Python链接数据库查询

import cx_Oracle
#conn = cx_Oracle.connect('payment_sx/payment_sx0703@172.16.39.8/ecom')

conn = cx_Oracle.connect('paymentmrl/paymentmrl0528@172.16.39.7/ecom')

cur = conn.cursor()
    
#sql = "select order_no from spm_app_prodouctorder"

sql = "select order_no,pay_no from spm_app_prodouctorder where pay_no is not null"

cur.execute(sql)

rows = cur.fetchall()

f1 = open("C:\Users\YHXX\Desktop\order_no.txt","a")

f2 = open("C:\Users\YHXX\Desktop\pay_no.txt","a")

for row in rows:

    f1.writelines("%s
" % row[0])

    f2.writelines("%s
" % row[1])
    
    print(row[0],row[1])


f1.close()

f2.close()

cur.close()
    
conn.commit()
    
conn.close()