Derrick W.
1 SQL lesson












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Los Angeles, CA
As a Data Engineer, I eat, breathe, and sleep data. I have been working with SQL Databases for several years. So whether you need help with a window function or just a simple SELECT query I am happy to help.
As a Data Engineer, I eat, breathe, and sleep data. I have been working with SQL Databases for several years. So whether you need help with a window function or just a simple SELECT query I am happy to help.
I was struggling a lot just understanding the concepts and I felt like I was drowning with coding. Sina was able to communicate things to me in a digestible way that made it easier for me to understand how functions work and now p... - Tye, 2 lessons with Sina

Los Angeles, CA
I am a self taught software developer who prides himself on adapting quickly to industry trends. I currently work at a major e-commerce retailer as an AWS/React engineer. In the past I have worked contracts at Facebook/Meta, Viking Cruises, and...
I am a self taught software developer who prides himself on adapting quickly to industry trends. I currently work at a major e-commerce retailer as an AWS/React engineer. In the past I have worked contracts at Facebook/Meta, Viking Cruises, and...

Santa Monica, CA
"Investment in knowledge always pays the best interest." - Benjamin Franklin Hi, my name is Marine. I have been tutoring for over six years. During these 6 years I have had students from different backgrounds and age groups. I started as a tutor...
"Investment in knowledge always pays the best interest." - Benjamin Franklin Hi, my name is Marine. I have been tutoring for over six years. During these 6 years I have had students from different backgrounds and age groups. I started as a tutor...
Marine knows a lot about the industry and what interviewers are looking for when posing certain questions. Her communication is clear and her style is quite intuitive. - Lori

Many employers assume that every programmer know some SQL, and as a web developer or a Java developer, you'll probably find that a lack of SQL understanding will be a hinderance. SQL is a very deep language onto itself,...
Many employers assume that every programmer know some SQL, and as a web developer or a Java developer, you'll probably find that a lack of SQL understanding will be a hinderance. SQL is a very deep language onto itself,...
Steven helped me with understanding some fundamental approaches to disentangling complex SQL problems. It really helped calm me down and give me some tools to work in SQL - Steven, 2 lessons with Steven

I have a Bachelor of Science degree in Computer & Information Science, have worked in the tech industry as a software engineer for over 6 years in a variety of programming languages, and have over a year of experience teaching computer programming...
I have a Bachelor of Science degree in Computer & Information Science, have worked in the tech industry as a software engineer for over 6 years in a variety of programming languages, and have over a year of experience teaching computer programming...
Samantha is helping me get back into coding after a 3-year hiatus. She is knowledgeable, patient, and an excellent communicator! I would recommend her to anyone looking to expand or build upon their skills. Samantha also proved t... - Amy, 17 lessons with Samantha

From logical and physical data modeling to writing and tuning SQL queries for performance, I can bring relevant, real-world experience to the learning environment, using many of today's popular relational databases and tools, including...
From logical and physical data modeling to writing and tuning SQL queries for performance, I can bring relevant, real-world experience to the learning environment, using many of today's popular relational databases and tools, including...
John helped me through several SQL questions, and made sure that I understood the reasoning behind every function that we ran together. He patiently encouraged me and I left the session with a much better handle of SQL and a great... - Carly, 2 lessons with John

-Creating tables, queries, joins, subqueries and formulas. -Stored procedures and data connections. Also I can give you an intro to SQL course if you have no experience.
-Creating tables, queries, joins, subqueries and formulas. -Stored procedures and data connections. Also I can give you an intro to SQL course if you have no experience.
Recently a contract job ended and I was looking for a SQL boot camp training refresher. Over the past 4-5 weeks, Cal has provided excellent SQL training and valuable homework assignments. So much so that I ended up having this ... - Paul, 105 lessons with Cal

My path into SQL started while learning React.js and working to develop a full-stack skill set. I had specific full-stack applications I wanted to build, and that goal led me to learning how to set up and use phpMyAdmin to manage databases....
My path into SQL started while learning React.js and working to develop a full-stack skill set. I had specific full-stack applications I wanted to build, and that goal led me to learning how to set up and use phpMyAdmin to manage databases....
Zary has been one of the best decisions I made while preparing for my Security+ certification. From the start, it was clear that he has a deep understanding of not only computers and cybersecurity, but also how the CompTIA exams a... - Stephen, 14 lessons with Zary

