DAD_220_Project_One

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Southern New Hampshire University *

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220

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Mechanical Engineering

Date

Feb 20, 2024

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docx

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DAD 220 Database Documentation Template Complete these steps as you work through the directions for Project One. Replace the bracketed text with your screenshots and brief explanations of the work they capture. Each screenshot and its explanation should be sized to approximately one quarter of the page, with the description written below the screenshot. Follow these rules for each of the prompts and questions below. Review the example document located in the Project One Supporting Materials for assistance. Step One: Create a Database 1. Navigate to your online integrated development environment (IDE). List and record the SQL commands that you used to complete this step here: The commands are as follows:  chmod +x change_perm.sh  ./change_perm.sh  Mysql  Show databases I followed the initializing instructions, then pulled up available databases. 2. Create a database schema called QuantigrationUpdates. List out the database name. Provide the SQL commands you ran against MySQL to successfully complete this in your answer:  Create database QuantigrationUpdates;  Show databases;

I created the database QuantigrationUpdates, then listed the available databases to confirm. 3. Using the entity relationship diagram (ERD) as a reference, create the following tables with the appropriate attributes and keys: a. A table named Customers in the QuantigrationUpdates database, as defined on the project ERD. Provide the SQL commands you ran against MySQL to complete this successfully in your answer:  Use QuantigrationUpdates;  Create TABLE Customers (CustomerID INT,  FirstName VARCHAR(25),  LastName VARCHAR(25),  Street VARCHAR(50),  City VARCHAR(50),  State VARCHAR(25),  ZipCode INT,  Telephone VARCHAR(15),  PRIMARY KEY (CustomerID));  Describe Customers;

I created the table Customers using the fields from the ERD. I then used the command DESCRIBE Customers to confirm the table was correct. b. A table named Orders in the QuantigrationUpdates database, as defined on the project ERD. Provide the SQL commands you ran against MySQL to complete this successfully in your answer:  CREATE TABLE Orders (OrderID INT,  CustomerID INT,  SKU VARCHAR(20),  Description VARCHAR(50),  PRIMARY KEY (CustomerID));  DESCRIBE Orders;

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I created the table Orders based on the data in the ERD. I then used the describe command to confirm the table Orders was correct. c. A table named RMA in the QuantigrationUpdates database, as defined on the project ERD. Provide the SQL commands you ran against MySQL to complete this successfully in your answer:  CREATE TABLE RMA (RMAID INT,  OrderID INT,  Reason VARCHAR(25),  Status VARCHAR(50),  Step VARCHAR(15),  PRIMARY KEY (RMAID));  DESCRIBE RMA;

I created the table RMA according to the ERD. I then used the describe command to confirm the table RMA was correct. Step Two: Load and Query the Data 1. Import the data from each file into tables.  Use the QuantigrationUpdates database, the three tables you created, and the three CSV files preloaded into Codio.  Use the import utility of your database program to load the data from each file into the table of the same name. You will perform this step three times, once for each table. 2. Write basic queries against imported tables to organize and analyze targeted data. For each query, replace the bracketed text with a screenshot of the query and its output. You should also include a 1- to 3-sentence description of the output.  Write an SQL query that returns the count of orders for customers located only in the city of Framingham, Massachusetts. i. How many records were returned? There were 505 records returned for customers in the city of Framingham, MA. I used the SELECT query and the * character in COUNT to command all records would be returned. INNER JOIN was used to join the Orders and Customers tables in the field CustomerID. This allowed 505 records returned of orders from customers in Framingham, MA.

 Write an SQL query to select all of the Customers located in the state of Massachusetts. i. Use a WHERE clause to limit the number of records in the Customers table to only those who are located in Massachusetts. ii. Record an answer to the following question: How many records were returned? There were 982 records returned for customers residing in Massachusetts. I used the SELECT query with the * character in COUNT to call all records. A WHERE clause was used to request only records returned from Customers table for those residing in Massachusetts only.  Write a SQL query to insert four new records into the Orders and Customers tables using the following data: Customers Table CustomerID FirstName LastName StreetAddress City State ZipCode Telephone 100004 Luke Skywalker 15 Maiden Lane New York NY 10222 212-555-1234 100005 Winston Smith 123 Sycamore Street Greensbor o NC 27401 919-555-6623 100006 MaryAnne Jenkins 1 Coconut Way Jupiter FL 33458 321-555-8907 100007 Janet Williams 55 Redondo Beach Blvd Torrence CA 90501 310-555-5678 I used the INSERT command into the table Customers to add the four new entries. Orders Table

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OrderID CustomerID SKU Description 1204305 100004 ADV-24-10C Advanced Switch 10GigE Copper 24 port 1204306 100005 ADV-48-10F Advanced Switch 10 GigE Copper/Fiber 44 port copper 4 port fiber 1204307 100006 ENT-24-10F Enterprise Switch 10GigE SFP+ 24 Port 1204308 100007 ENT-48-10F Enterprise Switch 10GigE SFP+ 48 port I used the INSERT command into the table Orders to add the four new entries.  In the Customers table, perform a query to count all records where the city is Woonsocket, Rhode Island. i. How many records are in the Customers table where the field “city” equals “Woonsocket”? There were 7 records returned for the number of customers residing in Woonsocket. I used the SELECT query with the * character to pull all records from the Customers table. A WHERE clause was used to pull all records from the city Woonsocket. There were 7 records returned for customers in Woonsocket.  In the RMA database, update a customer’s records. i. Write an SQL statement to select the current fields of status and step for the record in the RMA table with an orderid value of “5175.” 1. What are the current status and step? The current status is Pending and step is Defective.

I used the SELECT query Status from the RMA table. A WHERE clause specified OrderID 5175. ii. Write an SQL statement to update the status and step for the OrderID , 5175 to status = “Complete” and step = “Credit Customer Account.” 1. What are the updated status and step values for this record? I used the SET command to change Status and Step to Complete and Credit Customer Account, respectively. A WHERE clause was used to specify only OrderID 5175.  Delete RMA records. i. Write an SQL statement to delete all records with a reason of “Rejected.” 1. How many records were deleted? I used the DELETE command from table RMA. A WHERE clause was used to specify field Reason with Rejected to be deleted. I do not know why zero rows were affected. In the Module 4 activity I used the same commands and 596 rows were affected. 3. Update your existing tables from “Customer” to “Collaborator” using SQL based on this change in requirements. Provide the SQL commands you ran against MySQL to complete this successfully in your answer: a. Rename all instances of “Customer” to “Collaborator.”  ALTER TABLE Customers RENAME Collaborators;  Show tables;

I used the ALTER TABLE command to rename Customers to Collaborators. I used SHOW TABLES to confirm the new table name.  ALTER TABLE Collaborators CHANGE CustomerID CollaboratorID INT;  DESCRIBE Collaborators; I used the ALTER TABLE command to change the CustomerID field name to CollaboratorID.  ALTER TABLE Orders CHANGE CustomerID CollaboratorID INT;  DESCRIBE Orders;

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I used the ALTER TABLE command to change the CustomerID field name to CollaboratorID. 4. Create an output file of the required query results. Write an SQL statement to list the contents of the Orders table and send the output to a file that has a .csv extension.  SELECT * FROM Orders  INTO OUTFILE ‘/home/codio/workspace/Salter_Order_QuantigrationUpdates.csv’  FIELDS terminated BY ‘,’  LINES terminated BY ‘\n’; I used the SELECT query and * character to return all records from the Orders table. I selected the pathway and name of the .csv outfile.