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Using the Web, identify the chief information officer, chief information security officer, and systems administrator for your school. Which of these individuals represents the data owner? Data custodian?
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.
You need to develop new user named ASSOCDBA1 and new ROLE named JRDBA1 which can be used for assistant DBA. You wish the new role to contain DBA role that the SYSTEM user ha
you must have at least these entities region factory employee department training class. you should use the attributes
the development of complex algorithms that can mine mounds of data that have been collected from people and digital
What is file organization? what are file organization techniques.explain in detail? explain random file organization technique, multikey file organization technique?
Let R be a relation schema with a set F of FDs. Prove that the decomposition of R into R1 and R2 is lossless-join if and only if F+ contains R1 ∩ R2 → R1 or R1 ∩ R2 → R2.
How can replication help the performance of a distributed database and in what situations can replication hurt the performance of a distributed database?
Find one or more current articles (last six months) describing on aspect of database or enterprise systems. Summarize the article(s) and provide your own perspective, and then browse through the other student posts to learn about other related tec..
Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form.
Write the name(s) of employee(s) who works(work) on every project located in Houston. Write the name(s) of employee(s) who only works(work) on every project located in 'Houston.'
Convert the table to 3NF. Represent your answer in DBDL. (i.e. Give table name and fields. Underline the primary key. Draw an entity-relationship diagram showing all relationships.)
Provide what reports may be produced as a result of your database design.Based on the information you have researched, create a 2-3 page design document that includes a description of the database you would like to create as well as sample tables ..
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