How do I use prepared statements in the Go SQL package?

How do I use prepared statements in the Go SQL package?

To use prepared statements in the Go SQL package, you first need to import the database/sql package and a driver. Then, you can prepare a statement using db.Prepare().

Can you show me a code example?

Sure! Here's a simple example:

package main

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

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

    stmt, err := db.Prepare("INSERT INTO users(name) VALUES($1)")
    if err != nil {
        log.Fatal(err)
    }
    defer stmt.Close()

    _, err = stmt.Exec("John Doe")
    if err != nil {
        log.Fatal(err)
    }
}

What are the benefits of using prepared statements?

Prepared statements help prevent SQL injection attacks, improve performance by allowing the database to cache the execution plan, and make your code cleaner.

Are there any limitations I should be aware of?

Yes, prepared statements can have limitations such as not being able to use them for dynamic SQL queries where the structure of the query changes.