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What is a state chart diagram?
State diagrams (State Chart Diagram) explain all possible states that a particular object can get into, and how object's state changes as result of events which reach the object. It states all the possible states and the transitions.
What is the difference among a primary index and a secondary index? Primary Index: A primary index is an ordered file whose records are of fixed length along with two fields.
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
Define Database layer? The database layer defines the data formats used in the database.
#question.ERD of any car
#what is cursor its uses ? Explain it
explain cascading rollback
What are the several kinds of the update operations on relations? Also explain the constraints on these update operation. Give instance in support of your answer. There are th
Given the following set of functional dependencies {cf?bg, g?d, cdg?f, b?de, d?c} defined on R(b,c,d,e,f,g) a.Find a non-redundant cover. b.Find a canonical cover.
#question.explain diversity and magnitude of organic compounds and general properties?
what is the need of a log in dbms
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