will the data warehouse replace our old systems
The Data Warehouse Toolkit - The Complete Guide to Dimensional Modeling doc
Ngày tải lên :
23/03/2014, 16:21
... Extraction is the first step in the process of getting data into the data warehouse environment Extracting means reading and understanding the source data and copying the data needed for the data warehouse ... discussed the overriding goals for the data warehouse and the differences between data warehouses and operational source systems We explored the major components of the data warehouse and discussed the ... speaking, the operational systems are where the data is put in, and the data warehouse is where we get the data out The users of an operational system turn the wheels of the organization They take...
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the data warehouse toolkit, 3rd edition
Ngày tải lên :
24/04/2014, 16:10
... The Data Warehouse Toolkit The Data Warehouse Toolkit The Definitive Guide to Dimensional Modeling Third Edition Ralph Kimball Margy Ross The Data Warehouse Toolkit: The Defi nitive ... speaking, the operational systems are where you put the data in, and the DW/BI system is where you get the data out Users of an operational system turn the wheels of the organization They take ... history, but rather update data to reflect the most current state Users of a DW/BI system, on the other hand, watch the wheels of the organization turn to evaluate performance They count the new orders...
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Building the Data Warehouse Third Edition phần 1 ppt
Ngày tải lên :
08/08/2014, 21:23
... Architected Environment 87 The Data Warehouse and Data Models 89 92 94 98 The Data Warehouse Data Model The Midlevel Data Model The Physical Data Model TE viii The Data Model and Iterative Development ... External/Unstructured Data and the Data Warehouse External/Unstructured Data in the Data Warehouse Chapter 263 295 Chapter 10 The Data Warehouse and the Web 297 Supporting the Ebusiness Environment 307 Moving Data ... Outside the Data Warehouse 312 Building the Data Warehouse inside the ERP Environment 314 Feeding the Data Warehouse through ERP and Non-ERP Systems 314 The ERP-Oriented Corporate Data Warehouse...
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Building the Data Warehouse Third Edition phần 2 doc
Ngày tải lên :
08/08/2014, 22:20
... into the data warehouse The act of integrating data is always a complex and tedious task Data flows from the data warehouse into the departmental /data mart environment Data in the departmental /data ... refers to the level of detail or summarization of the units of data in the data warehouse The more detail there is, the lower the level of granularity The less detail there is, the higher the level ... types of data- lightly summarized data and “true archival” detail data The data in the data warehouse can go back 10 years The data that emanates from the data warehouse is “district” data that...
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Building the Data Warehouse Third Edition phần 3 doc
Ngày tải lên :
08/08/2014, 22:20
... - find the data - access the data - integrate the data - merge the data - build the report Figure 2.26 Where the costs and the activities are when a data warehouse is built pany B uses the one-time ... to the data warehouse First, data that is used purely in the Uttama Reddy 90 CHAPTER corporate model data model data model data warehouse data model data model operational data model data warehouse ... Then another portion of the data warehouse is built, and so forth.This feedback loop continues throughout the entire life of the data warehouse Therefore, data warehouses cannot be designed the...
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Building the Data Warehouse Third Edition phần 4 doc
Ngày tải lên :
08/08/2014, 22:20
... be moved from the data warehouse to the data mart This movement of data from the data warehouse to the data mart is analogous to the movement of data into the data warehouse from the operational ... between the data warehouse and the data mart Data warehouse data must be selected, accessed, and then reshaped to meet the needs of the data mart Often the data mart data resides in cubes The cubes ... warehouses and data marts is how data gets from the data warehouse to the data mart Data in the data warehouse is very granular Data in the data mart is very compact and summarized Periodically data must...
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Building the Data Warehouse Third Edition phần 5 pptx
Ngày tải lên :
08/08/2014, 22:20
... In the case of the data warehouse, the legacy data is passed only once to refresh the data in the data warehouse ■ ■ The complexity of moving data directly from the legacy environment to the ... the data warehouse from the operational legacy environment and the ODS Once in the data warehouse, the integrated data is accessed and analyzed there Update is not normally done in the data warehouse ... ■ ■ Data warehouse table attribution ■ ■ Data warehouse source data (the system of record) Uttama Reddy The Data Warehouse and Technology ■ ■ Mapping from the system of record to the data warehouse...
