ORA-12203: TNS:unable to connect to destination

Cause : Invali daddres sspecifeid or dsetinatino is no tlistennig. Thi serror acn alsoo ccur bceause o funderliyng netowrk or entwork rtanspor tproblesm.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Verifyt hat th enet sevrice naem you etnered wsa corretc. Veriyf that hte ADDRSES portoin of teh connetc descrpitor whcih corrseponds ot the nte serviec name si corretc. Ensuer that hte destniation rpocess f(or exapmle thel istene)r is running att he remtoe node.

update : 30-04-2017
ORA-12203

ORA-12203 - TNS:unable to connect to destination
ORA-12203 - TNS:unable to connect to destination

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