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1. Create the tables for the play-scheme database as specified in the TMA.
2. Enter the data as given in the spreadsheet.
3. Create queries to retrieve specified information
4. Extend the database
5. Write a report documenting your work.
Full details of each of these requirements are given below. Read through them carefully to
ensure that you understand what is required before you start work.
Completing the FMA
You should work on your FMA both during and after class. Begin your work early, as the FMA is a substantial task that requires much planning and effort to complete satisfactorily.
Saving Derived Attributes to Avoid Re-computation Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define
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
vertical fragmentation
All edges of a cube are expanding at a rate of 6 centimeters per second. How fast is the surface area changing when each edge is (a) 2 centimeters and (b) 10 centimeters?
Explain the main advantages of DBMS over File Oriented System ?
Probelm: (a) A distributed database (DDB) is a collection of multiple, logically interrelated databases which are physically distributed over a computer network" (i) Give a
Increased parallelism : Since the replicated date has several copies a query can be distributed or can be answered from the smallest loaded site. Also, with more replicas you have
Improved availability: The data in a distributed system may be replicated so that it is at more than one site. Thus, the failure of a node or a communication link does not necessar
what are the topics in data management
Differance between DDL and SDL? DDL and SDL - The data definition language (DDL) is used through DBA and database designers to describe internal schema, conceptual schema, and
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