Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 3 ppsx

... Table (Data to be loaded into the DW) Data Warehouse SOURCE SYSTEM ENVIRONMENT Cleansing, Selection, Change Data Capture Archive Data Load data into data warehouse Archived (Complete) Source Data Extraction (Extract ... added to the data warehouse) and usage (to reduce the need to join data to satisfy queries. These steps help organize the data to meet performance o...

Ngày tải lên: 08/08/2014, 22:20

... Areas 33 6 Summary 33 7 Chapter 11 Maintaining the Models 33 9 Governing Models and Their Evolution 33 9 Subject Area Model 34 0 Business Data Model 34 1 System Data Model 34 2 Technology Data Model 34 4 Synchronization ... in-Architecture 36 6 Migrating from Data Mart Chaos 36 7 Conform the Dimensions 36 8 Create the Data Warehouse Data Model 37 1 Create the Data...

Ngày tải lên: 08/08/2014, 22:20

... apply the business data model include operational systems, data warehouse, and data mart databases, and the model provides the meta data (or information about the data) for these databases to help ... case of a data warehouse, these inter- faces include the data acquisition and the data delivery programs, where and when to perform data cleansing, audits, data main...

Ngày tải lên: 08/08/2014, 22:20

... 2002 S MTWT F S 1 234 567 29 30 31 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 JANUARY 20 03 S MTWT F S 1 234 567 29 30 31 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Chapter ... Model 1 23 Since one of the roles of the data warehouse is to store historical data from dis- parate systems, the data warehouse data model needs to consider...

Ngày tải lên: 08/08/2014, 22:20

... be handled in the data marts rather than the data warehouse. The first two approaches, database and query tool localization, rely on functionality of those software components to handle data presentation. ... (Wing) 7WRV 1 Tip Light (R) 7RTL 1 Tip Light (L) 7LTL 1 Rivet – 938 -2 93 RV05 86 Description Item Qty Rivet – 38 302 -3 RV06 254 Rivet – 839 2 -34 8 RV08 73 Alignment tool...

Ngày tải lên: 08/08/2014, 22:20

... Loaf Dumplings 01 035 ENTR0 231 9 01 035 ENTR0 232 3 01 035 SIDE 034 01 Potatoes 01 035 SIDE0 439 2 Fried Chicken Meat Loaf Potatoes 01160ENTR0 231 9 01160ENTR0 232 3 01160ENTR0 439 2 SKU 009208198 009202028 0092 032 93 01 031 7298 … … … … 01 031 8418 … 01 031 0598 … 110 117 01 100 100 117 Parent Child Convert ... Loaf Dumplings 01 035 ENTR0 231 9 01 035 ENTR0 232 3 01 035 SIDE 034 01 Potato...

Ngày tải lên: 08/08/2014, 22:20

... 1 1002 930 2 1002 930 3 10 030 38 1 10 030 38 2 10 030 38 3 10 030 38 4 10 030 38 5 Invoice Header Rows 1002 930 data 2 ID Line 1002 930 10 030 38 Invoice Header Rows Disk Block ID data Data Warehouse Optimization 289 Method ... order data 100 23 ABCDE 03/ 02/20 03 100 23 FGHUJ 03/ 05/20 03 Order Header Order Line Order ID 100 23 100 23 100 23 100 23 Line 004 0 03 0...

Ngày tải lên: 08/08/2014, 22:20

... (Unique) ID Parent 1DGS902 1HUE 039 2UUE384 2ZUD9 23 3ABD 038 3KES 734 3IEK299 3JSU8 23 3LOP929 3LMN347 3SDF2 93 Row 2 1 3 2 7 3 5 4 3 5 10 6 root 7 6 8 11 9 7 10 10 11 < 1 2 4 8 3 6 9 > 5 10 11 = Data ... structure. Cars ID Type Color other 1DGS902 Sedan White … 1HUE 039 Sedan Silver 2UUE384 Coupe Red 2ZUD9 23 Coupe White 3ABD 038 3KES 734 3...

Ngày tải lên: 08/08/2014, 22:20

... Line Staging Data Store Data Warehouse Data Mart Data Mart Data Mart • Users Access Transactions Data Warehouse Bus Aggregated Data Mart Personal Data Mart Aggregated Data Mart Atomic Data Mart Atomic Data ... the data in the chosen mart for what data belongs in the data warehouse data versus the data used in the data mart. Your job is to separate the...

Ngày tải lên: 08/08/2014, 22:20

... model, 37 surrogate keys, 33 0 33 2 system model, 43 technology model, 43 45 tools, 35 training needs, 30 types, 35 –45 data stewards, 82, 32 5, 34 8 34 9 data stewardship, 32 3 32 4, 34 6, 37 4 data subject, ... 255 controlling, 32 3 32 4 CRC code, 268–269 data warehouses, 32 1 32 6 detecting, 268–269 extracompany changes, 32 2 implementing, 32 5 32 6, 33 2 33 7 in...

Ngày tải lên: 08/08/2014, 22:20