python 监控oracle 数据库

import cx_Oracle
import os

db = cx_Oracle.connect('**********')
print "Show Oracle Version: " + db.version

cursor = db.cursor()
sql = "select  d.deployment_id from dpl_deployment d join dpl_deployment_file f on d.deployment_id = f.deployment_id where d.org_scope like '*:*' and (relative_path like '%merch%' or relative_path like '%item%') order by deployment_id desc"

cursor.execute(sql)
data = cursor.fetchall()
cursor.close()
db.close()

print "the current dir and file: " +os.getcwd()
os.listdir('/root/code')

hf = open("./sql.out", 'r')
history_num = hf.read()
hf.close()

f = open("./sql.out", "w")
for row in data:
    for num in row:
        f.write(str(num))
        f.write("\n")
        print num
f.close()

cf = open("./sql.out", 'r')
current_num = cf.read()
cf.close()

if history_num==current_num:

    print 'no bad file found'
else:
    print 'bad file found'