ABAP Source Code: Three approaches to define data objects

REPORT ZSOURCE0401.

* 1. Elementary types
DATA: CUSTOMER_NAME_1(25) TYPE C,
VENDOR_NAME_1(25) TYPE C.

* 2. Reference to an existing field
DATA: CUSTOMER_NAME_2(25) TYPE C,
VENDOR_NAME_2 LIKE CUSTOMER_NAME_2.

* 3. Reference to a non-elementary type
TYPES T_NAME(25) TYPE C.
DATA: CUSTOMER_NAME_3 TYPE T_NAME,
VENDOR_NAME_3 TYPE T_NAME.

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