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Explain controlled redundancy?
Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
multidimensional data model
Draw the database using the ER approach and then make the tables accordingly. Populate the tables so that every table have at least 10 tuples. Then using Java and SQL, execute the
Chapter 10a review questions
what is natural join?
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
Read the description below and draw an Entity-Relationship diagram for it. You must use the symbols described in the course materials. This database will help the Parents Assocc
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
From SAD to OOAD (Structured Analysis and Design (SAD) to Object Oriented Analysis and Design (OOAD). We will find here how we can map various models in SAD to different model
E-R model uses this symbol to represent weak entity set ? A Doubly outlined rectangle symbol is used to represent weak entity set.
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