_bkdata/backup-my.cnf | grep innodb_undo_tablespaces
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```
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# 添加
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# 这个值不是乱写的，是根据上面的查询命令获取到的
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#### 添加
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>这个值不是乱写的，是根据上面的查询命令获取到的
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```
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[mysqld]
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innodb_undo_tablespaces=0
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innodb_undo_directory= /var/mysql_newdata
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```
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# 恢复数据
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#### 恢复数据
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```
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innobackupex --defaults-file=/etc/my.cnf --copy-back /var/mysql_bkdata/
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```
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### 修改
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#### 修改
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```
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vi /etc/my.cnf
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# 增加
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```
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#### 增加
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```
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[mysqld]
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lower_case_table_names=1
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```
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# 授权
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#### 授权
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```
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chown -R mysql:mysql /var/mysql_newdata
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```
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# 启动
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#### 启动
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```
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mysqld --defaults-file=/etc/my.cnf --user=mysql --datadir=/var/mysql_newdata &
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```
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------------------------------------------------------------------------------------------------------------
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# 重置密码
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#### 重置密码
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```
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/etc/init.d/mysqld stop
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mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
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@ -74,10 +111,17 @@ exit
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/etc/init.d/mysqld restart
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mysql -uroot -pDsideaL147258369
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```
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> Mysql5.7修改用户密码，报错“Unknown trigger has an error in its body: ‘Unknown system variable ‘maintain_user”
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# Mysql5.7修改用户密码，报错“Unknown trigger has an error in its body: ‘Unknown system variable ‘maintain_user”
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https://www.cnblogs.com/perfectCats/p/17979389
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> https://www.cnblogs.com/perfectCats/p/17979389
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```
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mysql> select trigger_schema,trigger_name from information_schema.triggers;
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+----------------+----------------------------+
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| trigger_schema | trigger_name |
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@ -94,16 +138,25 @@ Query OK, 0 rows affected (0.02 sec)
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[root@RockyLinux local]# mv /var/mysql_newdata/mysql/user.TRG /var/mysql_newdata/mysql/user.TRG.back
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[root@RockyLinux local]# mv /var/mysql_newdata/mysql/proxies_priv.TRG /var/mysql_newdata/mysql/proxies_priv.TRG.back
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```
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# MySQL SQL报错-ERROR 1105 (HY000): Unknown error-存储过程/事件
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https://www.modb.pro/db/518258
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>MySQL SQL报错-ERROR 1105 (HY000): Unknown error-存储过程/事件
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> https://www.modb.pro/db/518258
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```
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# Mysql ERROR 1067: Invalid default value for 字段
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https://blog.csdn.net/qq_26245325/article/details/78916363
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use mysql;
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ALTER TABLE `mysql`.`proc` ENGINE = MyISAM;
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ALTER TABLE `mysql`.`event` ENGINE = MyISAM;
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ALTER TABLE `mysql`.`func` ENGINE = MyISAM;
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```
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alter table `mysql`.`event` ENGINE = MyISAM;
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alter table `mysql`.`func` ENGINE = MyISAM;
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