3.5.1-mysql6.go

//++++++++++++++++++++++++++++++++++++++++
// 《Go语言高级开发与实战》源码
//++++++++++++++++++++++++++++++++++++++++
// Author:廖显东（ShirDon）
// Blog:https://www.shirdon.com/
// 知乎：https://www.zhihu.com/people/shirdonl
// 公众号:源码大数据
// 仓库地址：https://gitee.com/shirdonl/goAdvanced
// 仓库地址：https://github.com/shirdonl/goAdvanced
//++++++++++++++++++++++++++++++++++++++++

package main

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

func main() {
	db, err := sql.Open("mysql", "user:password@tcp(127.0.0.1:3306)/hello")
	if err != nil {
		fmt.Println(err)
	}
	var name string
	err = db.QueryRow("select name from user where id = ?", 6).Scan(&name)
	if err != nil {
		if err == sql.ErrNoRows {
			//结果没有行，但没有发生错误
		} else {
			log.Fatal(err)
		}
	}
	fmt.Println(name)
}