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DBMS, Database Management System
WHAT IS DBMS
Posted Date: 1/9/2013 4:17:16 PM | Location : Ethiopia
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Relation instance or relation state, A relation instance indicates as r is ...
A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time. A relation state r of the relation schema R (A 1 ,A 2 ,.....
Vertical fragmentation, Vertical Fragmentation- Vertical fragmentation grou...
Vertical Fragmentation- Vertical fragmentation groups together only those attributes in a relation that are used jointly by various important transactions. A vertical fragment is d
Need website hacking security test, We want have a website; we need to test...
We want have a website; we need to test the security of our website. You need to: -Try to bypass our security by simulate a website hacking -Try some hack Techniques like
Define functional and multivalued dependencies, Define functional and multi...
Define functional and multivalued dependencies. Ans: A functional dependency is a assets of the semantics of the attributes in a relation. The semantics point out how at
What is hash file organization, What is hash file organization? What are t...
What is hash file organization? What are the causes of bucket overflow within a hash file organization? What can be completed to decrease the occurrence of bucket overflow?
C PROBLEMS, how to solve the C type problems?
how to solve the C type problems?
Normalization database, I need some help with my normalization database hom...
I need some help with my normalization database homework.
How relational calculus is different from relational algebra, How Relationa...
How Relational Calculus is different from Relational Algebra? What do understand by TRC queries and DRC queries? Ans: Relational calculus contain two calculi, the tuple relati
Write short notes on schema diagram, Write short notes on Schema diagram. ...
Write short notes on Schema diagram. A database schema along with primary key and foreign key dependencies can be depicted pictorially by schema diagram. Every relation appears
Draw an er diagram for organization of a student database, Draw an ER diagr...
Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled
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