Thank you so much for Responding,
Actuvally by using that code the Diagram looks like DataFlow Diagram
but itried the below one it's displaying
@startuml
left to right direction
SRC_FILE_NAME-->STAGINGNONFUNGIBLETABLE1
SRC_FILE_NAME-->PROJDEF1
CONSTANT-->STAGINGNONFUNGIBLETABLE
CONSTANT-->PROJDEF
@enduml
please help to get the DFD..