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In E-R diagram how generalization is represented?
in E-R diagram generalization is represented by Triangle shape.
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
what is database management system? & why it is required?
Funky Festivals Specification Funky Festivals organise music festivals which take place at various venues throughout the UK. A venue needs to be booked before a Festival can t
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.
For each m:n relationship type R, we make a new table (say S) to represent R. We also contain the primary key attributes of both the participating entity types as a foreign key att
how many types of data model in DBMS? explain data abstraction with its different level
What is meant by buffer blocks and disk buffer The blocks residing temporarily in main memory are referred to as buffer blocks. The area of memory where blocks reside t
describe objectivde of file organisation
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
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
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