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Troubleshooting Your First Low-performing T-SQL Query

Jared Westover
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...
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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 back is paramount in improving performance. Along the way, you will learn the internals of how SQL Server stores and retrieves data. Next, you will discover tools built into SQL Server Management Studio. These tools 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.
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Good to know

Know what's good
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Course targets T-SQL queries and introduces foundational concepts for performance improvement
Builds a foundation for understanding how SQL Server stores and retrieves data
Introduces SQL Server Management Studio tools for exploring SQL Server internals
Emphasizes practical application of acquired skills to improve query performance

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Career center

Learners who complete Troubleshooting Your First Low-performing T-SQL Query will develop knowledge and skills that may be useful to these careers:
Database Administrator
A Database Administrator can manage, monitor, and optimize the performance of databases. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn foundational knowledge of improving query performance. This knowledge can help inform the decisions you make as a Database Administrator.
Data Analyst
A Data Analyst can collect, clean, and analyze data to identify trends and patterns. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn the internals of how SQL Server stores and retrieves data. This knowledge can help you better understand the data you are working with as a Data Analyst.
Business Intelligence Analyst
A Business Intelligence Analyst can use data to make informed decisions about a business. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn tools built into SQL Server Management Studio. These tools can help you explore the SQL Server internals which can aid you as a Business Intelligence Analyst.
Software Developer
A Software Developer can design, develop, and maintain software applications. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn several low performing queries utilizing your newly acquired skills to improve performance. This knowledge can help you improve the performance of the software applications you develop.
Data Scientist
A Data Scientist can use data to solve complex problems. In the course Troubleshooting Your First Low-performing T-SQL Query, you will gain foundational knowledge of improving query performance. This knowledge can help you improve the performance of the data science models you develop.
Database Architect
A Database Architect can design and implement database systems. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn how to explore SQL Server internals. This knowledge can help you design and implement better performing database systems as a Database Architect.
Systems Analyst
A Systems Analyst can design and implement computer systems. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn tools built into SQL Server Management Studio. These tools can help you implement better performing computer systems.
Technical Writer
A Technical Writer can write technical documentation. In the course Troubleshooting Your First Low-performing T-SQL Query, you will gain foundational knowledge of improving query performance. This knowledge can help you write better documentation for software that uses SQL Server.
Computer Programmer
A Computer Programmer can write code to solve problems. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn several low performing queries utilizing your newly acquired skills to improve performance. This knowledge can help you write better code as a Computer Programmer.
Network Engineer
A Network Engineer can design and implement computer networks. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn tools built into SQL Server Management Studio. These tools can aid in designing and implementing better performing computer networks.
Help Desk Technician
A Help Desk Technician can provide technical support to users. In the course Troubleshooting Your First Low-performing T-SQL Query, you will gain foundational knowledge of improving query performance. This knowledge can help you better assist users with SQL Server related issues.
Computer Systems Analyst
A Computer Systems Analyst can analyze and design computer systems. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn the internals of how SQL Server stores and retrieves data. This knowledge can help you better analyze and design computer systems.
Software Engineer
A Software Engineer can design and develop software applications. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn several low performing queries utilizing your newly acquired skills to improve performance. This knowledge can help you develop better performing software applications.
IT Consultant
An IT Consultant can provide IT advice and support to businesses. In the course Troubleshooting Your First Low-performing T-SQL Query, you will gain foundational knowledge of improving query performance. This knowledge can help you better advise businesses on how to improve the performance of their SQL Server systems.
Information Technology Specialist
An Information Technology Specialist can provide technical support and maintenance for computer systems. In the course Troubleshooting Your First Low-performing T-SQL Query, you will learn tools built into SQL Server Management Studio. These tools can help you better maintain computer systems that use SQL Server.

Reading list

We've selected five books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Troubleshooting Your First Low-performing T-SQL Query.
Covers advanced techniques for optimizing query performance in SQL Server. Useful as a reference tool for in-depth performance tuning.
A practical guide to troubleshooting performance problems in SQL Server. Useful as a reference tool for resolving specific performance issues.
Provides a comprehensive overview of SQL Server execution plans. Valuable as a reference tool for understanding how SQL Server processes queries.

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