遇到情况:
tnsnames.ora 中的XX.XX.XX.XX 已经不是原来的地址了(搬迁了,或者业务变动改成其他的了,手头的太已经过时了.需要向业务索取最新的地址)
ORCL_XX = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = XX.XX.XX.XX)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = XX.XX.XX.XX)(PORT = 1521)) (LOAD_BALANCE = no) ) (CONNECT_DATA = (SERVICE_NAME = wzwsdb) ) )