SAP NetWeaver AS ABAP Release 740, ©Copyright 2014 SAP AG. All rights reserved.
No Definition of Interface Parameters with TABLES
In ABAP Objects, the following statement causes an error message:
METHODS meth TABLES p1.
Correct syntax:
METHODS meth CHANGING p1 LIKE itab.
Reason:
Internal tables are passed like all data objects as IMPORTING,
EXPORTING, CHANGING, or RETURNING parameters.