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Sometimes You can get “ORA-12638: Credential retrieval failed ” error.
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Tag Archives: ORA-28040
TNS-12203: TNS unable to connect to destination
Hi, Sometimes You can get “TNS-12203: TNS:unable to connect to destination ” error.
Read More »ORA-28040: No matching authentication protocol
You can get ” ORA-28040: No matching authentication protocol ” error because of Oracle Client incompatibility when you upgrade Oracle database from 11g to 12c or Oracle 18c, 19c,
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