class&object, Database Management System

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What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files

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What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide

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What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.

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Australian Bureau of Statistics (ABS) provides retail data for different groups and different states as well as the aggregate numbers. Table 11 " Retail Turnover, State by Industry

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Explain Data Sublangauges ? Data sublanguage: In relational database theory, the term sublanguage, first used for this purpose through E. F. Codd in the year of 1970, refers t

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