import pymysql
# 数据库连接信息conn = pymysql.connect( host='127.0.0.1', user='root', passwd='wangyuqing', db='test01', port = 3306, charset="utf8")
# 分块处理big_size = 100000# 分块遍历写入到 mysql with pd.read_csv('./tianchi_mobile_recommend_train_user.csv',chunksize=big_size) as reader:
for df in reader:
datas = [] print('处理：',len(df))# print(df) for i ,j in df.iterrows(): data = (j['user_id'],j['item_id'],j['behavior_type'], j['item_category'],j['time']) datas.append(data) _values = ",".join(['%s', ] * 5) sql = """insert into users(user_id,item_id,behavior_type ,item_category,time) values(%s)""" % _values cursor = conn.cursor() cursor.executemany(sql,datas) conn.commit() # 关闭服务 conn.close()cursor.close()print('存入成功！')
