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What is E-R model?
This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a database by a set of attributes.
QUESTION (a)(i) Define the term database. (ii) How is it different from a database management system? (b) What is the difference between an entity and an attribute? (c
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
Discuss the types of integrity constraints in which must be checked for the update operations - Insert and Delete. Give examples. Insert operation can violet any of the subse
how many types of data model in DBMS? explain data abstraction with its different level
The Form input elements are: Reporter name text type input Password
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
need to get answer for questions 3&4 on this page in part 1
note on hashing technique
Using a labelled diagram explain the operation of the Data Warehouse, define the basic architectural components and outline the main functionalities. Briefly explain the role an op
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
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