History of Relational Database Hao-Wei He Wilmington University October 9‚ 2010 Abstract Database system have been inseparable with our daily life‚ since IBM developed the hierarchical database management system in 1969‚ database system has been innovated many times‚ such as hierarchical database‚ network database‚ relational database‚ and object-oriented database. Nowadays‚ relational database still is the most popular model used by different industries; this article is going to introduce
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Introduction to Databases BDS: Connolly‚ Begg‚ Holowczak Pratt/Adamski Elmasri/Navathe (3rded.) Kroenke Book (7thed.) McFadden (5thed.) Mata-Toledo / Cushman Ch. 1 and 2 Ch. 1 Ch. 1 and 2 Chap. 1 and 2 Chap. 1 Schaum’s Outlines Ch. 1 Q: What is a Database ? Answer from BDS: A shared collection of logically related data and descriptions of that data‚ designed to meet the needs of na organization. Answer from Elmasri/Navathe: A Database (DB) is collection of related data - with the
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Socioemotional Development During infancy‚ a baby acquires a sense of self as begin “other than” the people with whom he she can elicit responses. As toddler becomes a preschooler that self-recognition clarifies into cognitive representational self-understanding which becomes the basis of self-conception. For example‚ the preschool girl will‚ at some point‚ realize that she is different from other children in various ways. Some are boys‚ some are taller or shorter with different hair and eyes‚
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The waterfall model is a sequential design process‚ often used in software development processes‚ in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception‚ Initiation‚ Analysis‚ Design‚Construction‚ Testing and Maintenance. The waterfall development model originates in the manufacturing and constructionindustries; highly structured physical environments in which after-the-fact changes are prohibitively costly‚ if not impossible. Since no formal software
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Analysis models are model used in software development to help in understanding the application area being addressed by a system‚ before the stages of system design and coding are reached. In another word‚ analysis models describe the data handled in an application and the various processes by which it is manipulated. Analysis and Design models fulfill the same needs and provide the same sorts of benefit. Software systems that both analysis and design models are supporting or interacting with
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“Personal Reflections” For my personal reflection I have chosen to use the Asian American identity development model because I am half Asian (e.g. half Filipino). The text states that this model‚ has not advanced as much as the African American model. It goes on to explain the example and findings of Chinese American students treated at the University of California‚ Berkeley‚ Counseling Center: (a) traditionalist— a person who internalizes conventional Chinese customs and values‚ resists acculturation
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DATABASE SPECIFICATIONS 1. TABLE NAME : TBLGENDER FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES GID IntN/A PK‚ IDENTITY NONE GDESC Varchar6 NOT NULL NONE 2. TABLE NAME: TBLGRDLVL FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES GRDID IntN/A PRIMARY KEY‚IDENTITY NONE GRDLVLDESC VarChar15 NOT NULL NONE GRDSECTION Varchar15 NOT NULL NONE 3. TABLE NAME: TBLRANK FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES RANKID IntN/A PRIMARY KEY‚IDENTITY NONE RANKDESC Varchar20 NOT NULL NONE 4.
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Brief History Of Databases In the 1960’s‚ the use of main frame computers became widespread in many companies. To access vast amounts of stored information‚ these companies started to use computer programs like COBOL and FORTRAN. Data accessibility and data sharing soon became an important feature because of the large amount of information required by different departments within certain companies. With this system‚ each application owns its own data files. The problems thus associated with
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NAME: SUNIL KUMAR BUTTAGANDLA SID: 10000126442 Every team goes through the five stages of team development. First‚ some background on team development. The first four stages of team growth were first developed by Bruce Wayne Tuckman and published in 1965. His theory‚ called "Tuckman’s Stages" was based on research he conducted on team dynamics. He believed that these stages are inevitable in order for a team to grow to the point
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Evaluation of future development strategies for Boeing and Airbus Seminar Paper Transportation University of Applied Sciences HTW Chur Dr. Oec. HSG Andreas Wittmer 15th January 2010 Wanner Marco‚ Haag Marius‚ Mäder Liliane‚ Tinu Joseph & Schuler Christoph Table of contents 1 Introduction .................................................................................................... 1 1.1 Delimitation .......................................................................
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