Handle Go database errors by checking return values and using errors.Is to identify specific issues like missing rows.
Handle database errors in Go by checking the error return value from database operations and using errors.Is or errors.As to identify specific error types like sql.ErrNoRows.
err := db.QueryRow("SELECT name FROM users WHERE id = ?", id).Scan(&name)
if err == sql.ErrNoRows {
// Handle missing user
} else if err != nil {
// Handle other database errors
log.Fatal(err)
}
Database errors happen when your code tries to talk to a database but something goes wrong, like a missing record or a connection failure. You handle them by checking the result of every database command to see if it failed. If it did, you check the specific error message to decide whether to show a user-friendly message or stop the program.