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How to create a table from existing table?
Create table as
e.g, To create a new table ‘N_emp' with employee names and their identification numbers only from employee table, statement is to create table N_emp as select empname, empid from employee
Process-oriented decompositions Process-oriented decompositions divide complex process, task or function into simpler sub processes until they get simple enough to be deal
Data Fragmentation "Fragmentation includes decomposing the data in relation to non-overlapping component relations". Why do we require fragmenting a relation?
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
How is the database organised in Oracle? Database organized within Oracle in terms of table and table holds attributes and values. A database consists of one or more logical
Entities Let us first be aware of the question: What are entities? An entity is an object of concern used to show the things in the actual world, e.g., table, car, bo
Process of Adjustment of inheritance During object design, inheritance is readjusted by rearranging classes and operations, and abstracting common behaviour.
online eductional management system ke diagram
explain the level architectures of the database management system
i need to submit in this topic.
What is OCR? OCR (Optical Character Recognition) is a technology that enables you to change different types of machine-readable documents, like scanned paper documents, PDF fil
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