In the Toad Editor using the following query with a bind variable:
select :AMOUNT FROM DUAL
And then entering the following variable information:
:AMOUNT Type=NUMBER, Direction=In, Value:Literal=1.23
Will cause the following error:
"1.23" is not a valid integer value
WORKAROUND:
None.
STATUS:
Waiting for a fix in a future release of Toad for Oracle.