CIS515 – CLASS #1 NOTES 1. Database – is a collection of related files (Tables) 2. File (Table) – is a collection of records (Rows) 3. Record (Rows) – is a collection of fields (Columns) 4. Field (Columns) – is a collection of characters (Bytes) 5. Character (Bytes) – is a collection of 8 bits 6. Bits – the smallest representation of data‚ it is either 1 (on voltage) or 0 (off voltage) Database File Table Record Rows Field Columns Character Bytes Bits
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Concurrency Control in Database Systems Key Points The purpose of concurrency control is to ensure that one user’s work does not inappropriately influence another user’s work. In some cases‚ these measures ensure that a user gets the same result when processing with other users as that person would have received if processing alone. In other cases‚ it means that the user’s work is influenced by other users but in an anticipated way. When many transactions take place at the same time‚ they are
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Abstract Oracle Database 11 g is a comprehensive platform database‚ there are many features of the Oracle product that support different kinds of companies worldwide. This writing assignment will present an overview of some Oracle features. More specifically this paper will focus on the main features of oracle database administration‚ like security‚ indexing constraints and views. Basic user security Security refers to activities and measures to ensure the confidentiality‚ integrity
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References: [1] S. Axelsson. Intrusion detection: A survey and taxonomy. PDF document‚ 2000. http://www.cs.plu.edu/courses/CompSec/arts/taxonomy.pdf. 8 vacy‚ page 0120‚ 1999 Several intrusion detection models have been suggested. Denning’s (1986) IDES model forms the basis for several intrusion detection systems. Other approaches involve the use of agents for intrusion
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1. Create the following tables: Patient‚ Physician and treatment 2. Deploy the data in the table 3. Design the PK and FK PATIENT Patient_ID F_Name L_Name Sex StreetAddress City Province PostalCode PhoneNumber 2 Yannick McEachern M 2 Sharar Drive 1 1 K3Y6B8 (613)822-5410 3 James Gilchrist M 89 Larrond Drive 1 1 K2W8N5 (613)822-1110 4 Wanda Jackson F 17 Hassan Drive 1 1 K2D8M7 (613)822-6126 5 Adam McMullen M 25 Friendly Lane 2 1 K2E7V5 (613)828-7815 6 Krystian Luong F 78 Orr Drive 4 1 K1Y6F4 (613)828-7451
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DBMs 2013 3/14/2013 What is DBMs or Database management system? Stands for "Database Management System." In short‚ a DBMS is a database program. Technically speaking‚ it is a software system that uses a standard method of cataloguing‚ retrieving‚ and running queries on data. The DBMS manages incoming data‚ organizes it‚ and provides ways for the data to be modified or extracted by users or other programs. Some DBMS examples‚ Microsoft Access‚ SQL Server‚ FileMaker‚ Oracle‚ RDBMS‚ dBase‚ Clipper
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t) Operation of individual media 8) 5 Features u) Support diff. multimedia data type v) Handle large no. multimedia obj. w) Hierarchical storage structure & archiving data x) Information-retrieval y) Database capabilities MULTIMEDIA DATA 1. Multimedia data size [Size of media data makes storage‚ processing‚ transmission and reception of the data very costly] a. Multimedia data acquisition * Data
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Ashdown Graphic Designer: Valarie Moore Contributors: Beldalker Anand‚ Tammy Bednar‚ Don Beusee‚ Wei Hu‚ Donna Keesling‚ Bill Lee‚ Lenore Luscher‚ Ron Obermarck‚ Muthu Olagappan‚ Francisco Sanchez‚ Vinay Srihari‚ Steve Wertheimer The Programs (which include both the software and documentation) contain proprietary information of Oracle Corporation; they are provided under a license agreement containing restrictions on use and disclosure and are also protected by copyright‚ patent and other intellectual
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Exam Name: Exam Type: Exam Code: Oracle Database: SQL Fundamentals Oracle 1Z0-051 Total Questions 114 Question: 1 Which statement is true regarding the INTERSECT operator? A. It ignores NULL values. B. Reversing the order of the intersected tables alters the result. C. The names of columns in all SELECT statements must be identical. D. The number of columns and data types must be identical for all SELECT statements in the query. Answer: D Question: 2 Which three statements
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MIS5370: Database Design and Management Home work Question 1. After completing a course in database management‚ you have been asked to develop a preliminary ERD for a symphony orchestra. You discover the following entity types that should be included. • CONCERT SEASON: The season during which a series of concerts will be performed. Identifier is Opening_Date which includes Month‚ Day‚ and Year. • CONCERT: A given performance of one or more compositions
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