terms: data, database, DBMS, database system, database catalog, program-data independence, user view, DBA, end user, canned transaction, deductive database system, persistent object, meta-data, and transaction-processing application. • Data – known facts that can be recorded and that have implicit meaning. • Database – a collection of related data with an implicit meaning. • DBMS – a collection of programs that enables users to create and maintain a database • Database system –
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Task 1 Home Office (50 marks) A) Explain, giving three reasons (each reason a paragraph in length), why the home office would not use a client-server network? -The three reasons why the home office would not use a client server network, because there are no servers in this network. Servers play a very important role in a client network since it is equipped with the hardware and software for people to share documents other sorts of files through it. Other reason for not using client network
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existing course catalog database where all course information is maintained. This database is an Ingres relational database running on a DEC VAX. Fortunately the college has invested in an open SQL interface that allows access to this database from college’s Unix servers. The legacy system performance is rather poor, so the new system must insure that access to the data on the legacy system occurs in a timely manner. The new system will access course information from the legacy database but will not update
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The database development Process Vamsinadh Machavarapu IST 7000 Wilmington University Table Of Contents Introduction...........................................................................................3 SDLC Phases.........................................................................................3 • Requirements Analysis...................................................................4 • Database Design..............................................
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1. What is different between TRUNCATE and DELETE? The Delete command will log the data changes in the log file where as the truncate will simply remove the data without it. Hence Data removed by Delete command can be rolled back but not the data removed by TRUNCATE. Truncate is a DDL statement whereas DELETE is a DML statement. 2. What are ORACLE PRECOMPILERS? A precompiler is a tool that allows programmers to embed SQL statements in high-level source programs like C, C++, COBOL, etc. The
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Databases Chapter 1 – Intro Lab 1.2 1. Nouns: doctors, patients, drugs, side effects. 2. Major Topics: doctor Records, patient medical records, side effects / symptoms, and screening records. Lab 1.3 1. Major Topics: faculty, software, and computers. 2. Draft statement of work that includes scope, objectives, and preliminary timeline: a. Scope – A database with the ability to track faculty and staff computers and software. b. Objectives – Faculty software, version
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Database Tutorial Question The following relational database table is an extract of part of an “unnormalised” Student table: StudNum | StudName | StudAddr | PhNum | CourseCode | CourseName | UnitID | UnitName | StaffID | StaffName | StaffOffice | Grade | 101 | Jenny Teo | 123a Norwich Hse | 9911345 | 20241 | BBus(Acc) | Acc24 | Finance 2a | S045 | Paul Smith | D401 | D | 101 | Jenny Teo | 123a Norwich Hse | 9911345 | 20241 | BBus(Acc) | Law01 | Intro. Law | S022 | Elaine Ng | F213 | C |
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NAVAL POSTGRADUATE SCHOOL Monterey, California THESIS A REQUIREMENT ANALYSIS FOR THE NAVAL POSTGRADUATE SCHOOL’S ALUMNI DATABASE SYSTEM by Lawrence M. Gaines September 2002 Thesis Advisor: Co-Advisor: Julie Filizetti Daniel Dolk Approved for public release; distribution is unlimited THIS PAGE INTENTIONALLY LEFT BLANK REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response
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CIS 510 DATABASE DESIGN (WEEK 2) Submitted by: ShaileshwarParimala Arshad Ahmed Mohammed Mohammed WajahathHussain SajjadHussain Syed Uma Devi Singam Types of Database Management Systems A database management system (DBMS) is system software for creating and managing databases. The DBMS provides users and programmers with a systematic way to create, retrieve, update and manage data. [pic] Advantages of DBMS: • Data abstraction and independence • Data security
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the same data are stored unnecessarily at different places. This can lead to poor data security, and data inconsistency. 3. What is data independence, and why is it lacking in file systems? b. Data independence is when you change the data storage characterizes and it doesn’t affect the program’s ability to access the data. 4. What is a DBMS, and what are its functions? c. A DBMS (database management system) is a collection of program that stores and manages data and control
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