lsnrctl status结果

Service "pdb1" has 2 instance(s).
Instance "zxp", status READY, has 1 handler(s) for this service...
Instance "zyh", status READY, has 1 handler(s) for this service...

两个CDB: zxp和zyh, 每个里面都有个叫pdb1的PDB。

那么tnsnames.ora里如何写呢？

PDB1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = pdb1)
)
)

总不能只写一个吧。那么有无可能某一个PDB1把service名改了，以区别开来？如果改，怎么操作请给给具体方法