02 Feb Write a brief paper describing
Unit 4 Assignment 1
Querying a Database Using Joins and Subqueries
Part 1
Perform a backup of the database using mysqldump before continuing. Do not overwrite the previous backup. There is no need to restore from the backup unless you run into problems in the following parts of the assignment.
Part 2
Add additional tables to the volunteer database to track hours worked per week by the volunteers and amounts of funds raised. Remember to design the tables with appropriate primary and foreign keys so you can relate these records to volunteers in the Person table. Each table should include a column to hold a date to identify the start of the week. Insert data into these tables (at least 10 rows). Submit SQL statements with this assignment. Include a screen shot showing the successful insertion of the rows into the tables.
Part 3
Create 3 queries using SQL JOINs involving two or more tables to display information for all volunteers. Submit the text of the queries and results, in addition to screen shots when you turn in the assignment.
Part 4
Write a brief paper describing the tables added in Part 2. Describe the structure of the tables including the column types and the keys (primary and foreign). Discuss the role of the keys in a SQL JOIN like the ones you have written for Part 3 of this assignment.
Resources
Querying a Database Using Joins and Subqueries Scoring Guide.
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteEdu. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
Do you need help with this question?
Get assignment help from WriteEdu.com Paper Writing Website and forget about your problems.
WriteEdu provides custom & cheap essay writing 100% original, plagiarism free essays, assignments & dissertations.
With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.
Chat with us today! We are always waiting to answer all your questions.