f a comprehensive guide for writing simple code to solve complex problems

Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 1 ppt

... systems and the data warehouse, there is a data staging area In this staging area, the operational data is cleansed and transformed into a form suitable for placement in the data warehouse for easy ... time-variant nature of the data in a data warehouse ț Allows for analysis of the past ț Relates information to the present ț Enables forecasts for the future Nonvolatile Data Data extracted from ... not as volatile as the data in an operational database is The data in a data warehouse is primarily for query and analysis Data Granularity In an operational system, data is usually kept at the...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 2 ppt

Danh mục: Cơ sở dữ liệu

... transformation for a data warehouse more involved than for an operational system? Again, as you know, data for a data warehouse comes from many disparate sources If data extraction for a data warehouse ... original source data sets Operational metadata contain all of this information about the operational data sources Extraction and Transformation Metadata Extraction and transformation metadata contain ... classifications Here are some of the classifications of the roles: ț Classifications: Staffing for initial development, Staffing for testing, Staffing for ongoing maintenance, Staffing for data...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 3 potx

Danh mục: Cơ sở dữ liệu

... ț Classes of analysis ț Front-end DSS applications Metadata ț Operational metadata ț ETL (data extraction/transformation/loading) metadata ț End-user metadata ț Metadata storage Management and ... for data acquisition Data Flow Flow In the data acquisition area, the data flow begins at the data sources and pauses at the staging area After transformation and integration, the data is ready ... flow of data In the Data Warehouse Repository The data storage architectural component includes the loading of data from the staging area and also storing the data in suitable formats for information...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 5 docx

Danh mục: Cơ sở dữ liệu

... SIGNIFICANT ROLE OF METADATA ț Data model for special databases for OLAP ț Schedules for retrieving data for OLAP Challenges for Metadata Management Although metadata is so vital in a data warehouse ... ț Specifications for mapping data staging files to load images Rules for assigning keys for each file Audit trail for the movement from data staging to load images Schedules for full refreshes ... establish a metadata management initiative for your data warehouse Sources of Metadata As tools are used for the various data warehouse processes, metadata gets recorded as a byproduct For example,...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 6 potx

Danh mục: Cơ sở dữ liệu

... to capture data from the VSAM files to get the data ready for populating the relational database Two major factors differentiate the data extraction for a new operational system from the data ... data extraction for a data warehouse First, for a data warehouse, you have to extract data from many disparate sources Next, for a data warehouse, you have to extract data on the changes for ongoing ... ETL for fact tables ETL for dimension tables Write procedures for all data loads Organize data staging area and test tools Plan for aggregate tables Determine data transformation and cleansing...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 7 ppt

Danh mục: Cơ sở dữ liệu

... of data quality Validate for allowable values The DBMS for Quality Control The database management system itself is used as a tool for data qualtiy control in many ways Relational database management ... of historical data going back many years Ability to wade through large volumes to obtain meaningful correlations Capability of extracting data from the data warehouse into formats suitable for ... sales against target quotas and for attempting to get repeat business from customers We see that the usage and value of information from the data warehouse differ from those of information from...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 8 potx

Danh mục: Cơ sở dữ liệu

... speed matrix data retrieval Summary data access from MDDB, detailed data access from warehouse Sparse matrix technology to manage data sparsity in summaries MOLAP Data stored as relational tables ... enterprise data warehouse, either as a centralized repository feeding dependent data marts or as a conglomerate of conformed data marts on a bus structure, forms a very useful source of data for data mining ... data transformation Select the data to be extracted from the data warehouse Use the busi- EVALUATION AND APPLICATION OF RESULTS APPLICATION OF APPLICATION OF SUITABLE DATA MINING SUITABLE DATA...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 9 pdf

Danh mục: Cơ sở dữ liệu

... Data Extract Flat Files Relational Database data files (transformed data) Relational Database index files Load Image Flat Files Figure 18-6 Data Warehouse Repository Relational Database data files ... look at all the data related to the data warehouse First, you have the data in the staging area Though you may look for efficiency in storage and loading, arrangement of the data in the staging area ... to train the users in the following areas: ț ț ț ț ț ț ț Basic database and data storage concepts Fundamental features of a data warehouse Contents of the data warehouse as applicable to each...

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Data Warehousing Fundamentals A Comprehensive Guide for IT Professionals phần 10 pot

Danh mục: Cơ sở dữ liệu

... represents a unified set of conformed data marts DBMS Database Management System A software system to store, access, maintain, manage, and safeguard data in databases DD Data Dictionary A catalog or ... and information sharing Data Mart A collection of related data from internal and external sources, transformed, integrated, and stored for the purpose of providing strategic information for a ... Technique for presentation and analysis of data through visual objects, such as graphs, charts, images, and specialized tabular formats Data Warehouse A collection of transformed and integrated data,...

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data warehousing fundamentals a comprehensive guide for it professionals phần 4 ppsx

Danh mục: Cơ sở dữ liệu

... advantages of a separate platform for data staging: ț You can optimize the separate platform for complex data transformations and data cleansing What we mean by this? You can gear up the neutral ... pharmacy Make a detailed list of functions and services for data extraction, data transformation, and data staging Data Warehousing Fundamentals: A Comprehensive Guide for IT Professionals Paulraj ... system platforms and databases, and available built-in extraction and duplication facilities in the source systems Data Transformation ț Transform extracted data into appropriate formats and data structures...

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data warehousing fundamentals a comprehensive guide for it professionals phần 5 pptx

Danh mục: Cơ sở dữ liệu

... SIGNIFICANT ROLE OF METADATA ț Data model for special databases for OLAP ț Schedules for retrieving data for OLAP Challenges for Metadata Management Although metadata is so vital in a data warehouse ... ț Specifications for mapping data staging files to load images Rules for assigning keys for each file Audit trail for the movement from data staging to load images Schedules for full refreshes ... establish a metadata management initiative for your data warehouse Sources of Metadata As tools are used for the various data warehouse processes, metadata gets recorded as a byproduct For example,...

