Difference Between ERD and DFD ERD and DFD are data presentation models that help in identifying the flow of data as well as inputs and outputs. They are important as they enable effective communication between members of different departments in an organization. There are similarities in the two types of data presentation models although there are differences that will be talked about in this article. DFD’s are systematic representation of how data flows in an organization‚ how and from where
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DATABASE ARCHITECTURE DATABASE CONCEPTS Figure 1.1 – Main Concepts of a DBMS Database is an organized collection of data. Database management system (DBMS) is a computer program (or more typically‚ a suite of them) designed to manage a database‚ a large set of structured data‚ and run operations on the data requested by numerous users. Data Manipulation Language (DML) is a family of syntax elements similar to a computer programming language used for inserting‚ deleting and updating
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Data Bases Data base approach focuses on data integration and data sharing‚ views data as an organizational resource Data Base Management System (DBMS) refers to programs that control the data and interfaces between the data and application programs The data based‚ DBMS‚ and the application programs together are termed as data base system Data base administrator is the person responsible for the data base. Data base systems separate logical and physical views of data‚ referred to
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This archive file comprises DBM 380 Week 1 Individual Assignment Database Design Paper Write a 350- to 700-word paper in which you do the following: • Explain what database systems arc and how they are used at your workplace. • Define database architecture. For the database systems in your workplace‚ identify which architecture they fall under. • Define relational database architecture. Consider Microsoft® Access*’‚ Microsoft SQL Server®’‚ Oracle®‚ IBM DB2®‚ and so on. Include
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Choice Questions (MCQ) and Short Essays - 30 points total Select the best answer for the MCQ and write a minimum of two full sentences for the short essays questions. (2points each) Part 2. Logical Database Design - 35points total Convert an ERD into data structures. (Specify tables‚ primary keys‚ and foreign keys and handle many-to-many relationships and normalization.) Part 3. Hands on SQL Programming: Data Manipulation and Querying – 35 points total Log into SQL server‚ then to the
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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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Comparison of Traditional File-Based Approach and Database Approach At the beginning‚ you should understand the rationale of replacing the traditional file-based system with the database system. File-based System File-based systems were an early attempt to computerize the manual filing system. File-based system is a collection of application programs that perform services for the end-users. Each program defines and manages its data. However‚ five types of problem are occurred in using
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Question 1 Given the following business rules‚ create the appropriate Crow’s Foot ERD. a. A company operates many departments. b. Each department employs one or more employees. c. Each of the employees may or may not have one or more dependents. d. Each employee may or may not have an employment history. Question 2 The Hudson Engineering Group (HEG) has contacted you to create a conceptual model whose application will meet the expected database requirements for the company’s
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part) SORRY! Advantage at dis advantage ng open office pwde Kayla lester naman‚ gagwa pa ko SAD natin at android naming. Ala pa ko sisimulan.please pls. pls DBMS: open office org base Developers: Sun Microsystems (1999–2009) and Oracle Corporation (2010–2011) DBMS Price in the Philippines: openoffice org is a open software DBMS Clients: Singapore’s Ministry of Defence Banco do Brasil ESIC‚ IIT Bombay‚ National Bank for Agriculture and Rural Development n Japan‚ conversions included
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DBMS CONCEPTS 1. Database A database is a logically coherent collection of data with some inherent meaning‚ representing some aspect of real world and which is designed‚ built and populated with data for a specific purpose 2. DBMS It is a collection of programs that enables user to create and maintain a database. In other words it is general-purpose software that provides the users with the processes of defining‚ constructing and manipulating the database for various applications. 3. Database
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