A relational database management system (DBMS) from Oracle, which runs on more than 80 platforms. Introduced in the late 1970s, Oracle was the first database product to run on a variety of platforms from micro to mainframe. Starting in 1999 with Version 8

The specific group: ORA Messages

Oracle Exception Messages

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ORA-12203TNS:a célhellyel nem létesíthetõ kapcsolat
Cause:Verify that the net service name you entered was correct. Verify that the ADDRESS portion of the connect descriptor which corresponds to the net service name is correct. Ensure that the destination process (for example the listener) is running at the remo
Action:Invalid address specified or destination is not listening. This error can also occur because of underlying network or network transport problems.
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