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Write the command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order. Show columns last_name, hire_date, phone_number, and dept_code in your results. Also, change the name of dept_code column to department_code.
Knowledge and Data Warehousing
You have a file which contains credit card records. Each record contains field for the card number, expiration date, and name of card holder. Explain what primary problem you try to solve is.
University XYZ needs a database that keeps track of students, what classes they taken and the grades for each of the classes.
Explain how you will visually represent the data for the sales of the individual stores and for the time period shown. You want to show the change in sales for each store over time for the past three years.
Write a query that performs an inner join of the grade, student, and grade_type tables using ANSI SQL 99 syntax (JOIN ON).
Write a program that models an employee. An employee has an employee number, a name, an address, and a hire date. A name consists of a first name and a last name.
Assignment 5: Logical Design, Part II, Explain the problems associated with data redundancy as it pertains to effectively using information for reporting and analysis.
The data dictionary serves as an important data management tool by? assigning attributes to the data, maintaining data in updated form.
Implement a database of courses and students for a school.
Show all the data in each of the four tables. Do not show foreign key columns. Write names and e-mail addresses for all customers who have had a stove repair that cost more than $50.
Explain the information-gathering techniques and design methods you would suggest to use for project. Recognize the key factors that help ensure the information required for the project.
A database at a college is required to support the following requirements. Complete the information-level design for this set of requirements. Determine any constraints you need that are not stated in the problem.
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