ORA-ERRORS

Hi, Sometimes You can get “TNS-12502: TNS:listener received no CONNECT_DATA from client  ” error.

Hi, Sometimes You can get “TNS-12500: TNS:listener failed to start a dedicated server process  ” error.

Hi, Sometimes You can get “TNS-12225: TNS:destination host unreachable  ” error.

Hi, Sometimes You can get “TNS-12224: TNS:no listener  ” error.

Hi, Sometimes You can get “TNS-12221: TNS:illegal ADDRESS parameters  ” error.

Hi, Sometimes You can get “TNS-12203: TNS:unable to connect to destination  ” error.

Hi, Sometimes You can get “TNS-12171: TNS:could not resolve connect identifier: string  ” error.

Hi, Sometimes You can get “TNS-12170: TNS:Connect timeout occurred ” error.

Hi, Sometimes You can get “TNS-12162: TNS:net service name is incorrectly specified ” error.

Hi, Sometimes You can get “TNS-12154: TNS:could not resolve the connect identifier specified ” error.