manually managing undo data
Tài liệu ADC KRONE - Guide - EDF - Centralized Cross-Connection for managing Ethernet Data Services doc
Ngày tải lên :
09/12/2013, 16:15
... Situation
Ethernet-based data services offer the opportunity to create differentiation, command premium
pricing, and earn higher margin for such value-added data services as transparent LANs, ... architecture.
As service providers move from being vendors of T1, T3 and OC-XX data pipes to partners
providing value-added Ethernet data services, an effective business model includes the following goals:
• ... distribution system.
Ethernet Distribution Frame
Centralized Cross-Connect System for
Managing Ethernet Data Services
application note
Figure 1
Active Network
Element Bays
Ethernet
Distribution...
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Tài liệu ADC KRONE - Guide - EDF - Centralized Cross-Connection for managing Ethernet Data Services pdf
Ngày tải lên :
10/12/2013, 03:15
... value-added data services requires innovative offerings, a competitive price, and
superior reliability and availability. Extending native Ethernet across the LAN, WAN, and MAN opens the
door for new data ... new technologies implemented,
the EDF remains constant, providing the common craft interface for managing Ethernet distribution
without service disruption.
Implementation
Creating a craft-friendly,...
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- 0
Tài liệu Ethernet Distribution Frame Centralized Cross-Connect System for Managing Ethernet Data Services pptx
Ngày tải lên :
22/12/2013, 12:15
... Frame
Situation
Ethernet-based data services offer the opportunity to create differentiation, command premium
pricing, and earn higher margin for such value-added data services as transparent LANs, ... architecture.
As service providers move from being vendors of T1, T3 and OC-XX data pipes to partners
providing value-added Ethernet data services, an effective business model includes the following goals:
• ... distribution system.
Ethernet Distribution Frame
Centralized Cross-Connect System for
Managing Ethernet Data Services
application note
Figure 1
Active Network
Element Bays
Ethernet
Distribution...
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Tài liệu ADC KRONE - Guide - EDF - Centralized Cross-Connection for managing Ethernet Data Services pptx
Ngày tải lên :
16/01/2014, 21:20
... Cable
Manager
Figure 2
Situation
Ethernet-based data services offer the opportunity to create differentiation, command premium
pricing, and earn higher margin for such value-added data services as transparent LANs, ... architecture.
As service providers move from being vendors of T1, T3 and OC-XX data pipes to partners
providing value-added Ethernet data services, an effective business model includes the following goals:
• ... distribution system.
Ethernet Distribution Frame
Centralized Cross-Connect System for
Managing Ethernet Data Services
application note
Figure 1
Active Network
Element Bays
Ethernet
Distribution...
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- 0
Tài liệu Managing and tabulating data in Excel docx
Ngày tải lên :
09/12/2013, 15:15
... mode.
Data Entry Form
33
CHAPTER 2
DATA ENTRY FORM
This chapter teaches the following topics:
— AN EASIER WAY TO TYPE IN DATA PLUS A MULTI-SERIES
“FIND (DATA /FORM)
— FORM BASED DATA ... Mode 30
CHAPTER 2 DATA ENTRY FORM 33
2.1
An Easier Way To Type In Data Plus A Multi-Series “Find” Utility (Data /Form)
33
2.2
Form Based Data Entry 33
2.2.a New data 34
2.3
Using ... The Two Roles Of Data/ Form 38
CHAPTER 3 REDUCING ERRORS IN DATA ENTRY— VALIDATION AND
AUTOCORRECT 40
3.1
Validating Data During Data- Entry 40
3.1.a Validation for numeric data 42
3.1.b...
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Tài liệu Managing time in relational databases- P1 ppt
Ngày tải lên :
24/12/2013, 02:16
... the data is moved
back to its points of origin, overlaying the original locked copies
of that data.
In today’s world of IT data management, a great deal of
the Operations budget is consumed in managing ... multiple
physical datasets across which production data is spread. In one
4
“Dataset” is a term with a long history, and not as much in use as it once was. It refers
to a named collection of data that ... an
enterprise solution to the problem of managing temporal data,
thus supporting both the semantic and physical interoperability
of temporal data across all the databases in the enterprise.
Asserted...
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Tài liệu Managing time in relational databases- P2 pptx
Ngày tải lên :
24/12/2013, 02:16
... SQL 14
Data Warehouses and Data Marts Come of Age 14
The Inmon/Kimball Religious Wars 16
The 2000s 18
Data Cubes 18
Slowly Changing Dimensions 19
Real-Time Data Warehouses 20
The Future of Databases: ... introduced
temporal data management at the database level (as opposed
to the table, row or column levels), since data warehouses are
entire databases devoted to historical data.
History Tables
On ... management of temporal
data. They were:
i. On-line analytical processing (OLAP) data cubes;
ii. Slowly changing dimensions (SCDs); and
iii. Real-time data warehousing.
Data cubes are a software...
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Tài liệu Managing time in relational databases- P3 doc
Ngày tải lên :
24/12/2013, 02:16
... temporal data that require manipulation of the data before it
can be queried. Queryable data is the opposite.
