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give me a diagram about physical or internal level
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
What do you mean by Correlated subquery? Subqueries, or nested queries, are used to bring back a set of rows to be used by the parent query. Depending on how the subquery is writ
explain the mapping constraints
If R1 and R2 are two union compatible relations or functions, then the result of R3 = R1 ∩R2 is the relation that contains all tuples that are in both the relations In other words,
In how many parts events are classified Events are classified as four types in UML 1. Signals 2. Calls 3. Passing of Time 4. Change in State
Describe in brief about DBMS ?
What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) : (1) Data Redundancy and Inconsistency: Since differen
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
Due date for May 8
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