What does the ODBC error 08004, particularly in conjunction with ORA-12154, indicate?

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What does the ODBC error 08004, particularly in conjunction with ORA-12154, indicate?
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ODBC error 08004 often signifies a connection failure in the ODBC driver. When paired with Oracle's ORA-12154, the specific issue is that the TNS (Transparent Network Substrate) cannot resolve the provided connect identifier, essentially meaning the client can't locate or communicate with the Oracle database server.