This document discusses key concepts related to data warehouses. It defines a data warehouse as a repository of current and historical data used to support decision making. It notes that data warehouses are subject-oriented, integrated, time-variant, and nonvolatile. The document also discusses data marts, operational data stores, enterprise data warehouses, and the importance of metadata in data warehouses.
Data Warehouse – Introduction, characteristics, architecture, scheme and modelling, Differences between operational database systems and data warehouse.
Top 60+ Data Warehouse Interview Questions and Answers.pdfDatacademy.ai
This is a comprehensive guide to the most frequently asked data warehouse interview questions and answers. It covers a wide range of topics including data warehousing concepts, ETL processes, dimensional modeling, data storage, and more. The guide aims to assist job seekers, students, and professionals in preparing for data warehouse job interviews and exams.
Data Warehouse – Introduction, characteristics, architecture, scheme and modelling, Differences between operational database systems and data warehouse.
Top 60+ Data Warehouse Interview Questions and Answers.pdfDatacademy.ai
This is a comprehensive guide to the most frequently asked data warehouse interview questions and answers. It covers a wide range of topics including data warehousing concepts, ETL processes, dimensional modeling, data storage, and more. The guide aims to assist job seekers, students, and professionals in preparing for data warehouse job interviews and exams.
this is the ppt this contains definition of data ware house , data , ware house, data modeling , data warehouse architecture and its type , data warehouse types, single tire, two tire, three tire .
this is the ppt this contains definition of data ware house , data , ware house, data modeling , data warehouse architecture and its type , data warehouse types, single tire, two tire, three tire .
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Cosmetic shop management system project report.pdf
Unit III Introduction to DWH.pdf
1. Sanjivani Rural Education Society’s
Sanjivani College of Engineering, Kopargaon-423 603
(An Autonomous Institute, Affiliated to Savitribai Phule Pune University, Pune)
NACC ‘A’ Grade Accredited, ISO 9001:2015 Certified
Department of Computer Engineering
(NBA Accredited)
Prof. S.A.Shivarkar
Assistant Professor
E-mail :
shivarkarsandipcomp@sanjivani.org.in
Contact No: 8275032712
Subject- Business Intelligence
Unit-II: Data Warehouse
2. Course Contents
DEPARTMENT OF COMPUTER ENGINEERING, Sanjivani COE, Kopargaon 2
Unit-III :Data Warehouse
Introduction: Data warehouse Modelling, data warehouse
design, data-ware-house technology, Distributed data
warehouse, and materialized view
3. Data Warehouse
A data warehouse (DW) is a pool of data produced
to support decision making; it is also a repository
of current and historical data of potential interest
to managers throughout the organization.
Data are usually structured to be available in a
form ready for analytical processing activities (i.e.,
online analytical processing [OLAP], data mining,
querying, reporting, and other decision support
applications). A data warehouse is a subject-
oriented, integrated, time-variant, nonvolatile
collection of data in support of management's
decision-making process.
4. Data Warehouse Characteristics
Subject oriented
Integrated
Time variant (time series)
Nonvolatile
Web based
Relational/multidimensional
Client server
Real time
Include metadata
5. Data Marts
A data mart is a subset of a data warehouse, typically
consisting of a single subject area (e.g., marketing,
operations).
A dependent data mart is a subset that is created
directly from the data warehouse. It has the
advantages of using a consistent data model and
providing quality data.
Dependent data marts support the concept of a
single enterprise-wide data model, but the data
warehouse must be constructed first.
A dependent data mart ensures that the end user is
viewing the same version of the data that is accessed
6. Data Marts
A dependent data mart ensures that the end user is
viewing the same version of the data that is accessed
by all other data warehouse users.
The high cost of data warehouses limits their use to
large companies.
As an alternative, many firms use a lower-cost,
scaled-down version of a data warehouse referred to
as an independent data mart. An independent data
mart is a small warehouse designed for a strategic
business unit (SBU) or a department, but its source
is not an EDW.
7. Operational Data Stores
An operational data store (ODS) provides a fairly
recent form of customer information file (CIF).
This type of database is often used as an interim
staging area for a data warehouse.
Unlike the static contents of a data warehouse, the
contents of an ODS are updated throughout the
course of business operations.
An ODS is used for short-term decisions involving
mission-critical applications rather than for the
medium- and long-term decisions associated with an
EDW. An ODS is similar to short-term memory in that
it stores only very recent information
8. Enterprise Data Warehouses (EDW)
An enterprise data warehouse (EDW) is a large-scale
data warehouse that is used across the enterprise for
decision support.
It is the type of data warehouse that Isle of Capri
developed, as described in the opening vignette.
The large-scale nature provides integration of data
from many sources into a standard format for
effective BI and decision support applications.
EDW are used to provide data for many types of DSS,
including CRM, supply chain management (SCM) etc.
9. Meta Data
Metadata are data about data.
Metadata describe the structure of and some meaning
about data, thereby contributing to their effective or
ineffective use.
10. Importance of Meta Data
A documentation of the data warehouse structure:
layout, logical views, dimensions, hierarchies,
derived data, localization of any data mart;
A documentation of the data genealogy, obtained by
tagging the data sources from which data were
extracted and by describing any transformation
performed on the data themselves;
11. Importance of Meta Data
A list keeping the usage statistics of the data
warehouse, by indicating how many accesses to a
field or to a logical view have been performed;
A documentation of the general meaning of the
data warehouse with respect to the application
domain, by providing the definition of the terms
utilized, and fully describing data properties, data
ownership and loading policies.