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Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Write a short note on QBE? Stands for "Query By Example." QBE is a feature involved along with various database applications which gives user-friendly techniques of running da
CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., cruise control) that were sold at a de
What is equi join? Equi Join - It generates all the combinations of tuples from two relations which satisfy a join condition along with only equality comparison (=).
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growing phase and shrinking phase are disjoint, why ?
Define functional and multivalued dependencies. Ans: A functional dependency is a assets of the semantics of the attributes in a relation. The semantics point out how at
What are the advantages of creating a table from existing table?
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