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What is called query processing?
Query processing refers to the range of activities included in extracting data from a database.
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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
Explain the two types of participation constraint. 1. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
Project Description: This is going to be a School portal to handle each activities in school such as, School fees payment, online registration and every other payment, course re
i need help for assignment ..
The insertion of a tuple in the aim of reference does not cause any destruction. Though, insertion of a tuple in the relation in which, we has the foreign key, for instance, in ASS
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