Troubleshooting Your First Low-performing T-SQL Query
Are your SQL queries running slower by the day? Does writing new queries make you worry? If so, this course is for you! You will discover valuable tools built into SQL Management Studio to aid in reducing query execution times.
What you'll learn
Perhaps you’re starting out or have been plagued by low-performing T-SQL queries for years. Maybe you have been appointed the new SQL expert, but your query tuning skills are lacking. In this course, Troubleshooting Your First Low-performing T-SQL Query, you will gain foundational knowledge of improving query performance.
First, you will hear what vital questions can be asked about a query, understanding the intent of what data your query is returning, which is paramount in improving performance. Then, you will learn the internals of how SQL Server stores and retrieves data.
Next, you will discover tools built into SQL Server Management Studio, which are vital for exploring the SQL Server internals.
Finally, you will explore several low-performing queries, utilizing your newly acquired skills to improve performance.
When you’re finished with this course, you will have the skills and knowledge necessary to consistently improve low-performing queries.
Table of contents
- Introduction 2m
- Query Tuning Diminishing Returns 3m
- Calculate Page Reads 3m
- Demo: STATISTICS IO 5m
- Exploring an Execution Plan 2m
- Important Plan Operators 2m
- Demo: Reading an Execution Plan 4m
- Demo: Important Plan Operators 4m
- Dynamic Management Objects 3m
- Demo: Missing Indexes & Top Queries 4m
- Summary 1m