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Building the Data Warehouse Third Edition phần 6 ppt
Ngày tải lên :
08/08/2014, 22:20
... across the network and increases the traffic Uttama Reddy The Distributed Data Warehouse day 221 A single server holds all the data for the warehouse Now two servers hold the data for the warehouse ... data Figure 6.24 shows the building and population of the corporate data warehouse from the local levels The source of the data going to the corporate data warehouse can come from the local data ... coordinate or share data with the data warehouse in France, but the local data warehouse in Brazil does share data with the corporate headquarters data warehouse in Chicago Or the local data warehouse...
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Building the Data Warehouse Third Edition phần 7 docx
Ngày tải lên :
08/08/2014, 22:20
... local data warehouses The corporate data model acts as the glue that holds the different local data warehouses together, as far as their intersection at the global data warehouse is concerned There ... Unstructured Data and the Data Warehouse 267 Wall Street Journal The next day, the analyst uses the data from the Wall Street Journal as part of a report, but the original source of the data is lost ... unstructured data becomes an adjunct to the data warehouse The unstructured data is connected to the data warehouse by means of an index, and the unstructured data is brought into the data warehouse...
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Building the Data Warehouse Third Edition phần 8 ppsx
Ngày tải lên :
08/08/2014, 22:20
... millisecond response time; the data warehouse is not Uttama Reddy The Data Warehouse and the Web 309 Therefore, data passes from the data warehouse to the ODS Once in the ODS the data waits for requests ... Another is that the data warehouse database designer is free to design the data warehouse environment however he or she sees fit Building the Data Warehouse Inside the ERP Environment The data warehouse ... exemplifies the data in the data model In other cases, many sources of data in the existing systems environment contribute data to the systems of record, each under different circumstances The “best” source...
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Building the Data Warehouse Third Edition phần 9 ppsx
Ngày tải lên :
08/08/2014, 22:20
... from the data warehouse The data needed to create the profile in the class IV ODS is found in the data warehouse 57 What testing facility will there be for the data warehouse? ISSUE: Testing in the ... of the data break the data up? ISSUE: Given the volume of data that is inherent to the data warehouse environment and the unpredictable usage of the data, it is mandatory that data warehouse data ... from the data warehouse There are the issues of when the data warehouse will be examined, how often it will be examined, and what performance impact there will be because for the analysis 59 Will...
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Building the Data Warehouse Third Edition phần 10 potx
Ngày tải lên :
08/08/2014, 22:20
... “Monitoring Data Warehouse Data. ” Although activity monitoring is very important, so is the monitoring of data itself in the data warehouse The growth of the data, the quality of the data, and the actual ... “Creating the Data Warehouse Data Model from the Corporate Data Model.” This paper outlines the steps you need to take to create the data warehouse data model from the corporate data model Data Mining: ... data mart This Tech Topic addresses the relationship of OLAP and the detailed data found in the data warehouse AM FL Y The Operational Data Store.” The operational counterpoint of the data warehouse...
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Physics of the Future: How Science Will Shape Human Destiny and Our Daily Lives by the Year 2100
Ngày tải lên :
14/03/2014, 08:49
... it was the scientist Dr Zarkov who actually made the series work He invented the rocket ship, the invisibility shield, the power source for the city in the sky, etc Without the scientist, there ... through the quantum theory, which allows us to decode the secrets of the subatomic world The quantum theory, in turn, has given us the transistor, the laser, and the digital revolution that is the ... nature and then apply them to the inventions, machines, and therapies that will redefine our civilization far into the future There have been, I found out, numerous attempts to predict the future,...
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Báo cáo hóa học: "Research Article The Effect of Cooperation on Localization Systems Using UWB Experimental Data" doc
Ngày tải lên :
21/06/2014, 22:20
... of the number of walls between the ranging devices The ranging data was then analyzed as a function of the number of walls between the ranging devices Hence, the data for each condition (LoS, ... between the measured data and the Gaussian model 3.3 Statistical model for ranging error Let p = (x, y)T be the vector of the target’s coordinates, where the subscript T denotes the transpose The ... error Section 3.1 shows that the excess delay is caused primarily by the number and characteristics of the walls obstructing the DP We now use the data collected during the main measurement campaign...
