数据库mysql同步的相关内容

阿里云文档 2025-07-17

RDS MySQL写入数据报错Error 1406: Data too long for column

Error 1406: Data too long for column问题描述在RDS MySQL数据库中写入数据时，出现如下报错：Error 1406: Data too long for column 'xxx'问题原因字段长度限制当表结构中定义的字段为字符类型（如CHAR或VARCHAR），...

阿里云文档 2025-07-11

MySQL系列的数据库实例作为源端或目标端

本文为您介绍数据传输服务DTS（Data Transmission Service）支持的以MySQL系列（MySQL、PolarDB for MySQL、Mariadb、OceanBase（MySQL）、PolarDB-X 2.0）数据库实例为源端或目标端的任务。

阿里云文档 2025-07-09

RDS多可用区部署实例SLA提升

RDS高可用系列和集群系列多可用区部署实例的服务等级协议SLA提升至99.995%~99.997%。

阿里云文档 2025-07-08

RDS MySQL使用gh-ost出现“Scan error on column index 0”报错的解决方法

问题描述在RDS MySQL中使用gh-ost做DDL无锁变更时，可能会出现类似报错：Scan error on column index 0, name "@@global.port": converting NULL to int is unsupported。在RDS MySQL中使用gh-o...

阿里云文档 2025-06-25

Spring应用RDS数据源账密运行时轮转

本文档介绍如何在Spring应用中实现RDS数据源账密的运行时轮转，通过集成KMS与Nacos，实现数据库凭据的加密托管、动态更新与无缝切换，保障应用在凭据变更过程中的安全与稳定。

文章 2024-07-04 来自：开发者社区

MybatisPlus添加数据数据库没有数据，数据消失，使用Navicate看不到数据，Navicate中Mysql的数据与idea的数据不一定同步，Navicate与idea的数据库同步，其实有分页

今天在执行添加数据的操作的时候出现了一个bug:简单的添加一条数据，Navicate中压根没有看到 package zero.file.videoProject.util.test; import org.junit.Test; import org.junit.runner.Ru...

问答 2023-09-27 来自：开发者社区

OceanBase数据库中用OMS从MySQL迁移到OB，这个不能自动发现并增加到同步的表中吗？

"OceanBase数据库中用OMS从MySQL迁移到OB，如果远端MySQL 增加了表，好像ddl并没有到OB呢，这个不能自动发现并增加到同步的表中吗，还是需要手动去增加表？我新建了链路，是不是需要使用database.*这样才会同步呀，不能指定对象。"

问答 2023-08-22 来自：开发者社区

OceanBase数据库中mysql 同步数据到oceanBase 有什么方案？

文章 2022-12-19 来自：开发者社区

[TOC]一、主从同步的定义主从同步使得数据可以从一个数据库服务器复制到其他服务器上，在复制数据时，一个服务器充当主服务器（master），其余的服务器充当从服务器（slave）。因为复制是异步进行的，所以从服务器不需要一直连接着主服务器，从服务器甚至可以通过拨号断断续续地连接主服务器。通过配置文件，可以指定复制所有的数据库，某个数据库，甚至是某个数据库上的某个表。读写分离、数据备份、负载均衡二....

问答 2022-08-12 来自：开发者社区

有个问题想请教下，我想用来同步数据库，但我看他是根据mysql 的binlog同步的，如果是大表，一

有个问题想请教下，我想用来同步数据库，但我看他是根据mysql 的binlog同步的，如果是大表，一开始是不是得利用快照同步，flink CDC怎么使用快照同步呢

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