ORA-12557: TNS:protocol adapter not loadable

 C:\Users\xstoreadm>sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Tue Dec 6 07:19:43 2022

Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.

ERROR:

ORA-12557: TNS:protocol adapter not loadable



Fix:  set the  correct environment


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