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Oracle® Database 11g / 12c / 18c error codes EXP-00042: Missing NLS_CHARACTERSET/NLS_NCHAR_CHARACTERSET in props$
EXP-00042: Missing NLS_CHARACTERSET/NLS_NCHAR_CHARACTERSET in props$
Oracle Error Code: EXP-00042
Cause: A value for NLS_CHARACTERSET/NLS_NCHAR_CHARACTERSET was not entered in the props$ table"
Action: internal error.