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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.
Explain the ANSI SPARC architecture The three-schema architecture is as well known as ANSI SPARC architecture. The aim of the three-schema architecture is to separate the user
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
Determine the term- Active values An active value is that has dependent values. Every dependent value registers itself with active value that contains a set of dependent values
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
Define Join and Outer Join and differentiate between them. Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition. Oute
Advantages and disadvantages of icloud based storage
differences between a classified catalog and a dictionary catalog
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
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