ORA-06559

Title :

ORA-06559 wrong datatype requested, string, actual datatype is string

Cause :
The sender put different datatype on the pipe than that being requested (package DBMS_PIPE). The numbers are:
- 6 - number
- 9 - char.
- 12 - date

Action :
Check that the sender and receiver agree on the number and types of items placed on the pipe.