45 SQL Tuning Techniques for Immediate Use in Practice

Oracle SQL Tuning Complete Mastery: 45 Practical Examples of SQL Tuning for Immediate Use in Real Work

Hello, everyone!

Thank you sincerely for choosing the "45 SQL Tuning Examples for Immediate Use in Practice" course.

This course is based on SQL tuning cases I've directly experienced in the field, and is composed of 45 core examples that have been refined and perfected through multiple lectures. I've carefully selected only the essential content that beginners learning SQL tuning must know.

Why is SQL tuning important?

In practice, we often see cases where a single SQL query slows down the entire system. Tasks that took 10 minutes can be reduced to 10 seconds after tuning, and situations where we were considering server expansion can be resolved by fixing just one SQL query.

Even with SQL that produces the same results, performance can differ by tens or hundreds of times depending on how you write it. This is precisely the power of SQL tuning. Before investing massive costs in hardware, if you can solve problems with SQL tuning alone, there's no method more efficient than that.

Furthermore, SQL tuning skills go beyond simply making queries faster - they represent expertise in understanding the internal workings of databases and optimizing entire systems. Professionals with these capabilities are always welcomed in the field.

This course is especially recommended for the following people.

Highly recommended for these people

✔️ Those who know basic SQL but are new to performance improvement
✔️ Those who want to properly learn how to read execution plans
✔️ Those preparing to transition from developer to DBA
✔️ Those struggling with slow queries in their current work
✔️ Those who want to pioneer a career as an SQL tuner

Actually, I only learned that there was a technology called SQL tuning when I started working in the field. Looking back now, I regret not knowing this technology even a little bit earlier. That's why I prepared this course with the hope that you could learn this important technology faster and more systematically than I did. This technology is absolutely essential wherever databases are used. It will be especially useful for those preparing for careers as DBAs, DB engineers, or SQL tuners.

I have systematically organized the lecture examples and theory in GitBook. You can follow along step by step by watching the GitBook materials and videos together.

Starting from Oracle installation and environment configuration, learn through 45 tuning examples step by step, and I hope SQL tuning techniques will give wings to your SQL skills.

All examples and theories from this course are systematically organized in GitBook.

• https://s-personal-organization-15.gitbook.io/sql-45/

• The lecture examples and theory are systematically organized in GitBook

• You can learn step by step by watching the GitBook materials and videos together

• From Oracle installation and environment setup to 45 tuning examples with complete coverage

  
  

🚀 Here's how you'll change after taking the course

✅ You can immediately identify problem areas when looking at slow SQL
✅ You can determine performance improvement directions just by looking at execution plans
✅ You get a sense of when and how to utilize indexes
✅ You can understand performance differences based on join methods and optimize them
✅ You can confidently perform SQL tuning in real-world situations

You can view the employment status of those who have taken Oracle courses that include SQL tuning from me and have found employment at the following link.

https://cafe.daum.net/oracleoracle/SDMs/441

Start right now!
SQL tuning skills completed through 45 examples - this is your opportunity to upgrade your career to the next level.

After taking this course, you will gain these abilities

When you move on to advanced units, you'll also gain the following tuning abilities.

Important Notes Before Enrollment