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What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
Name the three major set of files on disk that compose a database in Oracle. There are three main sets of files on disk that compose a database. All the files are binary. These
what is un ordered and ordered file managment?
to develop elrctronic database from manual forms
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
What are the General Transformation Rules for Relational operations? Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE 1. E
Modular growth: In distributed environments, it is simple to expand. Latest sites can be added to the network without affecting the operations of other sites, as they are somewhat
Advantages of Observation Methods: Bailey has pointed out four advantages of observation: 1. Superior in Data Collection on Non Verbal Behavior: When a person a opi
What is a SELECT operation? The select operation selects tuples that please a given predicate. We use the lowercase letter σ to denote selection.
need a DBMS system on any data for assignment.
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