$17.00 USD

Change payment method

Ultimate Guide to SQL Joins ($17 USD):

A comprehensive PDF guide to help you understand what a join is, why they are helpful, how to actually write a join, and many examples. 

Ultimate SQL How-To Guide

A PDF guide where you'll learn how to use SQL to perform 20 different common tasks, so you can make the most of SQL.

You'll learn how to:

  • Find and delete duplicate rows
  • Compare data between two tables or two query results
  • Generate running totals, subtotals
  • And many more!