Problem description When I execute DDL statements on my ApsaraDB RDS for MySQL instance,the following error message appears:Duplicate entry"."for key"."Causes When you perform DDL operations,such as index creation and ...
Problem description When I execute DDL statements on my ApsaraDB RDS for MySQL instance,the following error message appears:Duplicate entry"."for key"."Causes When you perform DDL operations,such as index creation and ...
Problem description When I replicate data from a primary ApsaraDB RDS for MySQL instance to its secondary or read-only RDS instance,the replication is interrupted and the following error message is displayed:[ERROR][MY-...
Problem description When I replicate data from a primary ApsaraDB RDS for MySQL instance to its secondary or read-only RDS instance,the replication is interrupted and the following error message is displayed:[ERROR][MY-...
Problem description The following error is reported when the TIMESTAMP field of a table in an ApsaraDB RDS for MySQL database is modified,or this field is configured during the creation of a table in an ApsaraDB RDS for ...
Solution 2:Use the privileged account and the MySQL command line to change the value of host of a database account to%and then authorize or delete the account in the ApsaraDB RDS console.UPDATE mysql.user SET host='%' ...
问题描述 在阿里云DMS中为InnoDB引擎的MySQL数据库建立索引时，出现类似以下报错。Specified key was too long;max key length is 767 bytes 问题原因 以MySQL的varchar、char等字符串类型字段作为索引时，单个索引字段存储长度超过了767...
步骤五：验证通过应用一致性快照恢复数据的效果 先通过应用一致性快照回滚云盘，然后将MySQL数据库最后写入时间与数据库暂停时间（prescript.sh脚本执行时间）做对比，来判断应用一致性快照的数据恢复是否正确。如果MySQL数据最后写入时间...
} 下面是另一个C++程序使用Memcache实例，在这里我们可以看见Memcache缓存与MySQL数据库相结合的场景。编译安装C++客户端的步骤还是与上一个例子相同。在MySQL数据库中创建示例database和table。mysql-h host-uUSER-pPASSSWORD create ...
and events.DTS does not support schema synchronization for DRDS.You must manually create objects such as databases and tables in the destination ... growth.If MySQL databases of version 5.7 and 8.0 run on the DRDS instance...
X.You must manually create objects such as databases and tables in the destination instance.The source PolarDB-X instance must have sufficient capacity to support business growth.If MySQL databases of version 5.7 and 8.0 ...
mysql_user Password The password of the database account.Pass*233 Use the CLI to connect to a cluster If MySQL client is installed on your server,you can run commands in the CLI to connect to a PolarDB for MySQL cluster....
mysql_user Password The password of the database account.Pass*233 Use the CLI to connect to a cluster If MySQL client is installed on your server,you can run commands in the CLI to connect to a PolarDB for MySQL cluster....
MySQL 8.0,MySQL 5.7,or MySQL 5.6 on RDS High-availability Edition MySQL 8.0 or MySQL 5.7 on RDS Cluster Edition MySQL 8.0 or MySQL 5.7 on RDS Basic Edition Your RDS instance meets the following requirements to use the ...
mysql_user Password The password of the database account.Pass*233 Use the CLI to connect to a cluster If MySQL client is installed on your server,you can run commands in the CLI to connect to a PolarDB for MySQL cluster....
xxxxxx.You can manually add the/u01/xtrabackup80/bin directory to the PATH environment variable of the system.MySQL 5.7,MySQL 5.6,or MySQL 5.5 If the RDS instance runs MySQL 5.7,MySQL 5.6,or MySQL 5.5,download and install ...
mysql_user Password The password of the database account.Pass*233 Use the CLI to connect to a cluster If MySQL client is installed on your server,you can run commands in the CLI to connect to a PolarDB for MySQL cluster....
mysql_user Password The password of the database account.Pass*233 Use the CLI to connect to a cluster If MySQL client is installed on your server,you can run commands in the CLI to connect to a PolarDB for MySQL cluster....
see Manage databases.Migration from MySQL to PolarDB for MySQL If the destination database is a PolarDB for MySQL cluster,the following limits apply:Type Description Source database limits Bandwidth requirements:The server...
} } Examples of calling the REMOTE_CALL function in AnalyticDB for MySQL If no global parameters are configured,call the ConcactNumberWithCompress user-defined function to concatenate 1 and 2 with an ampersand(&):SELECT ...
