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Which database level is closest to the users?
External database level is closest to the users.
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
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
Design a generalization–specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles, passenger cars, vans, and buses. Justify your placement of attrib
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
milestone assignment
Log based recovery: Let us first describe the term transaction log in the context of DBMS. A transaction log is a record in DBMS that remains track of all the transactions of a dat
object oriented database
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole t
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Deletion Anomalies: Loss of important Information: In some cases, useful information may be lost when a tuple is deleted. For instance, if we delete the tuple corresponding to stu
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