Data Mining and Warehousing_Unit3_GP

Data Mining and - Running head DATA MINING AND DATA WAREHOUSING 1 Tables in 1N 2N 3N Forms Evaluating Keiths and Michaels work Data Mining and Data

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Running head: DATA MINING AND DATA WAREHOUSING 1 Tables in 1N, 2N, 3N Forms Evaluating Keith’s and Michael’s work Data Mining and Data Warehousing – Final Draft William A. Rumph Jr. ITCO435-1102B-01: Data Mining and Warehousing Week One – Discussion Board Assignment Dr. Darcel Ford June 26, 2011
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Running head: EVALUATING KREGG’S AND MICHAEL’S WORK 2 The first part of the analysis is to look at two student’s table structure and SQL statements. As is often with databases, most of them have already been designed or in some part of design when an expert is called in. As a database expert, the analysis of the existing database structure and recommending changes is a part of the job. The first part is to evaluate two other’s normalized tables and evaluate their SQL statements.
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Running head: EVALUATING KREGG’S AND MICHAEL’S WORK 3 In Keith’s SQL statements he demonstrates how to access the pickup table to do several types of searches. His structure looks good and he shows how to manipulate the database table in order to obtain the items he wishes to find. His use of inner joins and select statements are a good choice to show the strengths of the SQL commands. Michael appears to have a strong command of the SQL language. He establishes relationships and foreign keys as well as performing different searches and view statements. He shows the power of the language for programmers to find or fine-tune the database. This all took quite some time for students to turn in reports to analyze, thus a comprehensive study of the different skills of both Keith and Michael may show just how strong their skills are in programming. Both demonstrated a good working knowledge of SQL and I believe they would have no problems becoming programmers in this field. It should be noted that I did not establish my foreign keys in my statements.
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This note was uploaded on 02/17/2012 for the course ITCO 101 taught by Professor Gugenhiem during the Spring '12 term at AIU Online.

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Data Mining and - Running head DATA MINING AND DATA WAREHOUSING 1 Tables in 1N 2N 3N Forms Evaluating Keiths and Michaels work Data Mining and Data

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