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Database Systems Engineer Examination.pdf
Ngày tải lên :
24/08/2012, 15:44
...
Q22
When comparing a relational database with an object-oriented database, which of the following
statements correctly describes the object-oriented database?
a) It can express real world ... precision ratio used as
measures in evaluating information retrieval systems, such as document retrieval systems and
data retrieval systems? Here,
A
,
B
and
C
indicate the following.
A
: The ... is a database in which data additions, changes, and deletions occur at a certain low
frequency. The interval between backups has been increased to twice the current level for
backing the database...
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Database Systems Engineer Examination.pdf
Ngày tải lên :
24/08/2012, 15:44
... Backup/Restore feature
(i) Database backup and restoration can be done for the entire database or for
individual tables.
(ii) “Entire database backup” saves the entire database on backup media. ... After the database restored by entire database backup, it can be restored to a
specific time using the acquired update log and roll-forward processing.
(iii) The time required for recovery using ...
Network Development
180 135 9,000 6,750
112
Public Sector Systems
Development
50 26 2,500 1,325
113
Testing
80400 0
114
Distribution Systems
Development
333 149 16,650 7,492
…
…
…
…
…...
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Database Systems Engineer Examination.pdf
Ngày tải lên :
24/08/2012, 15:44
... received
Shipment
Shipment detail
Order detail
Direct shipment
A
B
October, 2005 VITEC
Database Systems Engineer
Examination (Afternoon, Part 2)
1. Examination Time-14:30-16:30 (120 ...
(1) Entity types are indicated using rectangles.
(2) The entity type name is written inside the rectangle.
(3) The relationship between entity types is indicated using a line.
(4) For a “1-to-1 ... system
Sales performance
Masters
Masters,
sales performance,
etc.
Operations
database
Information system
Analytical
database
- 5 -
(Shipment scheduling)
• Order information is organized into...
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Tài liệu Introduction to Database Systems- P14 pdf
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14/12/2013, 16:15
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Tài liệu Introduction to Database Systems- P16 pdf
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Tài liệu Intelligent Design Retrieving Systems Using Neural Networks pdf
Ngày tải lên :
17/12/2013, 06:15
... First, these systems focus on the processing of textual sources. This type
of design information would be hard to describe using traditional textual data.
Another major problem with using traditional ... Manufacture, 208(B1):71-80.
Chang, C.A. and C Y. Tsai, (1997) Using ART1 neural networks with destructive solid geometry for
design retrieval systems, Computers in Industry, 34(1):27-41.
Chen, C.S. ... 1-
4):227-233.
Garza, A.G. and M.L. Maher, (1996) Design by interactive exploration using memory-based techniques,
Knowledge-Based Systems, 9:151-161.
Kumara, S.R.T. and S.V. Kamarthi, (1992) Application...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P19 pdf
Ngày tải lên :
24/12/2013, 02:17
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732
Chapter 13
N
Managing Data and Undo
Database Trigger Events
Database event triggers fire when the specified database- level ... work in Oracle 11g database and how undo is managed.
To create, change, and remove data from an Oracle Database, use the
INSERT
,
UPDATE
,
MERGE
, and
DELETE
statements.
Although Oracle ... learn about all the database- management and performance-
management tools available to DBAs for better database administration.
Proactive Database Maintenance
You can monitor your systems for management...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P21 pdf
Ngày tải lên :
24/12/2013, 02:17
... 26-OCT-08
RMAN>
Backing Up the Database
An Oracle 11g database can be backed using different modes, depending on the
ARCHIVELOG
setting of the database. If the database is in
ARCHIVELOG
mode, ... B
95127c14.indd 832 2/17/09 2:54:23 PM
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Chapter
15
Implementing
Database Backups
ORACLE DATABASE 11g:
ADMINISTRATION I EXAM OBJECTIVES ... keep availability high because the database is open while the backup is performed.
Backups can be performed using two methods: using user-managed backup or using
Oracle s backup and recovery tool...
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Tài liệu Introduction to Database Systems- P2 pdf
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24/12/2013, 03:15
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Tài liệu Introduction to Database Systems- P6 pdf
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Tài liệu Database Systems - Part 2 pdf
Ngày tải lên :
24/12/2013, 12:16
... Mappings, and Instances (cont.)
COP 4710: Database Systems (Day 3) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction to Database Systems – Part 2
BÀI 2, 1/2 ngày
School ... (cont.)
COP 4710: Database Systems (Day 3) Page 15 Mark Llewellyn
•
The overall description of the database is called the database
schema.
•
There are three different types of schema in the database ... Conceptual Level
COP 4710: Database Systems (Day 3) Page 10 Mark Llewellyn
•
The external level is the user’s view of the database.
•
This level describes that part of the database which is
relevant...
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Tài liệu Database Systems - Part 13 pdf
Ngày tải lên :
21/01/2014, 18:20
... view
COP 4710: Database Systems (Day 17) Page 15 Mark Llewellyn
The PRODUCT Table in Access(-)
COP 4710: Database Systems (Day 17) Page 9 Mark Llewellyn
An Example Database
COP 4710: Database Systems ... column
COP 4710: Database Systems (Day 17) Page 49 Mark Llewellyn
Using Computed Columns and Column Aliases
(cont.)
The computed
column with its
alias.
COP 4710: Database Systems (Day 17) ... Database Systems (Day 17) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction to SQL
BÀI 13, 2 ngày
COP 4710: Database Systems
Spring 2004
Introduction to SQL
BÀI 13, 2 ngày
School...
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Tài liệu Database Systems - Part 14 pdf
Ngày tải lên :
21/01/2014, 18:20
... tables.
•
Views are created in SQL using the CREATE VIEW command.
COP 4710: Database Systems (Day 18) Page 34 Mark Llewellyn
An Example Database( +)
COP 4710: Database Systems (Day 18) Page 24 Mark ... COP 4710: Database Systems (Day 18) Page 27 Mark Llewellyn
Union Operator (cont.)
COP 4710: Database Systems (Day 18) Page 42 Mark Llewellyn
Join With Using Clause (cont.)
•
An ... attribute.
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)./
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4.5
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667.6
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COP 4710: Database Systems (Day 18) Page 2 Mark Llewellyn
An Example Database( +)
COP 4710: Database Systems (Day 18) Page 7 Mark Llewellyn
The LIKE Special...
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Tài liệu Oracle® Database 2 Day + Performance Tuning Guide pdf
Ngày tải lên :
20/02/2014, 05:21
... document, see the following
documents:
■ Oracle Database 2 Day DBA
■ Oracle Database Administrator's Guide
■ Oracle Database Concepts
■ Oracle Database Performance Tuning Guide
Conventions
The ... intended for Oracle database administrators (DBAs) who want to
tune and optimize the performance of their Oracle Database. Before using this
document, you should complete Oracle Database 2 Day ... Step-By-Step Performance Tuning
Using Oracle Diagnostics Pack, Oracle Database Tuning
Pack, and Oracle Enterprise Manager
Viewing Snapshot Statistics
3-10 Oracle Database 2 Day + Performance Tuning...
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