database systems using oracle pdf

... 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...

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 … … … … …...

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...

Ngày tải lên: 24/08/2012, 15:44

... 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...

Ngày tải lên: 24/12/2013, 12:16

... 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...

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. ### ###  #-#$ )./ 01 0213203 4.5 651 667.6 880 1265020 2965:20 620# 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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Ngày tải lên: 07/07/2014, 06:20

... Tip Using stored procedures instead of INSERT, UPDATE, and DELETE statements can also improve performance. You should use stored procedures if your database supports them. SQL Server and Oracle ... to Add, Modify, and Remove Rows from the Database You can get a DataAdapter object to call stored procedures to add, modify, and remove rows from the database. These procedures are called instead ... to push your changes to the database. Let's take a look at how to set the InsertCommand, UpdateCommand, and DeleteCommand properties of your DataAdapter. Using Stored Procedures to Add,...

Ngày tải lên: 14/12/2013, 13:15

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Ngày tải lên: 14/12/2013, 16:15

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Ngày tải lên: 14/12/2013, 16:15

... 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...

Ngày tải lên: 17/12/2013, 06:15

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Ngày tải lên: 24/12/2013, 03:15

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Ngày tải lên: 27/02/2014, 07:20

... role chunking using support vector machines. In HLT-03. R. Higashinaka, N. Miyazaki, M. Nakano, and K. Ai- kawa. 2004. Evaluating Discourse Understanding in Spoken Dialogue Systems. ACM ... Association for Computational Linguistics Stochastic Discourse Modeling in Spoken Dialogue Systems Using Semantic Dependency Graphs Jui-Feng Yeh, Chung-Hsien Wu and Mao-Zhu Yang Department ... between words in the user’s utterance using the semantic dependency graphs. Dependency relation between the headword and other words in a sentence is detected using the semantic dependency grammar....

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