PLS-00383: type mismatch found at 'string' inside an IN or
NOT IN clause

Answer Posted / guest

Cause: In a test for set membership such as X NOT IN (SELECT
Y ... ), the expressions X and Y do not match in datatype,
and it is unclear which implicit conversion is required to
correct the mismatch.

Action: Change the expressions so that their datatypes
match. You might want to use datatype conversion functions
in the select list.

Please add more information about this Error

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