1. With necessary diagram explain about data warehouse development life cycle . Ans : Introduction to data warehouses. Data warehouse development lifecycle (Kimball’s approach) Q. 2. What is Metadata ? What is it’s uses in Data warehousing Archietechture ? Ans : In simple terms‚ meta data is information about data and is critical for not only the business user but also data warehouse administrators and developers. Without meta data‚ business users will be like tourists left
Premium Data warehouse Data management Software testing
Database Design Scenario Currently a school uses a non-computerised database system to store the following information about its students: roll class‚ surname‚ first name‚ guardian ’s name‚ address‚ student ’s date of birth‚ gender‚ sport house‚ emergency-contact telephone number‚ mailing name‚ list of subjects offered‚ and subjects in which the student is enrolled. The system takes up a large amount of space‚ has many duplicated entries some of these with mistakes and it is time consuming
Premium Database SQL Data modeling
Database Design Process Database Life Cycle Key points Database design must reflect the information system of which the database is a part Information systems undergo evaluation and revision within a framework known as the Systems Development Life Cycle (SDLC) Databases also undergo evaluation and revision within a framework known as the Database Life Cycle (DBLC) There are two general design strategies exist: top-down vs. bottom-up design centralized vs. decentralized design 2
Premium Database Database model Database management system
What is a data warehouse and why is REI building one? A data warehouse can be described as a “database that stores current and historical data of potential interest to decision makers throughout a company. The data originate in many core operational transaction systems‚ such as systems for sales‚ customer accounts‚ and manufacturing‚ and may include data from Web site transactions.1” REI is building a data warehouse to improve the company and to meet the needs of the customers. REI’s data warehouse
Premium Cooperative Data warehouse Marketing
Database Design Ryan K. Stephens Ronald R. Plew 800 East 96th St.‚ Indianapolis‚ Indiana‚ 46240 USA Database Design ASSOCIATE PUBLISHER Copyright 2001 by Sams Publishing EXECUTIVE EDITOR Bradley L. Jones All rights reserved. No part of this book shall be reproduced‚ stored in a retrieval system‚ or transmitted by any means‚ electronic‚ mechanical‚ photocopying‚ recording‚ or otherwise‚ without written permission from the publisher. No patent liability is assumed with respect
Premium Database Relational model SQL
tables‚ forms‚ and other objects that will make up your database‚ it is important to take time to design your database. A good database design is the keystone to creating a database that foes what you want it to do effectively‚ accurately‚ and efficiently. The first step in designing a Microsoft Access database is to determine the purpose of the database and how it’s to be used. You need to know what information you want from the database. Form that‚ you can determine what subjects you need
Premium Microsoft Access
In this essay I’m going to be discussing what database systems are and how they are used. I will de speaking on and defining database architecture. I also will be discussing how database systems are used in my everyday life and at my workstation. We will start this off with the answer to “What is a database?”. A database is a compilation of related or like pieces of data. This information or data is gathered and maintained to serve the specific data management needs of the organization. The organizations
Premium Database SQL Database management system
How Data Mining‚ Data Warehousing and On-line Transactional Databases are helping solve the Data Management predicament. Robert Bialczak Walden University How Data Mining‚ Data Warehousing and On-line Transactional Databases are helping solve the Information Management predicament. Data in itself can be powerful‚ but also has many pitfalls if left to disparate databases and data collection routines. A collection of spreadsheets with account numbers entered into them can be view as a business
Premium Data management Data mining Business intelligence
Database Environment Brandon Smith DBM/380 10-8-2012 Kenneth Hoskins Database Environment “A database is a structured collection of records or data that is stored in a computer system. In order for a database to be truly functional‚ it must not only store large amounts of record‚ but also be able to access those records fast and efficiently. In addition‚ new information and changes should also be easy to input.” (tech-faq.com) To be useful over a long term the database should be able
Premium Client-server Application server Software architecture
Data warehousing and current trends Submitted to: Mr. S. Ramanathan TABLE OF CONTENTS 1. Executive Summary 2. Data warehousing basics‚ difference from database and its business implication 3. Data mining‚ businesses using it and how 4. ETL technology‚ businesses using it and how 5. Tools used 6. Data mart and difference in business implication 7. References EXECUTIVE SUMMARY This study takes an insight into the usage of data warehousing and data mining
Premium Data warehouse Data management