I will fix sql database errors, design schemas and relationships

Are you facing an SQL error or a problem with your database structure?

I will investigate and fix one specific SQL database issue in a clear and organized way. I can help with query errors, table relationships, primary and foreign keys, constraints, duplicate data, and basic database design.

The service may include:

- Fixing one SQL query error

- Creating or modifying tables

- Setting up basic relationships

- Writing or updating SQL queries

- Reviewing a small database structure

- Providing a brief explanation of the applied fix

I can work with MySQL, PostgreSQL, SQLite, and basic Supabase database setups.

Please contact me before placing an order and share the error message, SQL query, database structure, or a clear description of the required result.

The Basic package covers one specific issue or a simple design for a limited number of tables. Large systems, complete applications, data migration, advanced backend development, and multiple unrelated issues require a custom offer.