Answer Posted / chaitra

Types are definitions, i.e they do not hold memory space.
They cannot be used directly as variables, they have to be
declared before using in the code.

Data are declaration, i.e they hold memory space. They can
be used directly as variables in the code.

Ex :

Type : a type C.
DATA : b type C.


now, b can be directly used in the code directly eg:
IF b is initial .
...
ENDIF.

But 'a' cannot be used, as it is just a definition, it has
to be declared before being used.

DATA: x type a.

Now x is of type a and occupies memory space and can now be
used in the program.

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