hello_mysql.go

## hello_mysql.go
package main

import (
    "database/sql"
    "log"
    _ "github.com/go-sql-driver/mysql"
)

func main() {
    db, err := sql.Open("mysql", "root:@tcp(:3306)/test")
    if err != nil {
        log.Fatal(err)
    }
    defer db.Close()

    _, err = db.Exec(
        "CREATE TABLE IF NOT EXISTS test.hello(world varchar(50))")
    if err != nil {
        log.Fatal(err)
    }

    res, err := db.Exec(
        "INSERT INTO test.hello(world) VALUES('hello world!')")
    if err != nil {
        log.Fatal(err)
    }
    rowCount, err := res.RowsAffected()
    if err != nil {
        log.Fatal(err)
    }
    log.Printf("inserted %d rows", rowCount)

    rows, err := db.Query("SELECT * FROM test.hello")
    if err != nil {
        log.Fatal(err)
    }
    for rows.Next() {
        var s string
        err = rows.Scan(&s)
        if err != nil {
            log.Fatal(err)
        }
        log.Printf("found row containing %q", s)
    }
    rows.Close()
}