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What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
Consider the 1ollowin8 relation: CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., crui
Define and differentiate between ordered indexing and hashing. Ans: Ordered indexing: To gain fast random access to records in a file, we can make of an index structure. Every
in case of functional dependencies how we get the higher normal form.
what is data link layer
What are the DBMS languages? Explain. Ans: a) Data Definition Languages (DDL): It is employed to specify database schema for example CREATE DROP statements etc. b) Dat
Describe about Use Case and external case in DFD The processes are transformed those into the Use Case and external case in DFD has same characteristics which of an actor in O
Give a sample of the Dynamic Model. The sample of dynamic model is given below: Dynamic model for the car: Brake and Accelerator Brake or Applies Accelerator
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
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