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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
management information system based on functional organisation
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
a set of possible data value of an attribute is called??
Define instance and schema? Instance: Collection of data stored in the data base at a certain moment is Schema: The overall design of the data base is known as the data base
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
What are the physical characteristics of magnetic disks? Ans: A magnetic disk is a circular plate or platter of plastic or metal that is coated with magnetizable material lik
Evaluate, compare and contrast the two methods of relational database design namely top down method and Bottom up method. What will be your choice if you are asked to select a meth
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
How many physical thing?
Boyce-Codd Normal Form (BCNF) The relation NEWSTUDENT (Enrolmentno, Sno, Sname, Cname, Cno,) has every attributes participating in candidate keys as all the attributes are assu
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