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What functions does a data dictionary perform?
In a (DBMS)data management system, the principal functions performed by the data dictionary are
What is Multivalued Attribute? Multivalued Attribute - Multivalued attribute might have more than one value for an entity. For instance, PreviousDegrees of a STUDENT.
Determine the advantage of object-orientation Finally, object-orientation has advantage of continuity throughout analysis, persistent representation and design implementation.
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
List the steps for converting state diagram to the code. a) Finding major control path b) Finding the conditional statements c) Finding the loops d) Finding error ro
Define decision tree classifiers? As the name suggests decision tree classifiers use a tree: Every leaf node has an associated class, and every internal node has a predicate as
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
The following data are required to be stored by a family physician. Family#, FamilyAddress, Patient#, PatientName, ServiceCode, ServiceFee, ServiceDate A family can have seve
Describe the development process of Object oriented methods Object oriented methods have roots which are strongly anchored back in the 60s, functional and structured methods we
Breaking into Subsystems Decomposition is a significant technique for coping with complexity based on idea of divide and conquers. In dividing a problem into sub problems, the
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