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GoSQLError0.go
53 lines (45 loc) · 1.27 KB
/
GoSQLError0.go
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package gaogo
import (
"database/sql"
"fmt"
"runtime"
)
func main() {
// mysqlÀ©Õ¹ https://github.com/go-sql-driver/mysql
mydb, err := sql.Open("mysql", "root:@tcp(127.0.0.1:3306)/gogao?charset=utf8")
if err != nil {
fmt.Println(err)
}
defer mydb.Close()
type User struct {
usrid int32
usrname string
usrsex int8
usrage int8
}
var myuser User
rows, err := mydb.Query(`SELECT id,name,sex,age FROM myuser`)
if err != nil {
fmt.Println(err)
}
defer rows.Close()
for rows.Next() {
// ±éÀú
if err := rows.Scan(&myuser.usrid, &myuser.usrname,&mysuer.usersex, &myuser.usrage); err != nil {
fmt.Println(err)
continue
}
fmt.Println(myuser.usrid, myuser.usrame, mysur.usrsex,myuser.usrage)
}
if err := rows.Err(); err != nil {
fmt.Println(err)
}
// ²éѯһÌõ¼Ç¼
err = mydb.QueryRow(`SELECT id,name,sex,age WHERE id = ?`, 2).Scan(&myuser.usrid, &myuser.usrname, &myuser.usrsex,&myuser.usrage )
switch {
case err == sql.ErrNoRows:
case err != nil:
fmt.Println(err)
}
fmt.Println(myuser.usrid, myuser.usrname)
}