1.Submitted By: DeepKaur Hierarchical Data Model v/s Network Data Model 1 DBMS

2. Why they Are Important? What is Model? 2 DBMS 3. Hierarchical Data Model Network Data Model E-R Data Model Types Of Data Models G.M D.G.M Sales dep. Adv. Dep. D.G.M Q.M.D 3 DBMS 4. Hierarchical Model v/S Network Model Having Relationship like 1:1 and 1:M But M:M relation Cant Be expressed. Simple Useful for Hierarchical character in the DBMS. M:M Can Be expressed. Complex due to the use of Pointers. Useful For Representing M:M Relationships. 4 DBMS 5. Operations are : Insertion Updation Deletion Retrieve Difference On The basis Of Operations 5 DBMS 6. HDM Child Cant Be Inserted Without Parent. NDM Free From Insert Anomaly. HDM Updating the data is complex. NDM Easy To Update. Insertion & Updation Opreation 6 DBMS 7. HDM Deletion Of (P) Record (C) will also delete. NDM Free From deletion anomalies. HDM Retrieve Algos are Complex. NDM Retrieve algos are less complex. Thanks Deletion & Retrieve Operation 7 DBMS