python上传下载BLOB类型的数据到oracle数据库

oracle9i数据库，python2.5，cx_Oracle-4[1].3.1-win32-9i-py25

#-*- coding:utf-8 -*-

import sys

import cx_Oracle

file = open(sys.argv[1], 'rb')

content = file.read()

file.close()

#Update BOLB

con = cx_Oracle.connect(“user”, “pass”, “TNS”)

cursor = con.cursor()

sql_update = "update t_soc_script t set t.content = :blobData where t.scripttype = 13"

cursor.setinputsizes(blobData=cx_Oracle.BLOB)

cursor.execute(sql_update, {'blobData':content})

cursor.execute('commit')

#read BLOB

sql_read = 'select t.scriptid,t.standsystemid,t.content from t_soc_script t where t.scripttype = 13 and rownum = 1'

num = 1

while (num):

cursor.execute(sql_read)

rs = cursor.fetchone()

if rs == None:

break

file = open('test_write.txt', "wb")

file.write(rs[2].read())

file.close()

num=num-1

cursor.close()

con.close()

参考：http://xufive.blog.163.com/blog/static/172326168201152992632106/