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What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Distributed And Client Server Databases Introduction This unit tells the distributed database systems which are primarily relational and one important execution model: the
Describe substring comparison in SQL. For the relation Person (name, address), write a SQL query that retrieves the names of people whose name starts along with ‘A' and address co
what is Nested relational model? Explain with examples.
Evaluate, compare and contrast the two methods of relational database design namely top down method and Bottom up method. What will be your choice if you are asked to select a meth
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Consider the following relations: BRANCH( bno, street, area, city, pcode, Tel_no, Fax_no) STAFF( Sno, Fname, Lname, address, position , salary, bno) Express the subsequent qu
Define the five basic operators of relational algebra? Five basic operators of relational algebra are: 1. Union (∪∪∪∪) - Selects tuples which are in either P or Q or in both
Need 2 projects completed in 3NF format.
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
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