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PLS-01913: : instance must of be of type 'string' or one of
its subtypes



PLS-01913: : instance must of be of type 'string' or one of its subtypes..

Answer / guest

Cause: The run-time type of the instance is the not declared
type or one of its subtypes. e.g. TREAT(supertype AS
subtype) fails.

Action: Catch the exception.

Please add more information about this Error

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