Write and run SQL statements - What is the max balance

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Reference no: EM131826586

Assignment - Query and update databases using SQL

This assignment requires you to use SQLite to complete the tasks listed below.

Task - Write and run SQL statements to complete the following tasks

Part A - DML

1. Locate the record in the vendor table that does not have a value for the attribute V_STATE

2. Find the customers whose balance is greater than $300 but less than $400.

3. Show the names of the customers for whom we have invoices.

4. What is the max balance?

5. Show the CUS_CODE of the customers for whom we DO NOT have invoices.

6. Show the names of the customers for whom we DO NOT have invoices.

7. Find out how many times a customer generated an invoice - make sure the counted column heading reads "Invoices_generated".

8. List the names of the customers and how many times a customer generated an invoice - make sure the counted column heading reads "N_Of_Invoices".

Part B - DDL

1. Add a new row/record to the 'customer' table to include your actual student_ID in the CUS_CODE, your last name as the CUS_LNAME' and your firstname as CUS FNAME. Add any other details of your choice in all the other fields.

2. Add a new attribute (field) credit_history VARCHAR(6) to the customer table.

3. Update credit history for customer '10011' to 'Bad'.

4. Delete the employee Leighla Genkazi from the EMP table.

5. Add a new attribute called 'email_address' to 'emp' table with data type and length 'VARCHAR(20).

You are required to submit:

1. The SQL statements for each query, which should be copied from your SQLite3 Command Line and pasted into your submission file. If you type .echo on at the SQLite3 Command Line, SQLite will output your SQL statement with the results of the query making it easy to copy and paste both.

2. The screenshots of the results of the SQL statements which are to be copied from your SQLite3 Command Line and pasted into your submission file immediately after you execute the SQL query. If you used an output file please submit only the output file.

Reference no: EM131826586

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Reviews

len1826586

1/22/2018 5:23:34 AM

NOTES - This assignment requires you to use SQLite to complete the tasks listed below. Student can also use SQL Workbench or another software (if they are familiar) to complete the tasks. Typing the SQL statements or the results is NOT acceptable. Instructions for using SQLite: From Resources under Main Menu in Interact 2 go to Assignment 5 Folder, Copy sqlite3.exe and cmd.exe files from the Assignment 5 Folder into a folder in your machine\ Copy a5.txt from the Assignment 5 Folder into the folder in your machine where your SQLite file is located. From the SQLite Command Prompt execute the a5.txt script. To do this, at the SQLite Command Line type .read a5.txt [to create the tables you will use to answer this assignment's questions]. At the SQLite Command Line type .headers on and At the SQLite Command Line type .mode column.

len1826586

1/22/2018 5:23:20 AM

This assessment aligns with the following subject outcomes: be able to critically analyse and modify an existing database design to meet new business requirements. SQL syntax returns all attributes that meet the business requirement from the tables that hold the data and applies the correct restrictions to retrieve the required information. Requirements – Either submit your assignment as a PDF or a Word document. Don’t use any other file formats. Please include your student ID, name and subject code in your submission.

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