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Using Relational Algebra which query finds customers, who have a balance of over 1000 ?
Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find customer.
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
What are called jukebox systems? Jukebox systems have a few drives and numerous disks that can be loaded into single of the drives automatically.
External failure : A failure can also result because of an external cause, such as earthquakes, fire, floods, etc. The database must be duly backed up to avoid troubles occurring d
Compute the closure (F+) for the following set of the functional dependencies defined on R(a,b,c,d), where F - {c→ a, ab → d, a → b, d → c}, i.e. what are all of the FDs implied b
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In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
State about the Activity Diagram Activity diagrams show flow from one activity to other. It is an ongoing non atomic execution within a state machine. Activity finally results
Explain the structure of well formed formulae in relational calculus. Ans: a. An atom is a formula b. If P1 is a formula, after that so are ¬P1 and (P1) c. If P1 and P2 a
what are the type of the database
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