1 import os
2 import cx_Oracle
3 import openpyxl
4 import time
5 import csv
6 import xlrd
7 from matplotlib import pyplot as plt
8 from matplotlib import font_manager

 1 import os
 2 os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8' #字符转换，如果配置了环境变量这里可用不要
 3 os.environ['TNS_ADMIN'] = 'D:\\Python\\instantclient_12_2' #oracle客户端，如果配置了环境变量这里可用不要
 4 os.environ['Path'] = 'D:\\Python\\instantclient_12_2' #自己电脑oracle客户端所在位置
 5 
 6 import cx_Oracle
 7 
 8 # 方法一：用户名、密码和监听分开写
 9 #   conn=cx_Oracle.connect('username/password@host/orcl')    #连接数据库
10 
11 # 方法二：用户名、密码和监听写在一起
12     conn = cx_Oracle.connect('username/password@host:1521/ORCL')  # utf-8显示中文
13 
14 #方法三：配置监听并连接
15 #   tns=cx_Oracle.makedsn('host',1521,'orcl',encoding = 'utf-8',nencoding = "UTF-8")
16 #   conn=cx_Oracle.connect('username','password',tns)
17 
18 curs=conn.cursor()          #获取cursor
19 printHeader = True # include column headers in each table output
20 sql="select b.name,sum（a.tot_qty） from m_retail a ,c_store b " \
21     "where a.c_store_id=b.id and a.billdate=20200923 group by b.name" #sql语句
22 x=curs.execute(sql)                         #使用cursor进行各种操作
23 rows= x.fetchall()
24 for row in rows:
25     print(row)

 1 def export_excel(sql,fileName):
 2     rr = curs.execute(sql)
 3     rows = curs.fetchall()
 4 
 5     #获取字段名
 6     title = [ i[0] for i in curs.description ]
 7 
 8     #创建excel表
 9     wb = openpyxl.Workbook()
10     ws = wb.active
11 
12     #插入字段名到第一行
13     for c in range(len(title)):
14         ws.cell(1,c+1,value = title[c])
15 
16     #写入查询数据
17     for r in range(len(rows)):
18         for c in range(len(rows[r])):
19             if rows[r][c]: #值不为空时写入，空值不写入
20                 ws.cell(r+2,c+1,value=str(rows[r][c])) #str()防止用科学计数法写入造成信息丢失
21     #
22     # #保存sql脚本
23     # ws1 = wb.create_sheet('sql')
24     # ws1.cell(1,1,value=sql)
25     #
26     wb.save(fileName)
27     wb.close()
28     curs.close()
29 
30 if __name__ == '__main__':
31 # 方法一：用户名、密码和监听分开写
32 #   conn=cx_Oracle.connect('username/password@host/orcl')    #连接数据库
33 
34 # 方法二：用户名、密码和监听写在一起
35     conn = cx_Oracle.connect('username/password@host:1521/ORCL')  # utf-8显示中文
36 
37 #方法三：配置监听并连接
38 #   tns=cx_Oracle.makedsn('host',1521,'orcl',encoding = 'utf-8',nencoding = "UTF-8")
39 #   conn=cx_Oracle.connect('username','password',tns)
40 
41     curs= conn.cursor()
42     #打开sql文件获取sql语句
43     with open('零售查询.sql',encoding= 'utf-8') as sql_0:#encoding= 'utf-8'
44         sql = sql_0.read()
45     # sql = "select b.name as 店仓,sum（a.tot_qty） as 数量 from m_retail a ,c_store b " \
46     #       "where a.c_store_id=b.id and a.billdate=20201010 group by b.name"
47     cur_date = time.strftime("%Y-%m-%d", time.localtime())#"%Y-%m-%d-%H%M%S",取值日期
48     wjm='零售2'+cur_date+'.xlsx'
49     export_excel(sql,wjm)
50     conn.close()

 1 # 打开文件
 2 data = xlrd.open_workbook(wjm)
 3 cur_month = time.strftime("%m", time.localtime())#取值月份
 4 # 查看工作表
 5 # data.sheet_names()
 6 # print("sheets：" + str(data.sheet_names()))
 7 # 通过文件名获得工作表,获取工作表Sheet
 8 # table = data.sheet_by_name(Sheet1)
 9 table =data.sheet_by_index(0)#默认读取sheet1
10 
11 cel_A1=table.cell(0,0)#取指定单元格的值
12 cel_B1=table.cell(0,1)
13 col_A=table.col_values(0,1)#取指定列的值
14 col_B=table.col_values(1,1)#
15 col_B = [ int(x) for x in col_B ]#文本转数字
16 # print(cel_A1)
17 # print(col_B)
18 # print("整行值：" + str(table.row_values(0)))
19 # print("整列值：" + str(table.col_values(0,1)))
20 # print("整列值：" + str(table.col_values(1,1)))
21 # print(col_A)

 1 #设置绘图时的，中文字符显示
 2 #my_font=font_manager.FontProperties(fname=r"C:/Windows/Fonts/simhei.ttf", size=18)
 3 plt.rcParams ['font.family']=['sans-serif']
 4 plt.rcParams ['font.sans-serif']=['simhei' ]
 5 plt.rcParams['font.size'] = '20'
 6 plt.rcParams['xtick.labelsize']=16
 7 plt.rcParams['ytick.labelsize']=16
 8 
 9 #设置图形大小
10 plt.figure(figsize=(20,8),dpi=80)
11 
12 #绘制条形图
13 plt.bar(range(len(col_A)),col_B)
14 
15 #设置x轴
16 plt.xticks(range(len(col_A)),col_A)
17 
18 plt.title(cur_month+"月份销售分布") #添加标题
19 plt.savefig("./sig_size3.png")#将图形保存到工程目录
20 
21 plt.show()