- Release Notes
- Product Introduction
- Purchase Guide
- Quick Start
- Preparations
- NewDTS
- Data Sync
- Data Subscription Kafka Edition
- Data Migration (Legacy)
- MySQL Data Migration
- Migrating from Public Network-based External MySQL to TencentDB for MySQL
- Migrating from External MySQL Based on Direct Connect/VPN Gateway to TencentDB for MySQL
- Migrating from CCN-based Self-created MySQL to TencentDB for MySQL
- Migrating from AWS RDS for MySQL to TencentDB for MySQL
- Migrating from AWS Aurora for MySQL to TencentDB for MySQL
- Migrating from Alibaba Cloud RDS for MySQL to TencentDB for MySQL
- Migrating from Alibaba Cloud PolarDB for MySQL to TencentDB for MySQL
- Migration between TencentDB for MySQL Instances
- Online Import of MySQL Data
- Offline Migration of MySQL Data
- Migrating from Alibaba Cloud ApsaraDB for RDS to TencentDB
- Redis Data Migration
- MongoDB Data Migration
- MariaDB Data Migration
- MySQL Data Migration
- Data Subscription (Legacy)
- Fix for Verification Failure
- Check Item Overview
- Database Connection Check
- Source Database Existence Check
- Target Database Existence Check
- Peripheral Check
- Migration Network Check
- Version Check
- Source Database Permission Check
- Account Conflict Check
- Partial Database Parameter Check
- Parameter Configuration Conflict Check
- Target Database Content Conflict Check
- Target Database Space Check
- Target Database Load Check
- Local Disk Space Check
- Binlog Parameter Check
- Oplog Check
- Foreign Key Dependency Check
- View Check
- Incremental Migration Precondition Check
- Extension/Plugin Compatibility Check
- RDS Check
- Source Database Balancer Check
- Source Database Node Role Check
- ShardKey Check
- Warning Item Check
- DLL Ring Sync Check for Single Database/Table Object
- DLL Sync Conflict Check for Single Database/Table Object in the Same Target
- Cutover Description
- Connection to Cloud Monitor
- Best Practices
- API Documentation
- SDK Documentation
- FAQs
- Error Handling (NewDTS)
- Release Notes
- Product Introduction
- Purchase Guide
- Quick Start
- Preparations
- NewDTS
- Data Sync
- Data Subscription Kafka Edition
- Data Migration (Legacy)
- MySQL Data Migration
- Migrating from Public Network-based External MySQL to TencentDB for MySQL
- Migrating from External MySQL Based on Direct Connect/VPN Gateway to TencentDB for MySQL
- Migrating from CCN-based Self-created MySQL to TencentDB for MySQL
- Migrating from AWS RDS for MySQL to TencentDB for MySQL
- Migrating from AWS Aurora for MySQL to TencentDB for MySQL
- Migrating from Alibaba Cloud RDS for MySQL to TencentDB for MySQL
- Migrating from Alibaba Cloud PolarDB for MySQL to TencentDB for MySQL
- Migration between TencentDB for MySQL Instances
- Online Import of MySQL Data
- Offline Migration of MySQL Data
- Migrating from Alibaba Cloud ApsaraDB for RDS to TencentDB
- Redis Data Migration
- MongoDB Data Migration
- MariaDB Data Migration
- MySQL Data Migration
- Data Subscription (Legacy)
- Fix for Verification Failure
- Check Item Overview
- Database Connection Check
- Source Database Existence Check
- Target Database Existence Check
- Peripheral Check
- Migration Network Check
- Version Check
- Source Database Permission Check
- Account Conflict Check
- Partial Database Parameter Check
- Parameter Configuration Conflict Check
- Target Database Content Conflict Check
- Target Database Space Check
- Target Database Load Check
- Local Disk Space Check
- Binlog Parameter Check
- Oplog Check
- Foreign Key Dependency Check
- View Check
- Incremental Migration Precondition Check
- Extension/Plugin Compatibility Check
- RDS Check
- Source Database Balancer Check
- Source Database Node Role Check
- ShardKey Check
- Warning Item Check
- DLL Ring Sync Check for Single Database/Table Object
- DLL Sync Conflict Check for Single Database/Table Object in the Same Target
- Cutover Description
- Connection to Cloud Monitor
- Best Practices
- API Documentation
- SDK Documentation
- FAQs
- Error Handling (NewDTS)
Check Details
- Check requirements: if the source database is Alibaba Cloud RDS, tables in it must have a primary key or non-null unique key.
- Check description: there are hidden columns in RDS tables. During migration without locks, tables without a primary key or non-null unique key may have the risk of data inconsistency.
Fix
Modify the tables without a primary key or non-null unique key as prompted on the page and run the verification task again.
Yes
No
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