data modeling for a data warehouse

A Developer''''s Guide to Data Modeling for SQL Server doc

Ngày tải lên : 31/03/2014, 21:22

... we want to make sure that we are all on the same page Databases What is a database? The simple answer is that a database is anything that contains information A database can be either logical ... databases, we are referring to relational databases that contain collections of tables that can relate to one another Relational Database Management Systems A relational database management system ... numbers are all string, or alphanumeric, types of data The actual data types used for alphanumeric information are char, nchar, varchar, and nvarchar As you can probably tell from the names, all...

299
613
0

Tài liệu Oracle - Building A Banking Customer Relationship Data Warehouse - A Case Study - White Paper (pdf) pptx

Ngày tải lên : 24/01/2014, 06:20

... Enterprise Data Warehouse Logical Data Model Finalize MIS data mart logical data model Define data Implementation Road schedules warehouse map and Paper #132 / Page Data Warehouse and Business ... presentation layer accessed the Data Warehouse, as well as, Data Marts • The Hub component (Extraction Layer) fed data to the ODS, as well as, the Data Warehouse Extraction and Transformation ... consistent across data marts • The Data Warehouse served as a repository of detail and historical information that can be used to augment subset and aggregate information in the Data Marts The stated...

10
491
2

.Exam 70-463: Implementing a Data Warehouse with Microsoft SQL Server 2012 pot

Ngày tải lên : 06/03/2014, 23:20

... each of which might store data in its own database You might also have part of the sales data in one database and part in another And you could have customer data in both databases, without a ... Solutions Chapter 14 Installing and Maintaining Data Quality Services 529 Chapter 15 Implementing Master Data Services 565 Chapter 16 Managing Master Data 605 Chapter 17 Creating a Data Quality Project ... www.it-ebooks.info Par t I Designing and Implementing a Data Warehouse CHAPTER Data Warehouse Logical Design Chapter Implementing a Data Warehouse 41 www.it-ebooks.info www.it-ebooks.info Chapter Data Warehouse...

848
8.6K
4

The Data Warehouse Toolkit - The Complete Guide to Dimensional Modeling doc

Ngày tải lên : 23/03/2014, 16:21

... discussion Metadata Metadata is all the information in the data warehouse environment that is not the actual data itself Metadata is akin to an encyclopedia for the data warehouse Data warehouse teams ... designed) Basic elements of the data warehouse Modeling: Forecasting Scoring Data mining Access CHAPTER Data Staging Area The data staging area of the data warehouse is both a storage area and a set ... Business-driven goals of a data warehouse Data warehouse publishing Major components of the overall data warehouse Importance of dimensional modeling for the data warehouse presentation area Fact and dimension...

449
487
3

Exam 70-463: Implementing a Data Warehouse with Microsoft SQL Server 2012 pot

Ngày tải lên : 29/03/2014, 02:20

... Master Data Services 565 Chapter 16 Managing Master Data 605 Chapter 17 Creating a Data Quality Project to Clean Data 637 87 421 Part VI Advanced SSIS and Data Quality Topics Chapter 18 SSIS and ... perform the following tasks: ■■ Design an appropriate data model for a data warehouse ■■ Optimize the physical design of a data warehouse ■■ Extract data from different data sources, transform and ... Cycles), and the AdventureWorks data warehouse (DW) database, which demonstrates how to build a data warehouse You need to download both databases for SQL Server 2012 You can download both databases...

848
4.8K
2

mastering data warehouse aggregates solutions for star schema performance

Ngày tải lên : 03/06/2014, 02:05

... Mastering Data Warehouse Aggregates Solutions for Star Schema Performance Christopher Adamson Mastering Data Warehouse Aggregates Mastering Data Warehouse Aggregates Solutions for Star Schema ... values, maximum values, averages, and running totals Multiple Stars and Conformance An enterprise data warehouse contains numerous star schemas The data warehouse for a manufacturing business may include ... Principles for the Aggregate Schema A Separate Star for Each Aggregation Single Schema and the Level Field Drawbacks to the Single Schema Approach Advantages of Separate Tables Pre-Joined Aggregates Naming...

377
285
0

báo cáo hóa học: " Data processing techniques for a wireless data transmission application via mud" ppt

Ngày tải lên : 21/06/2014, 00:20

... be capable to preserve all of the data so that technicians can access and refer to the old data when needed Apparently a database technique can provide the function of data accessing and storage, ... voltage These parameters together with resistivity and Gamma ray data are encoded and transformed, according to a predetermined form, into a data string Encoding method Data encoding A datum is encoded ... old data are saved perfectly and can be selectively played back at any time Signal decoding In this stage the software separates value sequences of down-hole parameters and converts the data back...

