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Discussion
Questions
1.What is Data ?
2.What is Information ?
Give an example of a database used (either manual - e.g. a hard copy phone book, or automated/computer based) in your daily life (this can be an example of a database in your home or work), and comment on its usability. Describe the basic structure of this database (i.e. is there more than one entity/table?, how many fields are there?, what are examples of these fields? etc.). Be sure and provide an APA style reference either personal or otherwise for your database (see the course FAQs for examples if needed).
Build a relational database that will allow for querying things such as products sold, customer purchases, total apartment purchases, and total spent per apartment.
Consider a relation stored as a randomly ordered ?le for which the only index is an unclustered index on a ?eld called sal. If you want to retrieve all records with sal > 20, is using the index always the best alternative? Explain.
imagine that you have been hired as the database administrator for a local department store. the department store has
In each task, please feel free to make any assumption necessary for the readers. The explanation of your assumptions can help the readers to understand what you have considered differently but as important criteria in producing your model.
Design an updateable database for storing customer and sales data. Explain how to deal with the problems of missing data.
Write the procedure named Get_frequencies which constructs character frequency table. Input to procedure must be a pointer to the string, and pointer to array of 256 doublewords.
You will need to start by creating an ER model, including both Entity Classes and attributes. This is to be done in MySQL Workbench
Consider a video game store. For each game, the database contains information about title, producing company name, designer(s) name(s), version of the game, type of the game and characters in the game.
Consider system which produces budget reports for department at university. For whichever system you select, answer the following design questions. Who will use output?
Select a publicly traded corporation for which you would like to work or are currently working. Research the corporation on its own Website, the public filings on the Securities and Exchange Commission EDGAR database and any other sources you can ..
Create an ERD that represents the entities, attributes, the relationships between entities, and the cardinality and optionality of each relationship that are described by this business rule
Discuss at least two reasons organizations use databases and DBMS's.Discuss one advantage a database has over a spreadsheet.
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