MBA. MS Computer Science. Over 20 years working with and teaching databases and SQL at the university and for my own small business. Have completed many SQL and database projects in finance, health care and other industries....
MBA. MS Computer Science. Over 20 years working with and teaching databases and SQL at the university and for my own small business. Have completed many SQL and database projects in finance, health care and other industries....
Helped me create SQL queries and explained everything very clearly. He was also very patient and stayed with me for extra time to help me fully understand the material. - Luke, 2 lessons with Dan

I have over 15 years industry experience in software development, I have been a programmer, lead developer, architect and project lead on many, many projects, including SQL. I specialize in Java, C++, Javascript, Angular, OpnGL and now...
I have over 15 years industry experience in software development, I have been a programmer, lead developer, architect and project lead on many, many projects, including SQL. I specialize in Java, C++, Javascript, Angular, OpnGL and now...
I just started with Jeffrey. He clearly has strong python and general IT skills. He is also a great teacher, explaining each step clearly until I understand. He listened well to all my requirements and worked them into the lesson.... - David

I have written SQL in many database languages or concepts like Oracle, MySQL, Aurora, Postgres, SQL Server, ORM, JPA, and MongoDB. Using the most complicated features of SQL to write subqueries, grouping, procedures,...
I have written SQL in many database languages or concepts like Oracle, MySQL, Aurora, Postgres, SQL Server, ORM, JPA, and MongoDB. Using the most complicated features of SQL to write subqueries, grouping, procedures,...
Akeme helped me work through a SQL table creation problem in Android. He is very knowledgeable and helped me think through the debug process. I learned a lot through our session! - Aaron

I have over 30 years of experience with SQL including advanced queries, joins, sub-queries, views, stored procedures, stored functions. Connectivity as part of full stack applicaitons including JavaScript, Python, Java, PHP, C#. My...
I have over 30 years of experience with SQL including advanced queries, joins, sub-queries, views, stored procedures, stored functions. Connectivity as part of full stack applicaitons including JavaScript, Python, Java, PHP, C#. My...
I needed urgent help with an important SQL script assignment; Robert responded quickly on Wyzant and provided excellent help in the meeting. Would have a lesson with him again! - Andrew

SELECTs with all join types, subqueries, Window functions, bind variables, and SQL UNNEST. I also teach stored procedures & triggers. I have Oracle, SQL Server, MySQL, PostgreSQL, and SQLite databases. I've installed and...
SELECTs with all join types, subqueries, Window functions, bind variables, and SQL UNNEST. I also teach stored procedures & triggers. I have Oracle, SQL Server, MySQL, PostgreSQL, and SQLite databases. I've installed and...
David taught me about primary and foreign keys in SQL. He pulled up a database he already had, was ready to teach me to code immediately, and explained everything he did. It was money well spent, and I will continue to learn more ... - Consuela, 2 lessons with David

I use SQL professionally to extract, clean, and analyze structured data for reporting and operational decision-making. I teach foundational and intermediate topics including SELECT statements, JOINs, GROUP BY, subqueries, filtering with...
I use SQL professionally to extract, clean, and analyze structured data for reporting and operational decision-making. I teach foundational and intermediate topics including SELECT statements, JOINs, GROUP BY, subqueries, filtering with...
We had an introductory session and Zabdi was very patient with setting up SQL on my computer. Looking forward to working with him going forward on SQL concepts. Very knowledgable and kind. - Samah, 2 lessons with Zabdi

Former Database Administrator on SQL Server. Certified in Oracle with a few years experience on Oracle reporting. Learned on MySQL and can help on any SQL platform for students or professionals.
Former Database Administrator on SQL Server. Certified in Oracle with a few years experience on Oracle reporting. Learned on MySQL and can help on any SQL platform for students or professionals.
I am a SQL novice and had to complete an assignment that included some challenging queries. Ryan was patient and did an excellent job helping me conceptualize what SQL syntax actually means and how it is used to pull data under sp... - Adriane

My background is primarily MySQL and PostgreSQL, but the SQL principles I teach are platform-agnostic and apply to SQL Server and other systems. I emphasize understanding and reasoning over memorization.
My background is primarily MySQL and PostgreSQL, but the SQL principles I teach are platform-agnostic and apply to SQL Server and other systems. I emphasize understanding and reasoning over memorization.

