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Define blocks?
The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
Which is another name for weak entity? Child is another name of weak entity.
What is Relational calculus? Relational calculus is a Non- Procedural language.
Explain nested relations? Nested relations The assumption of INF is a natural one in the bank examples we have considered. However, not all applications are best modelled
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
What is schema
Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company. SELECT EMPLOYEE_NAME,
Explain view in RDBMS? View - A view is a relation (virtual rather than base) and could be used in query expressions, which is, queries can be written by using the view as a re
what is inverted and multilist structure
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