type  refers data types
like refres exsisting variable like dataobjects

like is the key word which can assign memory for internal 
table which can degrade performance of appliction server.

``

type can be used to create data objects from 1) another 
data objects 2) dictionary 3)predifined types. In the same 
way like is used to create data objects from another data 
objects only, but like will not pass EPC (Extended program 
check).

type is used to refer to the  exisiting data type.
where as like is used to reference to the existing data type.

ex: data: name(6) type c,
          milk like name.