database systems using oracle ebook
Database Systems Engineer Examination.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...
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Database Systems Engineer Examination.pdf
... 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 6,750112 Public Sector Systems Development 50 26 2,500 1,325113 Testing 80400 0114 Distribution Systems Development 333 149 16,650 7,492… … … … …...
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Database Systems Engineer Examination.pdf
... received Shipment Shipment detail Order detail Direct shipment ABOctober, 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 ... systemSales performance Masters Masters, sales performance, etc. Operations database Information system Analytical database - 5 - (Shipment scheduling) • Order information is organized into...
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Inclusion of new types in relational database systems
... "=" and OPR-2 replacing "<". If so, the rela-tions to be joined using OPR can be sorted using OPR-2 and then merged to produce the required answer.The last piece of needed ... ACM-TODS,June 1976.[BERN81] Bernstein, P. and Goodman, N., "Concurrency Control in Distributed Database Systems, " ACM Computing Surveys, June 1981.[BROW81] Brown, M. et. al., "The Cedar ... can simply modify relations to B-tree using any class ofoperators defined in the AM relation. The only addition to the modify command is a clause " ;using class"which specifies what operator...
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Database Design Using Entity-Relationship Diagrams
... students in database classes and to help database practitioners in understanding how to arrive at a definite, clear database design using an entity relationship (ER) diagram. In designing a database ... Although the Barker /Oracle- like model is quite popular, it is implementation dependent upon knowledge of relational databases. The Barker /Oracle model maps directly to a relational database; there ... Database Systems , 3rd ed., Addison-Wesley, Reading, MA, 2000. Maier, D. The Theory of Relational Databases, Computer Science Press, Rockville, MD, 1983. Norman, R.J. Object-Oriented Systems...
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Digital Sound Recorder: A case study on designing embedded systems using the UML notation.
... design ofan embedded system using the Unified Modelling Language (UML). Theanalysed system is a digital sound recorder, or Dictaphone. The design hasbeen implemented using an embedded processor ... updates the internalrepresentation of the time, by using the nextSecond method. When the Time objectwraps around, then the date is updated using the nextDay method. The class diagram forthe ... monitoring or data logging tasks.Forces• Embedded real-time systems must complete some tasks within strict deadlines.Interactive systems do no have these restrictions. They usually are easier...
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4 Creating a Configuration and Physical Standby Database by Using Enterprise Manager
... © 2006, Oracle. All rights reserved.4 - 25Viewing Data Guard PerformanceCopyright © 2006, Oracle. All rights reserved.4 - 8 Using the Add Standby Database WizardCopyright © 2006, Oracle. ... 2006, Oracle. All rights reserved.4 - 20Standby Database Creation: Job DetailsCopyright © 2006, Oracle. All rights reserved.4 - 9Step 1: Specify the Backup TypeCopyright © 2006, Oracle. ... 5 Using Enterprise Manager to Create a Broker Configuration•Use the Add Standby Database Wizard to:–Create a broker configuration–Add a database to a broker configuration •Primary database...
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Fundamentals of database systems 6ed
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Tài liệu Creating a Logical Standby Database by Using Enterprise Manager ppt
... logical standby database •Create a logical standby database by using Enterprise ManagerCopyright © 2006, Oracle. All rights reserved.7 - 4Benefits of Implementing aLogical Standby Database •Provides ... VIEW LOGCopyright © 2006, Oracle. All rights reserved.7 - 18 Using the Add Standby Database WizardSelect “Create a new logical standby database. ”Copyright © 2006, Oracle. All rights reserved.7 ... column in V $DATABASE. • Database guard level is set to ALL by broker automatically on the logical standby database. • Database guard level applies to all users except SYS.Copyright © 2006, Oracle. ...
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