INDEX 1. SQL BASICS The Structured Query Language (SQL) is a language that enables you to create and operate on relational databases‚ which are sets of related information stored in tables. The basic structure of a SQL expression consists of three clauses: Select From Where SELECT:- The select clause is used to list the attributes desired in the result of a query. It corresponds to the projection operation of the relational algebra. FROM:- The from clause lists the relation to
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What Is Super Key In Dbms? Superkey - A superkey is defined in the relational model as a set ofattributes of a relation variable (relvar) for which it holds that inall relations assigned to that variable there are no two distincttuples (rows) that have the same values for the attributes... in Software What Is Super Key In Dbms Give Example? A superkey is a combination of attributes that can be uniquely used to identify a database record.With primary key if any other attribute is added then that
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This document of DBM 380 Syllabus shows the following information: Course Description This course covers database concepts. Topics include data analysis‚ the principal data models with emphasis on the relational model‚ entity-relationship diagrams‚ database design‚ normalization‚ and database administration. General Questions - General General Questions DBM/380 College of Information Systems Technology Database Concepts LATEST VERSION OF SYLLABUS DBM380 Week 1 Individual Assignment
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It is important that universities not only track assets but inventory as well to ensure office supplies‚ school supplies lab consumables are properly stocked to increase and improve education performance. Track standard items by quantity such as office supplies‚ janitorial chemicals and lab consumables used in lab working environments. Keep up to date on when to reorder‚ where these items go‚ and how much are used on a daily basis by generating configurable reports to increase visibility. Know
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computerized system enhanced our lifestyle. The proponents can see that the society has made a very real commitment to computer. A computer is an electronic device design to manipulate and used to store data and information. The researchers admit that the schools and people in the business world have reached the point of no return in its dependence on computer. Most of the schools are experiencing problems in their manual system that’s why most of them are engaging with a computerized system to eliminate
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the Child Friendly School System (CFSS) in connection to the protection of children in school. Their aim is to protect the pupil in all aspect of abuses whether it is from peers‚ parents‚ community and even from cruel teachers. Protect the child from physical‚ mental‚ emotional and verbal abuse. DepEd Memorandum No. 73‚ s. 2006 dated February 28‚ 2006 mandated the program of the Child-Friendly School System. Trainings were done afterwards to fully grasped the aims of the system. DepEd Order No
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would result to use lot of complex queries which could lead to performance degrade as it consumes lot of time when used for reporting purposes‚ having seen the above problems it is considered as a bad design while designing a relational database management system. 2. Create several new attributes‚ one for each value of the multivalued attribute as shown in table below. Employee Table Emp_no Emp_Name Degree1 Degree2 Degree3 1 Bangar Reddy Aluri B.TECH MS MPS 2 John MBBS MD 3 Anthony BA LLB By looking
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Executive Summary The amount of deployed instances of Microsoft SQL Server in the enterprise is on the rise as a database management system. Microsoft set out to provide an effective database management system that meets multiple goals for information technology organizations. SQL Server‚ a Microsoft product‚ is designed to deliver scalable solutions while offering ease of use and deployment‚ self maintenance and tuning‚ low resource overhead‚ and low administrator skill set requirements. The
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expects to be able to open by double-clicking the document’s icon. In order to keep track of the files and stay organized‚ file management system has become a major strategic factor in companies’ development. It is important to get the right information circulated to the right people‚ as efficiently as possible‚ yet still keep it secure. File management system provides a way for companies to organize their information‚ in all its forms‚ in one place. OVERVIEW
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Character The most basic logical data element is the character‚ which consists of a single alphabetic‚ numeric‚ or other symbol. One might argue that the bit or byte is a more elementary data element‚ but we should remember that those terms refer to the physical storage elements provided by the computer hardware. Field The next higher level of data is the field‚ or data item. A field consists of a grouping of related characters. For example‚ the grouping of alphabetic characters in a person’s
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