Oracle Error Message
PLS-00385: type mismatch found at ‘string’ in SELECT…INTO statement
Reason for the Error
The expressions to the left and right of the INTO clause in a SELECT…INTO statement do not match in datatype, and it is unclear which implicit conversion is required to correct the mismatch.
Solution
Change the expressions so that their datatypes match. You might want to use datatype conversion functions in the select list.