describe and differentiate the two fundamental structures of network data model?
What are different constraints in network data model? Describe.
What do you mean by the term constraints? How the insertion options constraints are distinct from the retention option constraints?
Describe the data definition in network data model by using illustrations.
How to prepare programs which manipulate a network database-comprising such tasks as searching for and retrieving records from the database; inserting, deleting and modifying records; and connecting and disconnecting records from the set occurrences.
prepare detail notes on:
a) Data manipulation language
b) Host language and data sublanguage