owlSignal / SQL-Query

This project highlights my ability to write complex SQL queries for retrieving and manipulating data from databases. The queries demonstrate my expertise in database management, data analysis, and the use of SQL for various cybersecurity tasks.

BOOKSTORE Database Structure and SQL Queries

Database Schema

Tables and Columns

1. Author

   • authorid
   • authorname

2. Customer

   • customerid
   • customername
   • address
   • city

3. Employees

   • employeeid
   • firstname
   • lastname
   • employeerole

4. Item

   • itemid
   • booktitle
   • authorid

5. Orderinfo

   • id
   • itemid
   • customerid

6. Supplier

   • supplierid
   • suppliername
   • city

SQL Queries

Table of Contents

1. INNER JOIN
2. LEFT JOIN
3. RIGHT JOIN
4. SELF JOIN and CROSS JOIN
5. UNION and UNION ALL