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Troubleshooting of SQL plus logon failures caused by su switching in Oracle

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Troubleshooting of SQL plus logon failures caused by su switching in Oracle

Problem description:
The oracle database in the production environment suddenly fails to log on, and the oracle database in the rlwrap production environment suddenly fails to log on. rlwrap sqlplus "/as sysdba" reports the following error: rlwrap
[Oracle @ localhost root] $ rlwrap sqlplus "/as sysdba"
5. Perform a soft connection to sqlplus.
[Oracle @ localhost root] $ exit
6. Set ORACLE_SID
[Oracle @ localhost root] $ exit
10. OK. An error is returned when you try to log on with a non-sys account.
[Oracle @ localhost ~] $ Rlwrap sqlplus "plas_prd/plrd_1628 @ pxxerxxs as sysdba"
OK. The logon is successful.

Conclusion,
MPMD2 =

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