Tuesday, May 12, 2009

FINAL QUESTION NO. 1

For those who are working, interview your IT in-charge and ask him/her to describe the computer database systems used in the company. Write your answer in 1-2 paragraphs. Further, ask also the benefits and/or disadvantages derived from these database systems. For those who are not working, research one company in the net who is using computerized database systems. Describe the use and/or nature of these systems and describe too the benefits/disadvantages from these systems. Include your reference.

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Acme Markets has these kind of database system. If they requests for information from a database are made in the form of a query, which is a stylized question. For example, the query

SELECT ALL WHERE NAME = "SMITH" AND AGE > 35

requests all records in which the NAME field is SMITH and the AGE field is greater than 35. The set of rules for constructing queries is known as a query language. Different DBMSs support different query languages, although there is a semi-standardized query language called SQL (structured query language). Sophisticated languages for managing database systems are called fourth-generation languages, or 4GLs for short.

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