TYPE-POOL tpool.
The TYPE-POOL statement introduces a table group.
You
can only maintain type groups in the ABAP Dictionary (Transaction SE11). The name
tpool must correspond to the name in the ABAP Dictionary.
You may only define types and constants in a type group. The name of each type and constant must begin
with the name of the type group followed by an underscore. You declare the types and constants of a
type group using the TYPE-POOLS statement.
TYPE-POOL ABCDE.
TYPES: ABCDE_PACKED TYPE P,
ABCDE_INT TYPE I.
Data Types in the ABAP Dictionary