Temporal Data Management
Queryable Temporal DataReconstructable Temporal Data
Event ... Versioning.
A Taxonomy of Methods for Managing
Temporal Data
In terms of granularity, temporal data can be managed at
the level of databases, or tables within databases, or rows within
tables, or ... Taxonomy of Methods for Managing Temporal Data 34
The Root Node of the Taxonomy 35
Queryable Temporal Data: Events and States 37
State Temporal Data: Uni-Temporal and Bi-Temporal Data 41
Glossary References...
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Tài liệu Managing time in relational databases- P4 pptx
Ngày tải lên :
24/12/2013, 02:16
... VERSIONING
which contains data destined for production tables are inflow
pipeline datasets. Pipeline datasets which contain data derived
from production tables are outflow pipeline datasets.
History ... pipeline
datasets. We define a pipeline dataset as any collection of busi-
ness data that is not a production table, but that contains data
whose destination or origin is such a table.
1
Pipeline datasets
1
The ... balances.
State Temporal Data: Uni-Temporal
and Bi-Temporal Data
At this point in our discussion, we are concerned with state
data rather than with event data, and with state data that is
queryable...
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Tài liệu Managing time in relational databases- P5 pptx
Ngày tải lên :
24/12/2013, 02:16
... tick
granularity
PERIOD datatype
point in time
time period
episode
managed object
object
pipeline dataset
inflow pipeline dataset
internalization of pipeline datasets
outflow pipeline dataset
replace
supercede
withdraw
statement
Chapter ... reference.
The PERIOD Datatype
A second issue related to changes in the SQL standard is the
need for a PERIOD datatype. This new datatype will not change
the semantics of temporal data management, ... overwrite data.
Historical data can usually be found somewhere, of course, in
archives and transaction logs if nowhere else. But if it is impor-
tant to be able to quickly and easily access data about...
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Tài liệu Managing time in relational databases- P6 pptx
Ngày tải lên :
24/12/2013, 02:16
... 116
Glossary References 117
Managed objects are data which transformations and con-
strai
nts treat as a single
unit. In the relational model, individual
rows of data are the managed objects to which integrity ... period of its existence. Each of these rows is
a version of the object it represents.
Managing Time in Relational Databases. Doi: 10.1016/B978-0-12-375041-9.00005-4
Copyright
#
2010 Elsevier Inc. ... erroneous data on those versions. And this
is a shortcoming common to all best practice forms of
versioning.
When temporal gaps between adjacent versions of the same
object must be supported, data...
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Tài liệu Managing time in relational databases- P7 pdf
Ngày tải lên :
24/12/2013, 02:16
... database.
Chapter 5 THE CORE CONCEPTS OF ASSERTED VERSIONING
113
of those nine categories, and that find all of that data in the
same tables that, in today’s databases, contain only current
data, ... for a domain
to change over time. But such changes are not changes to data.
They are changes to types of data, indeed to datatypes. Domain
changes are one form of what computer scientists call ... ways
in which database schemas evolve. Both the standard temporal
model and Asserted Versioning are formalizations of temporal
data management within a snapshot of the evolution of a data-
base...
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Tài liệu Managing time in relational databases- P8 pptx
Ngày tải lên :
24/12/2013, 02:16
... series of chapters which will describe our method
of temporal data management in great detail, we will sometimes
Managing Time in Relational Databases. Doi: 10.1016/B978-0-12-375041-9.00007-8
Copyright
#
2010 ... not
the objects themselves. A row in a Policy table is not a policy;
it is data which represents the policy in our database. Through
the DBMS, for the most part mediated by application software,
we ... reference even
a single clock tick in current effective time. Our sample database,
shown in Figures 6.3 and 6.4,
does not contain
data that will
illustrate this view which presents a current assertion...
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Tài liệu Managing time in relational databases- P9 pdf
Ngày tải lên :
21/01/2014, 08:20
... reconstructable and queryable
data, we situated Asserted Versioning as, first of all, a method
of managing and providing access to queryable data. Next,
Managing Time in Relational Databases. Doi: 10.1016/B978-0-12-375041-9.00025-X
Copyright
#
2010 ... topic of temporal data manage-
ment. We presented a brief history of how temporal data has
been managed over the last quarter-century, and we also devel-
oped a taxonomy of temporal data management ... Assertions and Other Pipeline Datasets 261
13. Re-Presenting Internalized Pipeline Datasets 289
14. Allen Relationship and Other Queries 311
15. Optimizing Asserted Versioning Databases 349
16. Conclusion...
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Tài liệu Managing time in relational databases- P10 docx
Ngày tải lên :
21/01/2014, 08:20
... done manually. We describe this
process in the following section.
Generating an Asserted Versioning Database
from a Physical Data Model and Metadata
An Asserted Versioning database consists of data ... ASSERTED VERSIONING DATABASES
Temporalizing the Physical Data Model
ERwin generates a physical data model from the logical data
model shown in Figure 8.2. At that point, the physical data model
is ... works.
Translating a Non-Temporal Logical Data
Model into a Temporal Physical Data Model
The Logical Data Model
Figure 8.2 is the logical data model (LDM) of a sample data-
base we have constructed, and...
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