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What is a SELECT operation?
The select operation selects tuples that please a given predicate. We use the lowercase letter σ to denote selection.
Create table employee and enter employee data in SQL? Consider the following relational schemas: EMPLOYEE (EMPLOYEE_NAME, STREET, CITY) WORKS (EMPLOYEE_NAME, COMPANYNAME, SAL
The primary key is selected from the
Define seek time. The time for repositioning the arm is known as the seek time and it enhances with the distance that the arm is known as the seek time.
how to find entities
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
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Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
Q. With the help of a suitable diagram gives module wise explanation of system architecture of DBMS. Sol. A Database management is a collection of interrelated data and col
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