Data Migration Expert FAQs

Question 1

Is this skill limited to specific SQL dialects?

Accepted Answer

While it focuses on general relational database principles and best practices, its logic applies to PostgreSQL, MySQL, SQL Server, and other standard SQL environments where schema migrations are managed.

Question 2

How does this skill prevent data loss during migrations?

Accepted Answer

It analyzes migration scripts for destructive operations like dropping columns or changing types and recommends safe, multi-step patterns to ensure data is preserved and verified before any permanent changes occur.

Question 3

What kind of ID mapping issues does it detect?

Accepted Answer

It looks for common logical errors where mapping values might be swapped (e.g., userId vs accountId) or where transformation logic is missing crucial validation steps that could lead to data corruption.

Question 4

Can it help with zero-downtime deployments?

Accepted Answer

Yes, it specifically checks for backward and forward compatibility between your database schema and application code to ensure the system remains functional during the deployment transition.

Question 5

What are considered P1 severity issues in its reviews?

Accepted Answer

P1 issues identify critical risks such as irreversible data loss, migrations that cannot be rolled back, swapped ID mappings, or dropping active columns without verification.

Data Migration Expert

About

Key Features

Use Cases

Data Migration Expert

About

Key Features

Use Cases