使用Python一键生成Oracle性能excel曲线图
1、cx_Oracle安装与使用
1.1 python 使用最新3.5.1 64位
1.2 Oracle 使用11g 32位
1.3 cx_Oracle使用5.2.1 与11g的Oracle与python一致
在cx_Oracle下载安装使用时候注意事项:
- 必须与选用的python与Oracle版本一致
- 当遇到报错,则需要冷静看一下 各服务 是否已经开启
1.4 cx_Oracle使用
import cx_Oracle
conn=cx_Oracle.connect('JGANG/JGANG@DATABASE') #建立Oracle连接
cursor=conn.cursor() #建立Cursor光标,用此执行SQL语句
cursor.execute('select distinct t.stationcode from TARGET_STATION t')
#执行SQL语句
row=cursor.fetchall() #调用cursor.fetchall()一次取完,cursor.fetchone()一次取一行
def GetInOutFlow(staName): #根据传入的车站名得到对应的车站进出站量
sqlstr="select t.time,t.innum,t.outnum from TARGET_STATION T where t.stationcode='{0}' order by t.time".format(staName)
cursor.execute(sqlstr)
InOutFlow=cursor.fetchall() #取出对应车站的进出站量
return InOutFlow
for x in row:
staName=x[0] #车站名字
InOutFlow=GetInOutFlow(staName)
print(InOutFlow) #不要直接打印将其保存到excel中
break
2、excel操作使用xlsxwriter模块
2.1 Python的Excel处理模块:XlsxWriter下载
2.2 XlsxWriter下载与安装
- cmd 下 输入 pip install wheel
- 到XlsxWriter.whl所在文件下,pip install 包名字.whl
2.3 XlsxWriter使用,使用看这
workbook = xlsxwriter.Workbook('filename.xlsx')
worksheet = workbook.add_worksheet() #()中可以加入名字
worksheet.write(0, 0, 'Hello Excel')
workbook.close()
2.4 制作折线图
import cx_Oracle
import xlsxwriter as xls
conn=cx_Oracle.connect('JGANG/JGANG@DATABASE') #建立Oracle连接
cursor=conn.cursor() #建立Cursor光标,用此执行SQL语句
cursor.execute('select distinct t.stationcode from TARGET_STATION t')
#执行SQL语句
row=cursor.fetchall() #调用cursor.fetchall()一次取完,cursor.fetchone()一次取一行
#xlsx文件操作
workbook=xls.Workbook('车站进出站信息.xlsx')
def GetInOutFlow(staName): #根据传入的车站名得到对应的车站进出站量
sqlstr="select t.time,t.innum,t.outnum from TARGET_STATION T where t.stationcode='{0}' order by t.time".format(staName)
cursor.execute(sqlstr)
InOutFlow=cursor.fetchall() #取出对应车站的进出站量
return InOutFlow
def Transposition(InOutFlow): #将InOutFlow转置,并放回
result=[]
colTime=[]
colIn=[]
colOut=[]
for row in InOutFlow:
colTime.append(row[0])
colIn.append(row[1])
colOut.append(row[2])
result.append(colTime)
result.append(colIn)
result.append(colOut)
return result
def Export(InOutFlow,staName): #将车站的进出站信息保存到xlsx中
worksheet=workbook.add_worksheet(staName)
bold=workbook.add_format({'bold':1})
#添加表头
headings=['时间','进站','出站']
worksheet.write_row('A1',headings,bold)
#添加内容
worksheet.write_column('A2',InOutFlow[0])
worksheet.write_column('B2',InOutFlow[1])
worksheet.write_column('C2',InOutFlow[2])
#创建新的图表,折线图
chart=workbook.add_chart({'type':'line'})
chart.add_series(
{
'name': '={0}!$B$1'.format(staName),
'categories': '={0}!$A$2:$A${1}'.format(staName,len(InOutFlow[0])+1),
'values': '={0}!$B$2:$B${1}'.format(staName,len(InOutFlow[0])+1),
})
chart.add_series(
{
'name': [staName,0,2],
'categories':[staName,1,0,len(InOutFlow[0])+1,0],
'values':[staName,1,2,len(InOutFlow[0])+1,2],
})
#添加表头和xy
chart.set_title({'name':'{0}站全天进出站量变化趋势'.format(staName)})
chart.set_x_axis({'name':'时间'})
chart.set_y_axis({'name':'人数(人)'})
#Set an Excel chart style. Colors with white outline and shadow.
chart.set_style(10)
# Insert the chart into the worksheet (with an offset).
worksheet.insert_chart('E2', chart, {'x_offset': 25, 'y_offset': 10})
for x in row:
staName=x[0] #车站名字
InOutFlow=Transposition(GetInOutFlow(staName))
#print(InOutFlow) #不要直接打印将其保存到excel中
Export(InOutFlow,staName)
workbook.close()
3、读取excel内容,xlrd下载
3.1 xlrd安装教程
下载xlrd文件后,解压到一个文件夹,然后cd到该文件夹,python setup.py install 进行安装
3.2 使用
import xlrd
#读取xlxs文件,将车站保存到内存
filename=r'{0}\车站名.xlsx'.format(currentPath)
data = xlrd.open_workbook(filename)
sheetname = data.sheet_names()
sheet = data.sheet_by_index(0)
rows = sheet.nrows
cols = sheet.ncols
staName=[]
for row in range(rows):
staName.append(sheet.row_values(row)[0])