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What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
What are the disadvantages of file processing system? The drawbacks of file processing systems are a) Data redundancy and inconsistency b) Complexity in accessing data
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
Question : (a) Data mining is one of the best ways to analyse data and using software method, hidden and unexpected patterns and relationships in sets of data can be extracte
Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
What is Alternate Key Alternate Key: This is the candidate key which is not taken as the primary key of the table. They are named so because although not the primary key, the
wh
What are data models? Explain it detail? Entity relationship model Rectangles Ellipse Diamonds Lines Relational model Relational model use a collection
how oracle can be used
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