Database Architecture DBM/380 –Database Concepts September 9‚ 2013 Sandra Graca Database Architecture Database systems are a way to collect and store large amounts of data. Essentially‚ database are electronic filing systems that store raw data to be later retrieved as useable information (Skillport‚ ). Using such a tool simplifies the filing and storage of all sorts of information used by businesses today. A common type of database is a customer/inventory database. Different tables
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A. Database concepts 1 Basic SQL Command: SQL commands which are worth knowing : TRIM (for stripping spaces) LEFT (for fetching the data from left side of string) RIGHT (for fetching the data from right side of string) REPLACE (for replacement in string) CONVERT (for converting data from one type to another) LEN (for fetching length of string) STUFF (way to insert one string into another) DIFFERENCE (diff between two strings return 4 represents no diff or strong similarity)
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/380 Database Design Paper DBM/380 October ‚ 2012 University of Phoenix Database Design Paper A database is a set of programs and applications used to store data‚ this allows the data to be used by different individuals in different areas and access information from it quickly. A database stores the information so it can be used at a later time so additional information can be added‚ taken away‚ or used as needed. Once in the database the data is compressed so it takes up less space
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Relational Database Concepts and Applications Professor Kevin W….. By Bob Bobson March 7‚ 2014 Introduction In order to successfully transition from our current paper and email based equipment request method to a completely paperless online system‚ we must build and implement a relational database. A relational database will allow us to store‚ filter‚ make changes to‚ and share of the data that is needed in our new online equipment ordering system. Relational Database Overview
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HISTORY OF DATABASE MANAGEMENT SYSTEM With the progress in technology in the areas of processors‚ computer memory‚ computer storage and computer networks‚ the sizes‚ capabilities‚ and performance of databases and their respective DBMSs have grown in orders of magnitudes. The development of database technology can be divided into three eras based on data model or structure: navigational‚ SQL/relational‚ and post-relational. The two main early navigational data models were the hierarchical model
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Database Normalization and Logical Process Concept paper This short paper will explain with a simple example the process and the need of normalization in the most of the business databases. Complete proposal break down (Timeline phases‚ Financial phases) will be submitted per management request. Overview At first any database should be designed with the end user in mind. Logical database design‚ also referred to as the logical model‚ is the process of arranging data into logical‚ organized groups
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PT2520 DataBase Concepts Unit 8 Research Assignment 1 1. Find out how MySQL manages basic authentication and authorization. In the Microsoft SQL Server‚ authentication process occures when someone wanted to make a connection to Microsoft SQL Server. User and password is required for some one to be able to access resources of the Microsoft SQL Server. Once the authentication process finishes‚ Microsoft SQL Server takes control of authorizing user’s can access to object ( Database‚ table‚ trigger
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DataBase Concepts DataBase – a collection of information related to specific entity (e.g. organization‚ bank‚ college‚ library etc.) DBMS – (Database management system) – a application through which we can control the database i.e. we can store data into database‚ update the data and delete also we can retrieve the data from database. For doing these operation DBMS support a language called Structured Query language (SQL). SQL accomplishes many powerful tasks with a mere seven statements: SELECT
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CS6083: Principles of Database Systems ! Systems Concepts‚ 6th Edition‚ McGraw-Hill 2009. (The 4th and 5th editions are also OK to use.)! Will use slides from book as well as extra material! Posted on course page a day ahead of class! Database System Concepts - 6th Edition! Modified by T. Suel for CS6083‚ NYU Poly‚ Fall 2012! 1.1! ©Silberschatz‚ Korth and Sudarshan! CS6083: Principles of Database Systems ! Prerequisites: Data Structures‚ Operating Systems! Binary search trees
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Designing Databases: Building a Conceptual Data Model [1] Fundamentals of Databases Alvaro A A Fernandes School of Computer Science University of Manchester Acknowledgements 2 These slides are minor adaptaAons of material authored and made available to instructors by Ramez Elmasri
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