Problem in creating a reference

Hi,

When I am trying to create a reference to a table,

It give a the error message: <b>The type specification of the "table" is incomplete</b>

at the create statement.

PARAMETERS: p_table TYPE dd02l-tabname default 'zemp3'.
DATA: lv_dref   TYPE REF TO data.
CREATE DATA lv_dref TYPE table of (p_table).

The system that I am working on is 46c,