How do I connect to a database in Go?

How do I connect to a database in Go?

To connect to a database in Go, you typically use the database/sql package along with a driver for your specific database.

What driver should I use for PostgreSQL?

For PostgreSQL, you can use the pq driver. You can install it using go get github.com/lib/pq.

Can you show me a sample code for connecting to PostgreSQL?

Sure! Here's a simple example:

package main

import (
    "database/sql"
    "fmt"
    _ "github.com/lib/pq"
)

func main() {
    connStr := "user=username dbname=mydb sslmode=disable"
    db, err := sql.Open("postgres", connStr)
    if err != nil {
        log.Fatal(err)
    }
    defer db.Close()

    err = db.Ping()
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("Connected to the database!")
}

What should I do if I encounter a connection error?

If you encounter a connection error, check your connection string for correctness, ensure the database server is running, and verify network access.