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What is a view?
A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived from one or more tables.
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
OBJECTIVES After going through this unit you should be capable to: Explain the File Based system and its limitations; Explain the structure of DBMS; Explain the
How to draw an ER diagram to a finance companz
Consider the relation PERSON. If you want to display details of persons having age less than or equal to 30 than the select operation will be used as follows: σ AGE The resu
define lock conversion
Control as a State Machine Engine First let us define the state machine: "the state machine is a machine which is an object but not an application object. It is a part of lang
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
List some instances of collection types? a) sets b) arrays c) multisets
Why is database design important?
Explain Interblock gap? Interblock Gap - A track of a disk is separated into equal-sized disk blocks. Blocks are separated through fixed-size gaps, called as interblock gaps th
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