golang-database

Handle Go database transactions and NULLable columns by using explicit transaction patterns with Tx, scanning into sql.Null* types, and wrapping errors deterministically. This approach ensures safe database access across PostgreSQL, MySQL, and SQLite.

The best way to write testable Go database code is by using parameterized queries, propagating context for cancellation, and applying testing patterns with mocks and integration tests to ensure observable and deterministic behavior.

Context propagation for Go database operations works by passing context.Context to query methods like GetContext, ensuring operations respect cancellation deadlines and timeouts for safe, observable database access.

You should use explicit SQL with sqlx and pgx in Go rather than an ORM. This enforces strict parameterized queries, strong error handling, and observable code while maintaining direct control over database/sql operations.

Yes, you can use sqlx and pgx for database access across PostgreSQL, MySQL, and SQLite. They provide ergonomics over database/sql while maintaining explicit SQL usage, proper rows handling, and consistent error wrapping.

You get sql.ErrNoRows when a Go database query returns no results, handled by checking against the error explicitly and wrapping other errors. This deterministic pattern ensures strong error handling and observable code.