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I have got the following error message: ORA-01012: not logged on
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<quote>
ORA-01012: not logged on
Cause: A host language program issued an Oracle call,
other than OLON or OLOGON, without being logged on to Oracle.
This can occur when a user process attempts to access the
database
after the instance it is connected to terminates,
forcing the process to disconnect.
Action: Log on to Oracle, by calling OLON or OLOGON,
before issuing any Oracle calls.
When the instance has been restarted, retry the action.
</quote>
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Any additional explanations and examples would be appreciated.
1. What (and where) do I have to do in my Pro*C/C++ program?
2. What don't I have to do in my Pro*C/C++ program?
Thanks in advance,
Alex
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