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Define page.
The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
The basic merits of decomposition. The Advantages of Decomposition 1. Separate person can work on each subsystem. 2. A particular software engineer can specialize in a
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
give some example real life situation where DBMS are most suitable
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What are the Constituents of File? Also elaborates all the possible file operations? A file is organised logically as sequence of record. These records are mapped onto disk blo
Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e
Write short note on Events Events consist of inputs, interrupts, decisions and actions performed by any external device or users. Every event always has a sender and receiver.
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