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Áp dụng Data Warehouse trong phân tích thông tin về các dịch vụ giá trị gia tăng trên điện thoại
Ngày tải lên :
23/11/2012, 15:03
... kho liệu Chương 2: Tổng quan Data WareHouse Nội dung chương trình bày tổng quan data warehouse gồm: định nghĩa, đặc tính,mô hình, kiến trúc xu hướng tương lai data warehouse Chương Tổng quan Microsoft ... CHƯƠNG TỔNG QUAN VỀ DATA WAREHOUSE Tóm lược nội dung: Nội dung chương trình bày tổng quan data warehouse gồm: định nghĩa, đặc tính,mô hình, kiến trúc xu hướng tương lai data warehouse 2.1 Định ... vào cuối tháng - Thống kê theo dõi: Hệ thống cung cấp cho người quản lý báo cáo để theo dõi sản lượng dịch vụ theo đầu số, mạng viễn thông, nhóm dịch vụ thời gian - Theo dõi lịch sử hoạt động...
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Data Warehouse
Ngày tải lên :
25/04/2013, 20:33
... hàng Data Warehouse Tiền vay Phát hành séc Trái phiếu Hoạt động Thị trường Tiết kiệm Thẻ tín dụng Tích hợp Dữ liệu đưa vào theo cách thống Các HT điều hành Database A Mr J Smith Data Warehouse Database ... Smith Data Warehouse Database B Joe Smith Database C Smith, Joseph Mr J Smith Database D J Smith Database A bal-on-hand Database B balance Database C curr_bal Database D cash_avail balance Bt bin ... khai thác Data Warehouse 00:00 06:00 12:00 18:00 Các kiểu Nhà kho liệu Xí nghiệp (Data Warehouse) Phòng ban (Data Mart) Phân tích (OLAP) Kết xuất thông tin Kho liệu điều hành (ODS) Warehouse...
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ORACLE DATA WAREHOUSE
Ngày tải lên :
25/04/2013, 20:33
... liệu Dữ liệu Chính xác Chính xác thực tế thực tế Chất lượng Chất lượng Lịch sử Lịch sử Data Warehouse Data Warehouse Các thành phần công nghệ giải pháp Phần cứng phần mềm hệ thống Công nghệ ... Mở đầu Các khái niệm Các khía cạnh thiết kế triển khai Giải pháp Nhà kho liệu Oracle (Oracle Warehouse) Mức khái niệm logic Thông tin nhắc lại Nôi dung Các đòi hỏi thực tế liệu cho giải ... chứng minh lợi ích thực sự: chi phí, doanh thu lợi nhuận lợi ích khác Cần nhiều thời gian thay đổi theo yêu cầu Trên sở giải việc thu thập liệu Các thành phần chi phí Thiết kế, Xây dựng Khai...
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Data Warehouse Architecture and Models
Ngày tải lên :
25/04/2013, 20:33
... Warehouse Data Fact data - Measures Dimension data - Query drivers Summary data - Pre-calculated data Fact Data and Tables Many fact tables in the warehouse The bulk of the warehouse data ... enterprise-wide data warehouse and localized data marts Recognize the difference between independent and dependent data marts Identify the data that is stored in a data warehouse Explain the features ... of data by examining where and why it is used List the data models that may already exist in a company and describe where they may be useful to the warehouse model Explain the two common data warehouse...
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NHÀ KHO DỮ LIỆU (Data Warehouse)
Ngày tải lên :
25/04/2013, 20:34
... administration Target data Target metadata data Apply Transformation Capture data Target data definitions Source/target mappings Source data definitions Source data Source metadata Hình 3.2.1:Tổng ... Hình 3.2.2: Cấu trúc thành phần quản trị ánh xạ Source metadata Target metadata External metadata manager Internal metadata copy store Replication source definitions Replication target definitions ... phần Nhà kho liệu Oracle Nền tảng công nghệ Oracle Warehouse Builder Oracle8 database Common Warehouse Meta Data Business Intelligence tools Oracle Data Mart Suite Các ứng dụng phân tích đầu vào...
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Tìm hiểu về Data Warehouse
Ngày tải lên :
26/04/2013, 15:19
... liệu (Metadata in the Data warehouse) 44 3.5 Danh mục kho liệu (The data warehouse catalog -DWC): 44 3.6 Các hệ thống vận hành (Operational systems) 46 3.7 Chức kho liệu (Data warehouse ... tử có tương tác với kho liệu Hình 13: The data warehouse and external data Trang -43- Tìm hiểu Data Warehouse 3.4.Siêu liệu kho liệu (Metadata in the Data warehouse) Siêu liệu yêu cầu có kiến ... 1.3 Đặc điểm Trước tiên Data Warehouse sở liệu lớn (very large database-VLDB) Data Warehouse thường đọc, phục vụ cho nhu cầu báo cáo, Data Warehouse hướng tính ổn định Data Warehouse lấy thông tin...
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