脚本之家，脚本语言编程技术及教程分享平台！
分类导航

Python|VBS|Ruby|Lua|perl|VBA|Golang|PowerShell|Erlang|autoit|Dos|bat|

服务器之家 - 脚本之家 - Python - Python实现将MySQL数据库表中的数据导出生成csv格式文件的方法

Python实现将MySQL数据库表中的数据导出生成csv格式文件的方法

2021-01-04 00:18郭一军_guoyJoe Python

这篇文章主要介绍了Python实现将MySQL数据库表中的数据导出生成csv格式文件的方法,涉及Python针对mysql数据库的连接、查询、csv格式数据文件的生成等相关操作技巧,需要的朋友可以参考下

本文实例讲述了Python实现将MySQL数据库表中的数据导出生成csv格式文件的方法。分享给大家供大家参考，具体如下：

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
#!/usr/bin/env python
# -*- coding:utf-8 -*-
"""
 Purpose: 生成日汇总对账文件
 Created: 2015/4/27
 Modified:2015/5/1
 @author: guoyJoe
"""
#导入模块
import MySQLdb
import time
import datetime
import os
#日期
today = datetime.date.today()
yestoday = today - datetime.timedelta(days=1)
#对账日期
checkAcc_date = yestoday.strftime('%Y%m%d')
#对账文件目录
fileDir = "/u02/filesvrd/report"
#SQL语句
sqlStr1 = 'SELECT distinct pay_custid FROM dbpay.tb_pay_bill WHERE date_acct = %s'
#总笔数|成功交易笔数|成功交易金额|退货笔数|退货金额|撤销笔数|撤销金额
sqlStr2="""SELECT totalNum,succeedNum,succeedAmt,returnNum,returnAmt,revokeNum,revokeAmt
  FROM
    (SELECT count(order_id) AS totalNum
      FROM (SELECT p.order_id as order_id
        FROM dbpay.tb_pay_bill p, dbpay.tb_paybillserial q
        WHERE p.oid_billno = q.oid_billno
        AND p.paycust_accttype = 2
        AND p.Paycust_Type = 1
        AND p.stat_bill in (0, 4)
        AND q.pay_stat = 1
        AND q.col_stat = 1
        AND p.pay_custid = %s
        AND q.date_acct = %s
        UNION ALL
        SELECT p.order_id as order_id
        FROM dbpay.tb_pay_bill p, dbpay.tb_paybillserial q
        WHERE p.oid_billno = q.oid_billno
        AND p.col_accttype = 2
        AND p.col_type = 1
        AND p.stat_bill in (0, 4)
        AND q.pay_stat = 1
        AND q.col_stat = 1
        AND p.col_custid = %s
        AND q.date_acct = %s
        UNION ALL
        SELECT R.ORDER_ID AS ORDER_ID
        FROM DBPAY.TB_REFUND_BILL R, DBPAY.TB_PAYBILLSERIAL Q
        WHERE R.oid_refundno = Q.OID_BILLNO
         AND R.ORI_COL_ACCTTYPE = 2
         AND R.ORI_COL_TYPE = 1
         AND R.STAT_BILL = 2
         AND Q.PAY_STAT = 1
         AND Q.COL_STAT = 1
         AND R.ORI_COL_CUSTID = %s
         AND Q.DATE_ACCT = %s ) as total) A,
        (SELECT count(order_id) succeedNum ,sum(amt_paybill) succeedAmt
         FROM (SELECT p.order_id as order_id,
        q.amt_payserial/1000 as amt_paybill
        FROM dbpay.tb_pay_bill p, dbpay.tb_paybillserial q
        WHERE p.oid_billno = q.oid_billno
        AND p.paycust_accttype = 2
        AND p.Paycust_Type = 1
        AND p.stat_bill = '0'
        AND q.pay_stat = 1
        AND q.col_stat = 1
        AND p.pay_custid = %s
        AND q.date_acct = %s
        UNION ALL
        SELECT p.order_id as order_id,
        q.amt_payserial/1000 as amt_paybill
        FROM dbpay.tb_pay_bill p, dbpay.tb_paybillserial q
        WHERE p.oid_billno = q.oid_billno
        AND p.col_accttype = 2
        AND p.col_type = 1
        AND p.stat_bill = '0'
        AND q.pay_stat = 1
        AND q.col_stat = 1
        AND p.col_custid = %s
        AND q.date_acct = %s ) as succeed) B,
        (SELECT count(order_id) returnNum, sum(amt_paybill) returnAmt
        FROM (SELECT R.ORDER_ID AS ORDER_ID,
        Q.AMT_PAYSERIAL/1000 AS AMT_PAYBILL
        FROM DBPAY.TB_REFUND_BILL R, DBPAY.TB_PAYBILLSERIAL Q
