ORA-12200: TNS:could not allocate memory
ORA-12201: TNS:encountered too small a connection buffer
ORA-12202: TNS:internal navigation error
ORA-12203: TNS:unable to connect to destination
ORA-12204: TNS:received data refused from an application
ORA-12205: TNS:could not get failed addresses
ORA-12206: TNS:received a TNS error during navigation
ORA-12207: TNS:unable to perform navigation
ORA-12208: TNS:could not find the TNSNAV.ORA file
ORA-12209: TNS:encountered uninitialized global
ORA-12210: TNS:error in finding Navigator data
ORA-12211: TNS:needs PREFERRED_CMANAGERS entry in TNSNAV.ORA
ORA-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA
ORA-12213: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA
ORA-12214: TNS:missing local communities entry in TNSNAV.ORA
ORA-12215: TNS:poorly formed PREFERRED_NAVIGATORS Addresses in TNSNAV.ORA
ORA-12216: TNS:poorly formed PREFERRED_CMANAGERS addresses in TNSNAV.ORA
ORA-12217: TNS:could not contact PREFERRED_CMANAGERS in TNSNAV.ORA
ORA-12218: TNS:unacceptable network configuration data
ORA-12219: TNS:missing community name from address in ADDRESS_LIST
ORA-12221: TNS:illegal ADDRESS parameters
ORA-12222: TNS:no support is available for the protocol indicated
ORA-12223: TNS:internal limit restriction exceeded
ORA-12224: TNS:no listener
ORA-12225: TNS:destination host unreachable
ORA-12226: TNS:operating system resource quota exceeded
ORA-12227: TNS:syntax error
ORA-12229: TNS:Interchange has no more free connections
ORA-12230: TNS:Severe Network error occurred in making this connection
ORA-12231: TNS:No connection possible to destination
ORA-12232: TNS:No path available to destination
ORA-12233: TNS:Failure to accept a connection
ORA-12234: TNS:Redirect to destination
ORA-12235: TNS:Failure to redirect to destination
ORA-12236: TNS:protocol support not loaded

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