正常情況下往數(shù)據(jù)庫多張表中批量插入1000條數(shù)據(jù),若一條一條insert插入,則調(diào)用sql語句查詢插入需要執(zhí)行幾千次,花費(fèi)時(shí)間長
# 插入數(shù)據(jù)進(jìn)pay表
def pay_insert(self,pay_value):
try:
# 連接數(shù)據(jù)庫
self.isConnection()
# 創(chuàng)建游標(biāo)
global cursor
cursor=self.__db.cursor()
# 執(zhí)行
cursor.executemany('insert into `pay表`(type,pay_money,pay_time,pay_no,STATUS,create_by,create_time,update_by,update_time) value (%s,%s,%s,%s,%s,%s,%s,%s,%s)',pay_value)
except Exception as e:
print e
finally:
cursor.close()
self.__db.commit()
self.__db.close()
# 生成pay表所需字段,并調(diào)用sql
def pay_data(self):
pay_value=list()
for i in range(1,1000):
pay_value.append((0,8800,time.localtime(),str(random.randint(712300000000,712399999999)),3,49338,time.localtime(),49338,time.localtime()))
now_time=time.localtime()
self.pay_insert(pay_value)
return now_time
# #!/usr/bin/python
# # -*- coding: UTF-8 -*-
import pymysql # 先pip install pymysql
import random
import time
class DatabaseAcess:
# 初始化屬性(包括host、port、user、password和database)
def __init__(self):
self.__db_host=XXX
self.__db_port=XXX
self.__db_user=XXX
self.__db_password=XXX
self.__db_database=XXX
# 連接數(shù)據(jù)庫
def isConnection(self):
self.__db=pymysql.connect(
host=self.__db_host,
port=self.__db_port,
user=self.__db_user,
password=self.__db_password,
database=self.__db_database,
charset='utf8'
)
# 插入數(shù)據(jù)進(jìn)pay表
def pay_insert(self,pay_value):
try:
# 連接數(shù)據(jù)庫
self.isConnection()
# 創(chuàng)建游標(biāo)
global cursor
cursor=self.__db.cursor()
# 執(zhí)行
cursor.executemany('insert into `pay表`(type,pay_money,pay_time,pay_no,STATUS,create_by,create_time,update_by,update_time) value (%s,%s,%s,%s,%s,%s,%s,%s,%s)',pay_value)
except Exception as e:
print e
finally:
cursor.close()
self.__db.commit()
self.__db.close()
# 生成pay表所需字段,并調(diào)用sql
def pay_data(self,data_number):
pay_value=list()
for i in range(1,data_number):
pay_value.append((0,8800,time.localtime(),str(random.randint(712300000000,712399999999)),3,49338,time.localtime(),49338,time.localtime()))
now_time=time.localtime()
self.pay_insert(pay_value)
return now_time
# 獲取pay_id
def get_pay_id(self,now_time,data_number):
try:
self.isConnection()
global cursor
cursor=self.__db.cursor()
cursor.execute('select id from `pay表` where create_time >= %s',now_time)
id_value=list()
for i in range(1,data_number):
pay_id=cursor.fetchone()
id_value.append(pay_id)
return id_value
except Exception as e:
print e
finally:
cursor.close()
self.__db.commit()
self.__db.close()
# 插入數(shù)據(jù)進(jìn)order表
def order_insert(self,order_value):
try:
self.isConnection()
global cursor
cursor=self.__db.cursor()
cursor.executemany('insert into `order表` (student_name,student_id,school_id,school_name,tel,height,sex,pay_id,order_no,status,original_price,payment_price,order_type,create_by,create_time,update_by,update_time,purchase_id,dept_id,sub_order_mid,class_name,shoe_size,student_no,weight) value (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)',order_value)
except Exception as e:
print e
finally:
cursor.close()
self.__db.commit()
self.__db.close()
# 生成order表所需字段,并調(diào)用sql
def order_data(self,id_value,data_number):
order_value=list()
for i in range(1,data_number):
pay_id=str(id_value[i-1]).replace("L,)","").replace("(","")
order_value.append(("周瑜",35999,346,"A城小學(xué)","13322222222",130,1,pay_id,str(random.randint(7100000000,7999999999)),2,8800,8800,1,49338,time.localtime(),49338,time.localtime(),405,121,564123698745632,"三年級 3班",30,30,30))
sys_time=time.localtime()
self.order_insert(order_value)
return sys_time
# 獲取order_id
def get_order_id(self,sys_time,data_number):
try:
self.isConnection()
global cursor
cursor=self.__db.cursor()
cursor.execute('select id from `order表` where create_time >= %s',sys_time)
order_id_list=list()
for i in range(1,data_number):
order_id_list.append(cursor.fetchone())
return order_id_list
except Exception as e:
print e
finally:
cursor.close()
self.__db.commit()
self.__db.close()
# 插入數(shù)據(jù)進(jìn)order_detail表
def order_detail_insert(self,detail_value):
try:
self.isConnection()
global cursor
cursor=self.__db.cursor()
cursor.executemany('insert into `order_details表` (order_id,commodity_name,commodity_id,original_price,payment_price,img,number,status,create_by,create_time,update_by,update_time) value (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)',detail_value)
except Exception as e:
print e
finally:
cursor.close()
self.__db.commit()
self.__db.close()
# 生成order_detail表所需字段,并調(diào)用sql
def order_detail_data(self,order_id_list,data_number):
detail_value=list()
for i in range(1,data_number):
order_id=str(order_id_list[i-1]).replace("L,)","").replace("(","")
detail_value.append((order_id,"A城小學(xué)春季校服","1382932636506902530",8800,8800,"https://ygxf-dev2.obs.cn-north-1.myhuaweicloud.com:443/image%2F1618551784845-589.jpg",1,2,49338,time.localtime(),49338,time.localtime()))
self.order_detail_insert(detail_value)
if __name__ == '__main__':
db=DatabaseAcess()
data_number=3
db.order_detail_data(order_id_list=db.get_order_id(sys_time=db.order_data(id_value=db.get_pay_id(now_time=db.pay_data(data_number=data_number),data_number=data_number),data_number=data_number),data_number=data_number),data_number=data_number)
print ("{0}條數(shù)據(jù)插入完成".format(data_number-1))
到此這篇關(guān)于python數(shù)據(jù)庫批量插入數(shù)據(jù)的實(shí)現(xiàn)(executemany的使用)的文章就介紹到這了,更多相關(guān)python數(shù)據(jù)庫批量插入 內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!