8
529
0

Báo cáo hóa học: " Research Article On the Sets of Regularity of Solutions for a Class of Degenerate Nonlinear Elliptic Fourth-Order Equations with L1 Data" doc

Ngày tải lên : 22/06/2014, 19:20

... Viale delle Scienze, 90128 Palermo, Italy Email address: bonafedes@unipa.it F Nicolosi: Dipartimento di Matematica e Informatica, Universit` delgi Studi di Catania, a Viale A Doria 6, 95125 Catania, ... Kovalevsky and F Nicolosi, “On the sets of boundedness of solutions for a class of degenerate nonlinear elliptic fourth-order equations with L1 -data, ” Fundamentalnaya I Prikladnaya Matematika, ... solutions of equations and variao tional inequalities with degenerate nonlinear elliptic high order operators,” in Problemi Attuali dell’Analisi e della Fisica Matematica, pp 205–220, Aracne Editrice,...

15
291
0

Data analysis and modeling for engineering and medical applications

Ngày tải lên : 04/10/2015, 10:24

... structure to select a set of important features for classification (Raghuraj Rao and Lakshminarayanan, 200 7a) and multivariate calibration (Raghuraj Rao and Lakshminarayanan, 2007c) applications The focus ... ranking (Raghuraj Rao and Lakshminarayanan, 200 7a) PCCM as data pretreatment can potentially influence variable interaction based approaches such as VPMCD and Artificial Neural Network (ANN) After ... Poor quality and/or quantity of data as well as missing data can make data analysis even harder Some biological and medical datasets are too huge in size Therefore, it is a bit too hard for some...

131
719
0

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

... TenKhachHang Nvarchar(100) Tên khách hàng Nguyễn Văn An DiaChi_KH Nvarchar(100) Đ a Hà Nội GioiTinh Bit Giới tính Email Varchar(100) Email annv@gg.com TrangThaiKhoa Bit Bị kh a không Trong bảng Fact ... Telco_Key Int Kh a chính, tự tăng mamangvienthong Varchar(10) Mã mạng viễn thông VINA Tenmang Nvarchar(50) Tên chi tiết Vinaphone Diachi Nvarchar(50) Đ a liên hệ Hà Nội TrangThai Bit Trạng thái ... KieuQuangCao Varchar(50) Tên kiểu quảng cáo Bao KieuQuangCao_Chi Nvarchar(100) Tên chi tiết Báo – tạp chí 42 tiet TenCongTy Nvarchar(100) Đơn vị thuê đăng Báo Việt nam net diachiconty Nvarchar(100)...

73
1.1K
9

Data Warehouse

Ngày tải lên : 25/04/2013, 20:33

... 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 Dữ liệu ... hàng Data Warehouse Tiền vay Phát hành séc Trái phiếu Hoạt động Thị trường Tiết kiệm Thẻ tín dụng Tích hợp Dữ liệu đ a vào theo cách thống Các HT điều hành Database A Mr J Smith Data Warehouse Database ... suất 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...

23
508
0

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 ... nay? Bạn biết Nhà kho liệu? Oracle Express có phải phần mềm Nhà kho liệu? Nội dung giới thiệu Mở đầu Các khái niệm Các kh a cạnh thiết kế triển khai Giải pháp Nhà kho liệu Oracle (Oracle Warehouse) ... dụng hỗ trợ định : báo cáo, OLAP, EIS Khai phá liệu Các đòi hỏi thực tế nghiệp vụ Thích nghi nhanh chóng với thay đổi Nhận thức tình hình thị trường Đáp ứng nhanh chóng yêu cầu thị trường...

12
780
1

Data Warehouse Architecture and Models

Ngày tải lên : 25/04/2013, 20:33

... 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  Measures (units sold, sales ... Differentiate between an 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 ... Analyze business users’ needs Interview users  Examine data needed  Ascertain data availability  Determine data frequency  Decide the refresh cycle Types of Warehouse Data    Fact data...

26
419
0

NHÀ KHO DỮ LIỆU (Data Warehouse)

Ngày tải lên : 25/04/2013, 20:34

... chúng administration Target data Target metadata data Apply Transformation Capture data Target data definitions Source/target mappings Source data definitions Source data Source metadata Hình ... Implementation, AddisonWesley, 1997 [2] Gabrielle Gagnon Data Warehouse, An Overview, PC Magazine, February 22, 1999 [3] Deepak Gupta - Designing a Data Warehouse Application: Tips and Techniques, ... dùng cuối quan tâm, có giá trị DWC Cấu trúc thành phần quản trị Hình 3.2.2: Cấu trúc thành phần quản trị ánh xạ Source metadata Target metadata External metadata manager Internal metadata copy store...

