cx_oracle dsn连接方法,可测试数据库双机

import cx_Oracle
import time

while true:
	db_pool = cx_Oracle.SessionPool('rig', 'xtyw263sep', 'RWDB1', 1, 3, 1)
	conn = db_pool.acquire()   #用自己的实际数据库用户名、密码、主机ip地址 替换即可
	curs=conn.cursor()
	print(curs)
	curs.close()
	conn.close()
	time.sleep(2)

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转载自blog.csdn.net/yingcly003/article/details/83304724