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What are triggers used for, and why are they important in database systems?
Provide an example of a situation where a trigger would be appropriate.
What would the implementation of this trigger look like?
REQUIREMENTS: YoTown Records has decided to store information about musicians who perform on its albums (as well as other company data) in a database
Compute the closure sets of R - find all non-trivial dependencies and what are the candidate keys of R?
Compute the predetermined overhead rate under the current method, and determine the unit product cost of each product for the current year.
Do you create an ordered file whose records are based on a primary key such as customer name and use a primary index on the attribute? Explain your reasons.
Explain the statement that relational algebra operators can be com-posed. Why is the ability to compose operators important?
The data dictionary serves as an important data management tool by? assigning attributes to the data, maintaining data in updated form.
You are to design and implement the ER model of assignment-1, including entities/associative entities, relationships and cardinalities, into a Microsoft Access database.
Write a script that provides all of the information in, and duplicates the formatting of, Oracle's SQL*Plus describe command. Additionally, the output should add the comments on the rows. Input: owner and table name. Output: columns for Name, Null..
First construct a Data Warehouse Bus Matrix to identify the company's business processes and any likely Data Marts and design the star schema for any Data Marts you have identified.
A vendor builds multiple types of tablet computers. Each hs a type identification number and a name. The key specifications for each type include amount of storage and display type.
questionethical and legal considerations in marketing intellectual property and product safetyprepare a paper in which
Large-scale database are available on several platforms. Among those are MySQL, SQL Server, and Oracle. Other than cost, why might an organization select MySQL over SQL Server or Oracle
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