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The paper examines the methods of optimising Oracle focusing on the use of index clustering in a database. Experiments are conducted to test relationships between the depttom and emptom tables and compare an unoptimised database to an index clustered database. Conclusions are made about the benefits and drawbacks of clustering.
This project begins with an introduction to enterprise wide data management, its benefits and applications. Then a solution is designed for a Local Education Authority (LEA) admissions process. An ER Diagram and the Data Flow Diagram are modelled, and the assumptions made during the design and development of the solution are listed at this stage. The application is then developed using Oracle Designer 2000. A front end is created using the same, and the table is populated with sample data for testing and evaluation. This is followed by a critical evaluation of the design, describing strengths and weaknesses of the design.
The paper looks into the need of protecting information technology from unauthorized access outlining the structure of a database security (DS) plan and suggesting tips to ensure DS.
The paper looks at the database management system examining one of its files known as Data Dictionary (DD) describing the use of the metadata, its contents, etc. The process of organizing data to reduce redundancy (database normalization) is described.
This essay describes transaction processing of databases first in general terms and then critically assesses it using an example to illustrate what the database does, and why is it useful. An example of a commercial use is illustrated through the use of the database transaction processing with tables, sample data and sample queries are also given. The essay focuses on immediate update due to the word limit.
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