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Define page.
The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Draw an ER diagram for company''s database schema
random file sharing
What is Relational calculus? Relational calculus is a Non- Procedural language.
A model in database system mostly defines the organisation of data or structure and a set of operations on that data. Relational model is a easy model in which database is represen
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
Relational Algebra is a set of basic operations used to influence the data in relational model. These operations allow the user to specify basic retrieval request. The result of re
What is the use of RAID? A variety of disk-organization methods, collectively called redundant arrays of independent disks are used to better the performance and reliability.
what is er digram given that example of hospital,bank and library er digram.
What is difference between TRUNCATE and DELETE? - Truncate can't be rolled back whereas Delete can be. - Truncate keeps the lock on table whereas Delete keeps the lock on ea
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
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