MySQL databases of versions earlier than MySQL 5.2 are supported,but not all these databases are fully compatible.Compatible with Azure Database for MySQL If you enable this feature,you can use a Microsoft Azure Database ...
0900_ai_ci,which is an internal collation that is used by replication in MySQL.If you have not encountered the illegal mix of collations error when you synchronize data from an earlier version to a later version,we ...
Problem description When I run the mysqldump command on my ApsaraDB RDS for MySQL instance,a primary/secondary switchover is triggered.Causes If you use the-master-data parameter but you do not use the-single-transaction ...
managed Oracle database to MySQL If the destination database is a MySQL database,such as an ApsaraDB RDS for MySQL instance or a self-managed MySQL database,the precautions and limitations are as follows:Type Description ...
Problem description When I run the mysqldump command on my ApsaraDB RDS for MySQL instance,a primary/secondary switchover is triggered.Causes If you use the-master-data parameter but you do not use the-single-transaction ...
对于修改字段类型的报错提示，可以通过以下两种方式解决问题：如果同步任务是整个数据库的同步操作，可以在AnalyticDB MySQL中新建一张表，表名不同于报错的表，表结构和源表的表结构保持一致，通过使用 Insert Into Select SQL语句将报错...
在基于 MySQL 数据库的系统架构下，存放着设备信息的库表，往往需要使用分库分表和相应的数据分发技术才能承担业务流量。分库分表的设计不仅增加了数据库运维人员的管理难度，也让系统架构的扩展受到了很大的限制。HybridDB for MySQL的...
Method 2:Install MySQL again to fix the plug-in.sudo yum reinstall mysql-server Client running MySQL 5.x:The client version is outdated and does not support the caching_sha2_password plug-in.In this case,install MySQL 8.0....
Problem description In an ApsaraDB RDS for MySQL instance that runs MySQL 5.7,when I execute the following SQL statement to query the value of DATA_FREE,most of the large values of DATA_FREE are the same and are detected ...
第一步：诊断当前环境 在进行任何修改前，请先连接到您的数据库，执行以下 SQL 查询，收集关键信息。将 'your_table_name' 替换为您的表名-1.查看 MySQL 版本，这决定了参数的默认行为 SELECT VERSION();2.查看影响索引长度的关键 InnoDB ...
第一步：诊断当前环境 在进行任何修改前，请先连接到您的数据库，执行以下 SQL 查询，收集关键信息。将 'your_table_name' 替换为您的表名-1.查看 MySQL 版本，这决定了参数的默认行为 SELECT VERSION();2.查看影响索引长度的关键 InnoDB ...
Problem description In an ApsaraDB RDS for MySQL instance that runs MySQL 5.7,when I execute the following SQL statement to query the value of DATA_FREE,most of the large values of DATA_FREE are the same and are detected ...
The max_user_connections parameter specifies the maximum number of connections that are allowed for a database on an AparaDB RDS for MySQL instance.If the"has more than 'max_user_connections' active connections"error ...
若您的MySQL数据库部署在本地或其他云上，您需要将DTS服务器的IP地址添加到该数据库远程连接的白名单中，以允许其访问您的数据库。更多信息，请参见 添加DTS服务器的IP地址段 或 什么是数据传输服务DTS。已根据业务需求创建对应的源库或...
The max_user_connections parameter specifies the maximum number of connections that are allowed for a database on an AparaDB RDS for MySQL instance.If the"has more than 'max_user_connections' active connections"error ...
本文介绍如何通过Java、Python或C的应用程序访问RDS MySQL数据库。参数说明 示例代码中的参数说明如下。参数 说明 Host RDS实例的内网地址或外网地址。若您的客户端部署在ECS实例上，且ECS实例与要访问的RDS实例的地域、网络类型相同，请...
If your RDS instance runs MySQL 8.0 or MySQL 5.7,we recommend that you select Solution 1.If your RDS instance runs MySQL 5.5 or MySQL 5.6,we recommend that you select Solution 3.Solution 1:Use the statement outline feature...
更多信息 更多访问RDS MySQL数据库的示例，请参见 函数计算Python访问MySQL数据库。如果您的数据库访问失败，需要根据问题现象进行排查，详情请参见 数据库访问失败的常见原因。RDS支持MySQL、SQL Server、PostgreSQL和MariaDB引擎。更多...
the value of Status for the RDS instance is Locking.The INSERT and UPDATE statements fail to be executed on the RDS instance because the RDS instance is in the Locking state.Note If your RDS instance runs MySQL 5.6,...