How do I handle errors in Go database queries?

How do I handle errors in Go database queries?

In Go, you can handle errors in database queries by checking the error returned by the query execution. For example, after executing a query, you should always check if the error is nil.

Can you show me a code example?

Sure! Here's a simple example:

result, err := db.Query("SELECT * FROM users")
if err != nil {
    log.Fatal(err)
}
// Process result

What if I want to handle different types of errors?

You can use type assertions or switch statements to handle different error types. For instance, you can check if the error is a specific database error type and respond accordingly.

Is there a way to log these errors?

Yes, you can use the log package in Go to log errors. Just call log.Println(err) or log.Fatal(err) to log the error details.