使用select语句，concat函数导出表的insert脚本

---sql
select concat('insert into user(user_id,user_name,pswd) values(','''',user_id,''',','''',user_name,''',','''',pswd,'''',');') from user;

---result

| insert into user(user_id,user_name,pswd) values('haiyoung','Haiyoung','123');                                          
| insert into user(user_id,user_name,pswd) values('haiyoung001','Haiyoung001','123');                                    
| insert into user(user_id,user_name,pswd) values('haiyoung002','Haiyoung002','123');                                    
| insert into user(user_id,user_name,pswd) values('haiyoung003','Haiyoung003','123'); 

执行结果如图所示：