48
814
7

Tìm hiểu về Data Warehouse

Ngày tải lên : 26/04/2013, 15:19

... sale data Client/server, relational database, lange UNIX system Call record Telecommu Billing `Very hier – archical n- ications Legacy application, lange database, mainframe Production Manufac- ... Large account hier – archical activities, e database, g., file Technology Legacy application, mainframe details Account Finance balance witharawals Point – of – Retail Generate bills Very manage ... (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 functionality):...

58
1.2K
7

Xây dựng phần mềm quản lý hệ thống Data Warehouse tại Ngân hàng Công thương Việt Nam

Ngày tải lên : 06/08/2013, 10:11

... Việt Nam sáng lập viên đối tác liên doanh Ngân hàng INDOVINA (ngân hàng liên doanh Việt Nam); đồng thời thành viên thức Hiệp hội Ngân hàng Việt Nam (VNBA), Hiệp hội ngân hàng Châu Á (AABA), Hiệp ... Thanh Lớp: Tin học kinh tế 47B Báo cáo thực tập tổng hợp Tên đề tài: Khoa: Tin học kinh tế “ Xây dựng phần mềm quản lý hệ thống Data Warehouse Ngân hàng Công thương Việt Nam “ Đây đề tài hay, ... lý hệ thống Data Warehouse Ngân hàng Công thương Việt Nam “ làm đề tài nghiên cứu cho chuyên đề thực tập tốt nghiệp Như biết, kho liêu có vai trò quan trọng hoạt động hàng ngày doanh nghiệp mà...

21
1.9K
13

Tài liệu Oracle Data Warehouse Developer pdf

Ngày tải lên : 10/12/2013, 05:15

... Testing and QA activities for daily OWB ETLs and jobs, resolving data load issues on an on‐going basis as well as carrying out pro‐active testing and quality control activities to ensure data warehouse data integrity and quality is maintained. ... Bachelors Degree required, preferably in Computer Science, or an equivalent combination of education and experience. At least 5 years of previous/proven experience in Database and Data Warehouse design and development including Data Mart structures and Oracle PL/SQL ... Experience with UNIX‐based operating systems, to develop shell scripts to carry out and schedule system ETL‐ related activities including file transfers and synchronization between multiple hosts, data import/export from flat files and data comparison and archiving. ...

3
836
3

Tài liệu LUẬN VĂN: Tìm hiểu về Data Warehouse doc

Ngày tải lên : 21/02/2014, 23:20

... sale data Client/server, relational database, lange UNIX system Call record Telecommu Billing `Very hier – archical n- ications Legacy application, lange database, mainframe Production Manufac- ... Large account hier – archical activities, e database, g., file Technology Legacy application, mainframe details Account Finance balance witharawals Point – of – Retail Generate bills Very manage ... (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 functionality):...

59
1.1K
3

Báo cáo Y học: Modeling the three-dimensional structure of H+-ATPase of Neurospora crassa Proposal for a proton pathway from the analysis of internal cavities pptx

Ngày tải lên : 23/03/2014, 21:20

... aspartate (Asp378 in PMA1_NEUCR), several cavities are also seen at the same position in ATC1_RABIT (data not shown) Aside from mutations directed against a small stretch of amino acids adjacent to ... (1994) Computer analysis of bacterial haloacid dehalogenases deﬁnes a large superfamily of hydrolases with diverse speciﬁcity Application of an iterative approach to database search J Mol Biol ... Val334, and Val336 on M4 and Ala726 and Asp730 on M6 Alanine-scanning mutagenesis along segment M4 of yeast H+-ATPase showed that replacement of Ile331 and Val334 had little or no effect on ATP-dependent...

13
514
0

oracle data warehouse management 2003

Ngày tải lên : 07/04/2014, 15:51

... across parallel sessions (except for MAX_SESSIONS) DM A DM or data mart is usually equivalent to a OLAP database DM databases are specific use databases A DM is usually created from a data warehouse ... processing A data warehouse contains detailed, nonvolatile, time-based information Usually data marts are derived from data warehouses A data warehouse design should be straight forward since many users ... Description and Use An OLAP database, which is an On-line Analytical Processing database, is used to perform data analysis An OLAP database is based on dimensions a dimension is a single detail record about...

129
373
0