Python实现Mysql数据统计

import pymysql
import xlwt
excel=xlwt.Workbook(encoding='utf-8')
sheet=excel.add_sheet('Mysql数据库')
sheet.write(0,0,'库名')
sheet.write(0,1,'表名')
sheet.write(0,2,'数据条数')
db=pymysql.connect('192.168.1.74','root','123456','xx1')
cursor=db.cursor()
sql="select TABLE_SCHEMA as 'database',TABLE_NAME as table_name from information_schema.TABLES where TABLE_SCHEMA in ('my1','my2','t1','xx1');"
i=0
try:
	cursor.execute(sql)
	res1=cursor.fetchall()
	for row in res1:
		database=row[0]
		table=row[1]
		c1=row[0]+'.'+row[1]
		c2='select count(*) from %s'%c1
		try:
			cursor.execute(c2)
			res2=cursor.fetchall()
			for num in res2:
				count=num[0]
				i=i+1
				sheet.write(i,0,database)
				sheet.write(i,1,table)
				sheet.write(i,2,count)
		except:
			print('Error,Please check your code')
except:
	print('Error,Please check your code')
excel.save('C:\\Users\\user\\DeskTop\\mysql.xls')
db.close()