$17.00 USD

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Ultimate SQL How-To Guide ($17 USD):

A PDF guide that explains how to perform 20 different common tasks in SQL, with guides and SQL scripts.

SQL Performance Quick Guide

 

In this guide, you'll learn 14 different tactics on how you can improve the performance of your SQL queries, such as:

  • removing DISTINCT and finding the real problem
  • Using EXISTS instead of IN
  • Changing UNION to CASE and simplifying your query
  • Changing correlated subqueries to joins

And many more!

Each tactic includes an explanation, a sample SQL query that shows how to apply the concept, and links to articles/videos/documentation for more details.

The techniques provided can be applied to Oracle, SQL Server, MySQL, and Postgres.

 

30-Day Money Back Guarantee: If you're not satisfied with this guide, I'll refund your entire order.

What People Are Saying:

Your explanations are so clear and concise that you don’t need to go on and on and on as I have heard others do.

Donna M, Database Star customer