出處：http://www.01happy.com/golang-mysql-demo/
修改案例：
package main
import (
"database/sql"
"fmt"
_ "github.com/go-sql-driver/mysql"
)
func main() {
insert()
}
func insert() {
db, err := sql.Open("mysql", "root:000000@/test?charset=utf8")
checkErr(err)
cr_table := "create table if not exists user(user_id int auto_increment primary key, user_name varchar(128),user_age int,user_sex int not null default 0)"
stmt1, err := db.Prepare(cr_table)
checkErr(err)
_, err = stmt1.Exec()
checkErr(err)
stmt, err := db.Prepare(`INSERT user (user_name,user_age,user_sex) values (?,?,?)`)
checkErr(err)
res, err := stmt.Exec("費大幅", 20, 1)
checkErr(err)
id, err := res.LastInsertId()
checkErr(err)
fmt.Println(id)
//下面取消註釋進入查詢
//query()
}
func query() {
db, err := sql.Open("mysql", "root:000000@/test?charset=utf8")
checkErr(err)
rows, err := db.Query("SELECT * FROM user where user_name ='費大幅'")
checkErr(err)
for rows.Next() {
var userId int
var userName string
var userAge int
var userSex int
rows.Columns()
err = rows.Scan(&userId, &userName, &userAge, &userSex)
checkErr(err)
fmt.Println(userId, userName, userAge, userSex)
}
//下面取消註釋進入更改
//update()
}
func update() {
db, err := sql.Open("mysql", "root:000000@/test?charset=utf8")
checkErr(err)
stmt, err := db.Prepare(`UPDATE user SET user_name=?,user_age=?,user_sex=? WHERE user_id=?`)
checkErr(err)
res, err := stmt.Exec("胖大海", 18, 3, 10)
checkErr(err)
num, err := res.RowsAffected()
checkErr(err)
fmt.Println(num)
//下面取消註釋進入刪除
//remove()
}
func check() {
db, err := sql.Open("mysql", "root:000000@/test?charset=utf8")
checkErr(err)
rows, err := db.Query("SELECT * FROM user")
checkErr(err)
for rows.Next() {
var userId, userAge, userSex int
var userName string
rows.Columns()
err = rows.Scan(&userId, &userName, &userAge, &userSex)
checkErr(err)
fmt.Println(userId, userName, userAge, userSex, "update")
}
}
func remove() {
db, err := sql.Open("mysql", "root:000000@/test?charset=utf8")
checkErr(err)
check()
stmt, err := db.Prepare(`DELETE FROM user WHERE user_name=?`)
checkErr(err)
res, err := stmt.Exec("sony")
checkErr(err)
num, err := res.RowsAffected()
checkErr(err)
fmt.Println(num)
check()
}
func checkErr(err error) {
if err != nil {
panic(err)
}
}