        WHERE R.oid_refundno = Q.OID_BILLNO
         AND R.ORI_COL_ACCTTYPE = 2
         AND R.ORI_COL_TYPE = 1
         AND R.STAT_BILL = 2
         AND Q.PAY_STAT = 1
         AND Q.COL_STAT = 1
         AND R.ORI_COL_CUSTID = %s
         AND Q.DATE_ACCT = %s ) as retur) C,
         (SELECT count(order_id) revokeNum,sum(amt_paybill) revokeAmt
         FROM (SELECT p.order_id as order_id,
         q.amt_payserial/1000 as amt_paybill
         FROM dbpay.tb_pay_bill p, dbpay.tb_paybillserial q
        WHERE p.oid_billno = q.oid_billno
        AND p.paycust_accttype = 2
        AND p.Paycust_Type = 1
        AND p.stat_bill = '4'
        AND q.pay_stat = 1
        AND q.col_stat = 1
        AND p.pay_custid = %s
        AND q.date_acct = %s
        UNION ALL
        SELECT p.order_id as order_id,
        q.amt_payserial/1000 as amt_paybill
        FROM dbpay.tb_pay_bill p, dbpay.tb_paybillserial q
        WHERE p.oid_billno = q.oid_billno
        AND p.col_accttype = 2
        AND p.col_type = 1
        AND p.stat_bill = '4'
        AND q.pay_stat = 1
        AND q.col_stat = 1
        AND p.col_custid = %s
        AND q.date_acct = %s) as revok) D"""
try:
#连接MySQL数据库
  connDB= MySQLdb.connect("192.168.1.6","root","root","test" )
  connDB.select_db('test')
  curSql1 = connDB.cursor()
#查询商户
  curSql1.execute(sqlStr1,checkAcc_date)
  payCustID = curSql1.fetchall()
  if len(payCustID) < 1:
    print ('No found checkbill data,Please check the data for %s!' %checkAcc_date)
    exit(1)
  for row in payCustID:
      custid = row[0]
#创建汇总日账单文件名称
      fileName = '%s/JYMXSUM_%s_%s.csv' %(fileDir,custid,checkAcc_date)
#判断文件是否存在, 如果存在则删除文件,否则生成文件！
      if os.path.exists(fileName):
        os.remove(fileName)
      print 'The file start generating! %s' %time.strftime('%Y-%m-%d %H:%M:%S')
      print '%s' %fileName
#打开游标
      curSql2= connDB.cursor()
#执行SQL
      checkAcc_date = yestoday.strftime('%Y%m%d')
      curSql2.execute(sqlStr2,(custid,checkAcc_date,custid,checkAcc_date,custid,checkAcc_date,custid,checkAcc_date,c
ustid,checkAcc_date,custid,checkAcc_date,custid,checkAcc_date,custid,checkAcc_date))
#获取数据
      datesumpay = curSql2.fetchall()
#打开文件
      outfile = open(fileName,'w')
      for sumpay in datesumpay:
        totalNum = sumpay[0]
        succeedNum = sumpay[1]
        succeedAmt= sumpay[2]
        returnNum = sumpay[3]
        returnAmt = sumpay[4]
        revokeNum = sumpay[5]
        revokeAmt = sumpay[6]
#生成汇总日账单文件
        outfile.write('%s|%s|%s|%s|%s|%s|%s\n' %(totalNum,succeedNum,succeedAmt,returnNum,returnAmt,revokeNum,revo
keAmt))
      outfile.flush()
      curSql2.close()
  curSql1.close()
  connDB.close()
  print 'The file has been generated! %s' %time.strftime('%Y-%m-%d %H:%M:%S')
except MySQLdb.Error,err_msg:
  print "MySQL error msg:",err_msg

希望本文所述对大家Python程序设计有所帮助。

原文链接：http://blog.csdn.net/guoyjoe/article/details/45841221

  • Python
  • mysql
  • CSV
  • 数据库表

    • 延伸 · 阅读

    精彩推荐
    最近更新
    编辑推荐
    阅读排行
    热门标签
    2048 　 6006 　 contextlib 　 SLOTS 　 MELIAE 　 FEEDPARSER 　 暂存 　 持久性管理 　 pickle模块 　 THREADING 　 reduce 　 nignx 　 装饰器 　 函数式编程 　 兔子毒药 　 监控文件 　 流量监控 　 Web框架 　 办公工具 　 PIL库 　 高斯模糊 　 wxPython 　 import 　 自定义模块 　 Python开发 　 元类 　 metaclass 　 魔术方法 　 DNSPod 　 动态解析域名 　
    © 2019-2023 脚本之家 | 服务器之家(www.zzvips.com)旗下站点 版权所有关于我们联系我们版权申明网站地图