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Embedded systems architecture a comprehensive guide for engineers and programmers

Danh mục: Điện - Điện tử

... threatening Standards include areas of anesthesia (i.e., Standard Specification for Minimum Performance and Safety Requirements for Resuscitators Intended for Use with Humans, Standard Specification for ... (U.S.) and VDA6.1 (German) automotive catalogs.[2-30] (See http://www.iaob.org/) SAE Aerospace Material Specifications, SAE Aerospace Standards (includes Aerospace Standards (AS), Aerospace Information ... generates Java byte code from Java source code (see Figure 2-7) .java Java Source File (s) Figure 2-7: Embedded Java compilation and linking diagram Java Compiler class Java Byte Code File (s) Java byte...

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A Complete Guide for All Ages: Easy to understand information from the nation’s leaders in women’s health doc

Danh mục: Sức khỏe phụ nữ

... legs *If you’re an African American, Hispanic, American Indian/Alaska Native, Asian American, or Pacific Islander woman, you’re more than twice as likely as a Caucasian woman to get type diabetes ... system Bladder Vagina Type diabetes can affect many parts of your body, But you can a lot to take care of yourself and prevent health problems The Healthy Woman: A Complete Guide for All Ages Fasting* ... praise for The Healthy Woman “This women’s health book is a must read! It offers information in a way that is easy to understand and easy to apply to everyday life Included are tips to stay fit...

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academic-writing-a-practical-guide-for-students

Danh mục:

... of the following: a) These apparent failures often result from inadequate planning and management, especially the lack of integration of biophysical and socio-economic information into the effort ... lack of integration of information is, in fact, a limitation that has been emphasised by many authors working with agricultural and land use planning in recent years (see, for instance, Vaughan ... chemical surface and trick its way past the body’s defences We’d need a remarkable vaccine to cope with that However, a malaria vaccine is now undergoing human trials and may be available for use...

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Accounting for payroll a comprehensive guide

Danh mục: Chuyên ngành kinh tế

... human resources staff for the payroll department to perform this function If the latter situation is the case, the payroll staff should be aware of the variety of forms that are typically included ... amount of wages that have already been earned for the year -to- date (see Chapter 8, “Payroll Taxes and Remittances”) Calculate applicable wage deductions There are both voluntary and involuntary ... Enrollment Forms Enrollment forms for a variety of insurance types can be issued to a new employee at a later date if there is a waiting period before they go into effect However, it is possible for...

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Tài liệu Academic Writing A practical guide for students ppt

Danh mục: TOEFL - IELTS - TOEIC

... of the following: a) These apparent failures often result from inadequate planning and management, especially the lack of integration of biophysical and socio-economic information into the effort ... lack of integration of information is, in fact, a limitation that has been emphasised by many authors working with agricultural and land use planning in recent years (see, for instance, Vaughan ... chemical surface and trick its way past the body’s defences We’d need a remarkable vaccine to cope with that However, a malaria vaccine is now undergoing human trials and may be available for use...

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Academic Writing A practical guide for students potx

Danh mục: Kỹ năng viết tiếng Anh

... of the following: a) These apparent failures often result from inadequate planning and management, especially the lack of integration of biophysical and socio-economic information into the effort ... lack of integration of information is, in fact, a limitation that has been emphasised by many authors working with agricultural and land use planning in recent years (see, for instance, Vaughan ... chemical surface and trick its way past the body’s defences We’d need a remarkable vaccine to cope with that However, a malaria vaccine is now undergoing human trials and may be available for use...

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The PERFORMANCE APPRAISAL QUESTION and ANSWER BOOK: A SURVIVAL GUIDE FOR MANAGERS

Danh mục: Kỹ năng quản lý

... PERFORMANCE APPRAISAL QUESTION and ANSWER BOOK Chapter The Importance of Performance Appraisal 1.1 What is ‘‘performance appraisal’’? Performance appraisal is a formal management system that provides for ... write a valid performance appraisal? 85 4.9 What about collecting data from other people to use on the performance appraisal form? Would it be a good idea to ask for information from a salesman’s ... may be many informal rewards for not delivering unpopular messages Personal Reﬂection Managers hesitate to give unfavorable appraisals for fear that the appearance of unsatisfactory work by a...

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Tài liệu ADC KRONE - Guide - FTTP - A Deployment guide for Network Manager docx

Danh mục: Kỹ thuật lập trình

... you to share this guide with your staff and use the information to build your own “Blueprint for FTTP Success.” The guide is broken into five easy -to- navigate sections While this format allows ... critical issues that are slated for approval in Q3/2004: ONT Voice Interface(s) Video Interfaces(s) Data Interfaces(s) FTTH: Single Family Living Unit Voice Interface(s) Video Interfaces(s) Data ... simpler than cutting into the cable to perform these same operations The mythical “seamless” network may have appeared as a good solution for transport and backhaul operations, but with an access...

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Tài liệu Guide for writing technical reports pdf

Danh mục: TOEFL - IELTS - TOEIC

... understandable and contain all important information Guide for writing technical reports Layout of a report 3.1 Basic layout Use A4 paper In long reports, start each chapter on a new page Use large ... (error bars are 11 Guide for writing technical reports helpful for that) With automated programs like Excel that may be a bit problematic In some cases it is not beneficial to draw a line at all ... Guide for writing technical reports 3.2.5 Appendices If you have only a few: Appendix A Tables of expansion coefficients Appendix B Specifications of current amplifier SRS 570 If you have many that...

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