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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 operational data store (ODS) can play in this structure.
Q. State the Technique for converting a state diagram to code. i) Identify the major control path. Starting with first state, find the path from diagram that corresponds
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
Describe Specialsation and generalization? Specialisation /generalization: This is a top down and bottom up approach to the design of database. It displays the IS_A relation
Distributed Database Management System
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
What is meant by data-transfer rate? The data-transfer rate is the rate at which data can be retrieved from or kept to the disk.
why are older data models are being replaced by new data models
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
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