PLS-00401

Error: PLS-00401: different column types between cursor SELECT statement and return value found at 'string'

Causa: In a cursor declaration, a return type (such as RETURN emp\%ROWTYPE) was specified, but a returned column value and its corresponding select-list item have different datatypes.

Acción: Change the cursor return type or the select list so that each returned column value and its corresponding select-list item have the same datatype.