Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 10 docx
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 10 docx
... data marts in a single database instance.
Data Warehouse Data Model The data warehouse data model is the “sys-
tem” model for the data warehouse that is created by transforming the
business data ... 30
types, 35–45
data stewards, 82, 325, 348–349
data stewardship, 323–324, 346, 374
data subject, 31
data summaries and misleading
results, 128
data warehouse app...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 1 pptx
... segregating data into five major databases (oper-
ational systems, data warehouse, operational data store, data marts, and oper
marts) and incorporating processes to effectively and efficiently move data
from ... information needs. This means that the data delivery layer must be
flexible enough to keep pace with these demands.
Data Marts
Data marts are a subset of data...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 2 pdf
... 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...
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...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 4 pot
... the data warehouse is to store historical data from dis-
parate systems, the data warehouse data model needs to consider the defini-
tions in the source systems, and we will address the data warehouse ... data provided with the data marts needs to explicitly
explain the data that is included or excluded. This is another advantage of
segregating the functionality of the...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 5 potx
... 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. ... patterns and rates,
and a common standard time to analyze network traffic.
If there is a requirement for a common standard time, you must store the local
time and date as...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 6 pps
... MarketsHQ
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4...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 7 potx
... 1
100 2930 2
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100 3038 5
Invoice Header Rows
100 2930 data 2
ID Line
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Invoice Header Rows
Disk Block
ID data
Data Warehouse Optimization
289
Method ... Date
03/02/2003
03/02/2003
100 23
003
002
03/05/2003
5180
Key
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Key
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Order Header Line...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 8 pptx
... White
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Chapter 9
306
Operation and
Management
O
nce the data warehouse and i...
Mastering Data Warehouse DesignRelational and Dimensional Techniques phần 9 pdf
... 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 data into the data model for the data warehouse and ... The data
acquisition programs are designed, coded, tested, and executed. You then
begin loading the data warehouse.
3. Map the data mart data model to the dat...
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