Python操作数据库

结合上篇的 连接数据库   然后呢 就进行下面的操作 over  简单易懂就够了。

 

import  pymysql
from testpy.mysqlconnection import MysqlConnection

#调用
class MysqlInsertDBS:

    def select():
        sql = "select t.turl,n.libs,n.nname,n.nurl,n.img from temp t left join node n on n.tempid =t.id"
        db = MysqlConnection.connsql()
        cursor=db.cursor()
        cursor.execute(sql)
        data=cursor.fetchall()
        for redu in data:
            return redu
    def insert(videoName, videoUrl, videoImg):
        db = MysqlConnection.connsql()
        cursor = db.cursor()
        sqli = "insert into spider(videoName,videoUrl,videoImg) values('%s','%s','%s')"%(videoName,videoUrl,videoImg)
        cursor.execute(sqli)
        db.commit()
        db.rollback()  # 发生错误时回滚
        cursor.close()
    if __name__=="__main__":
        select()