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Some vendors' versions of SQL have proprietary extensions (i.e., additional functionality) not found in standard SQL.
Why do you think they do this? In your view, what are the advantages and disadvantages of doing this?
Is it a good idea for end users (developers, DBAs, etc.) to use these extensions? Discuss how SQL differs from a programming language that you are familiar with.
What are your general opinions of SQL so far? Is it easy or hard? Useful or not useful?
What model would you use for this estimation? How accurate would it be and how would you obtain the estimate?
In what business database environments is denormalization appropriate and why. What would denormalization specifically involve. What is normalization
the order in which the tables in your queries are joined can have an effect on the query performs. if your query is
A distributed database management system (DDBMS) stores a logically related database over two or more physically distinct locations connected by a computer network.
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
Create a database in an SQL server, and translate this design into SQL server tables with appropriate fields. The data types above are general types
Don't worry about going through the normalization process at this point. Identify the appropriate relationships among the entities, and define the minimum and maximum cardinality of each relationship. Make some additional assumptions about the bus..
In a database, the primary key field is used to
Discuss your solution to archiving the company's data, and be prepared to defend your option versus other students'; proposals
Company XYZ needs a program to build a database concerning employee information.
To allay these concerns and to improve the ease and efficiency with which the apartment managers conduct their daily business, the company is proposing the development of a centralized database that the managers can use to track the daily business..
Show the FDs in this resulting relation. Is it in 2NF Is it in 3NF? Why or why not? (State assumptions, if you make any.)
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