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What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
After the completion of the logical model the physical model is to be made. The oracle 10 G will be used as a database server and all the tables with their column are created and i
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
For Colorado customers calculate the number of single products ordered. If a product is purchased on multiple orders, it should be counted only single time. The result should conta
What is system log? What are the entries? Ans: The system log that is generally written on stable storage contains the redundant data required to recover from volatile
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
what are information system hirarchy?
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
Design a gennalization and specialization hierarchy for an automobile sales company
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