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1. Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to store Employee_Name, Employee_Address, and Employee_BirthDate in the database. The company also has several projects. Each project is identified by a Project_Id. The company wants to store Project_Name and Project_StartDate in the database. Each employee must be assigned to one or more projects, or may not be assigned to a project. A project must have at least one employee assigned and may have any number of employees assigned. An employee's billing rate may vary by project, and the company wishes to record the applicable billing rate (Billing_Rate) for each employee when assigned to a particular project.
Create a document that will compare the installation process between Oracle 11g and Oracle 10g. Your submission document can be in the form of a MS Word document or a MS Excel spreadsheet. As long as you can adequately present your findings, the f..
Write a SELECT statement which returns three columns: VendorName, InvoiceCount, and InvoiceSum. InvoiceCount is the count of the number of invoices, and InvoiceSum is the sum of the InvoiceTotal column.
consider the following database that contains information about people vacation locations and when those people visited
Create the tables and relationships from the database design discussed in Lab 2. Add at least five (5) records into each table (Note: You must determine the field values)
our boss approached you to identify a solution for a performance issue and system outages that have been experienced on
Mark the following words in the document as index entries: behavior (four instances), favorable (five instances), and impression (eight instances).
Describe a scenario in which discretionary access controls are required to enforce a security policy that cannot be enforced using onlymandatory controls.
Don't forget to underline key attributes for entity sets and include arrowheads indicating the multiplicity of relationships
Implement a transaction-level consistency in relational database management system
Create a context level DFD. You should take your DFD to your tutorial for feedback before starting on the ER.
Focus on quantitative data. Based on the statistical data gleaned from the readings what qualitative conclusions would you draw about the efficacy of the many aspects of differentiated parent support?
What a query execution plan? Discuss the reasons for converting SQL queries into relational algebra queries before optimization is done
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