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An information technology recruiting firm has been growing rapidly over the past few years. The number of clients over the past year has quadrupled, and the number of employees has doubled. As a result, the firm is moving to a new, larger office complex. When the company moves, it would like to update the data storage systems. It currently stores all of its records in manual files. What advice would you give the managers of this company? What would be the best storage system for their needs and why?
Be sure to include the following information:
Advice given to managersThe storage system that best fits the needs of the companyReasons why this is the best storage system.
Assume that data warehouse consists of three dimensions time, customer, and cell phone plan, and two measures number of calls and cell phone bill. Sketch a schema diagram for above data warehouse using star schema.
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Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
ISYS 224 Database Systems - Relational Database Design & Implementation
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Can Oracle have multiple group functions in the same SELECT list of query (i.e can we do a COUNT and AVG)? Let us assume we wanted to find lowest, highest, average.
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