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Support by Adding Indexes
Multiple indexes can be used to access a data file by multiple access paths. In such a scheme only single copy of the data is consider, only the number of paths is added with the use of indexes. Let us talk about two main approaches in this category: Multi-List file organisation and Inverted file organisation.
Differentiate between join and outer join? Outer joins return all rows from at least one of the tables or views mentioned within the FROM clause, as long as those rows get toge
discuss the array implementation of a stack.
Submit the table creation statements (including constraints) for the Database Model. Submit them all in a single script file. Also submit a document explaining what test data yo
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
Some disadvantages of File Oriented System ?
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in o
Explain Superkey Ans: A superkey is described in the relational model of database organization like a set of attributes of a relation variable for which it holds that in all re
what is attribute is attribute inheritance in dbms?
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