python程序设计_python程序文件的扩展名是?

需求： 由于oracle news_info新闻表 正文content字段值太长，超出varchar字段长度，因此修改数据类型为CLOB类型, 通过cx_Oracle插入数据到oracle中

操作实例如下：

def insert_data2oracle():
	try:
		oracle_address_info='127.0.0.1|1521|scott|tiger|ORCL'
	    ip, port, user, pwd, sid = oracle_address_info.split('|')
	    url = user + '/' + pwd + '@' + ip + ':' + port + '/' + sid
	    print('oracle uri:' + url)
	    conn = cx_Oracle.connect(url)
	    cursor = conn.cursor()
	
	    sql = 'insert into news_info(ID,CONTENT,CREATE_BY,CREATE_TIME, DATA_VALIDITY) VALUES(:ID,:CONTENT,:CREATE_BY,:CREATE_TIME, :DATA_VALIDITY)'
	    
	    # 申明一个CLOB类型对象
	    clob_data = cursor.var(cx_Oracle.DB_TYPE_CLOB)
	
	    ConTENT = '这是一个长文本'
		
		# 将content值存入clob对象中
	    clob_data.setvalue(0, CONTENT)
	    # print(clob_data)
	
	    data = {'ID': '123', 'CONTENT': clob_data, 'CREATE_BY': 'admin',
	            'CREATE_TIME': datetime.now(),
	            'DATA_VALIDITY': 1}
	
	    print(data)
	    cursor.prepare(sql)
	
	    cursor.execute(None, data)
	    conn.commit()
    expect Exception as e:
    	print('exception message is %s' % e)
    finally:
	    cursor.close()
	    conn.close()

参考：
Python通过cx_Oracle插入clob类型数据
cx_Oracle官网 Streaming LOBs (Write)