Integrating SQL database support into a Go application is efficiently managed with the `database/sql` package, which offers a generic, driver-based interface for interacting with a wide array of SQL databases such as SQLite and Postgres. The importance of choosing the right database driver—favoring those that have passed compatibility testing—is emphasized, with trade-offs highlighted between options like the Cgo-dependent SQLite driver and pure Go Postgres drivers like PGX or lib/pq. Essential database operations—including establishing connections, creating tables, inserting, querying, and retrieving records—are demonstrated using practical code examples, underscoring best practices such as always closing connections and using context-aware functions for robustness. While the standard library simplifies switching between databases by abstracting driver implementations, particular attention must be paid to driver-specific setup, cross-compilation challenges, and effective use of query arguments to securely handle user data. The lesson culminates with actionable guidance on extending command-line tools to support CRUD operations, fostering hands-on familiarity and laying the groundwork for future enhancements with migrations and code generation tools.