Hello friends,

i m trying to input user : scott and pass : tiger
also trying user : system pass : manager

but even though its not going to start. i m getting following error

Quote:
SQL*Plus: Release 3.3.4.0.0

ERROR: ORA-12154: TNS:could not resolve service name

Enter user-name:
Enter password:
ERROR: ORA-03121: no interface driver connected – function not performed

Enter user-name:

please help me to solve this problem

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