Azure Database Migration

Azure Database Migration service Skill

This skill provides expert guidance for Azure Database Migration service. Covers troubleshooting, decision making, limits & quotas, security, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

> IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., security.md), use read_file on the linked reference file

> IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

• Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
• Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

| Category | Lines | Description |

|----------|-------|-------------|

| Troubleshooting | L34-L41 | Diagnosing and fixing common Azure DMS issues, including classic vs new DMS problems, MySQL migration errors, and source database connectivity and network failures. |

| Decision Making | L42-L47 | Choosing the right Azure DMS tool and scenario for your source/target databases, plus FAQs on supported migrations, limitations, and how to use Azure Database Migration Service. |

| Limits & Quotas | L48-L55 | Migration-specific limits, unsupported features, and constraints when using Azure DMS to move MySQL, PostgreSQL, SQL Managed Instance, MongoDB, and hybrid deployments. |

| Security | L56-L61 | Security guidance for Azure DMS migrations, including SQL best practices (network, auth, encryption) and configuring custom RBAC roles for MySQL migration scenarios. |

| Integrations & Coding Patterns | L62-L66 | Automating MySQL-to-Azure Database for MySQL migrations using Azure Database Migration Service with PowerShell scripts, parameters, and end-to-end workflow examples. |

| Deployment | L67-L71 | Using Azure DMS to redeploy or migrate SSIS packages to Azure SQL Database or SQL Managed Instance, including configuration steps and migration considerations. |

Troubleshooting

| Topic | URL |

|-------|-----|

| Resolve common Azure Database Migration Service issues | https://learn.microsoft.com/en-us/azure/dms/faq |

| Resolve known issues migrating to Azure MySQL | https://learn.microsoft.com/en-us/azure/dms/known-issues-azure-mysql-fs-online |

| Troubleshoot common Azure DMS classic migration issues | https://learn.microsoft.com/en-us/azure/dms/known-issues-troubleshooting-dms |

| Fix Azure DMS source database connectivity problems | https://learn.microsoft.com/en-us/azure/dms/known-issues-troubleshooting-dms-source-connectivity |

Decision Making

| Topic | URL |

|-------|-----|

| Choose database migration tools with the Azure DMS matrix | https://learn.microsoft.com/en-us/azure/dms/dms-tools-matrix |

| Select supported Azure DMS migration scenarios | https://learn.microsoft.com/en-us/azure/dms/resource-scenario-status |

Limits & Quotas

| Topic | URL |

|-------|-----|

| Review online PostgreSQL to Azure Database for PostgreSQL migration limitations | https://learn.microsoft.com/en-us/azure/dms/known-issues-azure-postgresql-online |

| Review online migration limits to Azure SQL Managed Instance | https://learn.microsoft.com/en-us/azure/dms/known-issues-azure-sql-db-managed-instance-online |

| Understand Azure DMS hybrid mode limitations and issues | https://learn.microsoft.com/en-us/azure/dms/known-issues-dms-hybrid-mode |

| Review MongoDB to Azure Cosmos DB migration limitations with DMS | https://learn.microsoft.com/en-us/azure/dms/known-issues-mongo-cosmos-db |

Security

| Topic | URL |

|-------|-----|

| Apply security best practices for DMS SQL migrations | https://learn.microsoft.com/en-us/azure/dms/dms-security-best-practices |

| Configure custom RBAC roles for MySQL migrations in DMS | https://learn.microsoft.com/en-us/azure/dms/resource-custom-roles-mysql-database-migration-service |

Integrations & Coding Patterns

| Topic | URL |

|-------|-----|

| Automate MySQL to Azure MySQL migration with DMS PowerShell | https://learn.microsoft.com/en-us/azure/dms/migrate-mysql-to-azure-mysql-powershell |

Deployment

| Topic | URL |

|-------|-----|

| Redeploy SSIS packages to Azure SQL Database with DMS | https://learn.microsoft.com/en-us/azure/dms/how-to-migrate-ssis-packages |

| Migrate SSIS packages to Azure SQL Managed Instance with DMS | https://learn.microsoft.com/en-us/azure/dms/how-to-migrate-ssis-packages-managed-instance |