primary key, Database Management System

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Express the following queries in SQL: (a) Write the SQL code that will create ALL the four tables given in the appendix. Your answer should not contain the primary key and

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Describe an data dictionary? A data dictionary is a data structure which keeps meta data about the structure of the database ie. the schema of the database.

Sparse and dense indexes, Sparse and Dense Indexes These indexes in pri...

Sparse and Dense Indexes These indexes in principle are the similar as that of indexes used at the back of the book. The key facts of the indexes are: They are arranged

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Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.

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Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages

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What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.

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(a)    Provide the description of the following ODMG schema in the Object Definition Language (ODL). (b)   Based on the above object database, write the following queries i

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