I am a graduate of the College of Marin with a degree in computer science, which has equipped me with a solid foundation in various programming languages, including PHP, Laravel, MySQL, Python, JavaScript, Node, ExpressJS, VueJS and ReactJS. My...
I am a graduate of the College of Marin with a degree in computer science, which has equipped me with a solid foundation in various programming languages, including PHP, Laravel, MySQL, Python, JavaScript, Node, ExpressJS, VueJS and ReactJS. My...
I've been learning SQL through Umair on Wyzant and he takes what's foreign and makes it user friendly. I had to take a couple of weeks off from lessons, and he made sure to patiently re-review items we had already gone through, h... - Nisha, 12 lessons with Umair

Hi, I'm Justin, a professional web developer with 6+ years of experience building and optimizing Shopify and WordPress sites, plus SaaS products, for real businesses. I currently work as a CMS developer, so my teaching is grounded in day-to-day...
Hi, I'm Justin, a professional web developer with 6+ years of experience building and optimizing Shopify and WordPress sites, plus SaaS products, for real businesses. I currently work as a CMS developer, so my teaching is grounded in day-to-day...

With more than 30 years of experience in IT, I bring a strong background in applied mathematics, science, and technology, along with extensive experience making complex subjects easier to understand. I have taught students and adults ranging in...
With more than 30 years of experience in IT, I bring a strong background in applied mathematics, science, and technology, along with extensive experience making complex subjects easier to understand. I have taught students and adults ranging in...
Armin is VERY well versed in the subject matter he's teaching (Access & SQL) and he is able to effectively communicate the subject matter. Additionally, he points out how to arrange data and apply steps in very organized and simpl... - Michael, 10 lessons with Armin

(GPA 3.9) and M.S. (GPA 4.0) in the field. My work focuses on programming, data analysis, and problem-solving using tools such as Python, SQL, and data visualization techniques. I am particularly passionate about helping students not just...
(GPA 3.9) and M.S. (GPA 4.0) in the field. My work focuses on programming, data analysis, and problem-solving using tools such as Python, SQL, and data visualization techniques. I am particularly passionate about helping students not just...

I have designed and written dozens of websites over the years integrating HTML, PHP, JavaScript, SQL databases, e-commerce, etc. I've also created custom sites using online resources.
I have designed and written dozens of websites over the years integrating HTML, PHP, JavaScript, SQL databases, e-commerce, etc. I've also created custom sites using online resources.
Working on my project had become quite a challenge, but Seth truly came to the rescue! His guidance not only clarified numerous confusions I encountered but also shed light on aspects I hadn't even realized were unclear. Thanks to... - Patrick

...of America. My expertise lies in cleaning, modeling, and visualizing complex datasets using tools such as advanced Excel, SQL, and Python-based NLP pipelines to identify operational bottlenecks and project risks. I specialize in teaching students ...
...of America. My expertise lies in cleaning, modeling, and visualizing complex datasets using tools such as advanced Excel, SQL, and Python-based NLP pipelines to identify operational bottlenecks and project risks. I specialize in teaching students ...

Hello! I have been a paid full-stack developer since 1997, and LOVE helping others to learn and grow. I specialize in TypeScript/JavaScript, React, React Native, Electron, Redux, jQuery, HTML, CSS, PHP, MySQL, MongoDB, MERN Stack, LAMP Stack,...
Hello! I have been a paid full-stack developer since 1997, and LOVE helping others to learn and grow. I specialize in TypeScript/JavaScript, React, React Native, Electron, Redux, jQuery, HTML, CSS, PHP, MySQL, MongoDB, MERN Stack, LAMP Stack,...
I have been taking lesson from various tutors here in Wyzant for a while, in React, Node, and AWS. To me, Matt's lessons are the best. I feel I get all my money's worth. Matt does not waste time, it's easy to see how much experien... - Karen, 60 lessons with Matt

Hi, my name is Daniel! I have an extensive background in teaching students and helping them to succeed across a variety of subjects. I graduated with a 4.00 GPA from the University of Maryland, College Park with a dual degree in accounting and...
Hi, my name is Daniel! I have an extensive background in teaching students and helping them to succeed across a variety of subjects. I graduated with a 4.00 GPA from the University of Maryland, College Park with a dual degree in accounting and...
Daniel has helped me now with two different subjects; Accounting & Stats. He is extremely knowledgable and very helpful. I have recommended him to classmates who are needing extra help as well. I highly recommend hiring Daniel for... - Ryan, 22 lessons with Daniel

I am a former college professor who left academia to work on open source privacy software and a sustainable tiny home project in Detroit. I've been a software engineer at Etsy in NYC, Amazon and Microsoft Research in Seattle, and have worked on...
I am a former college professor who left academia to work on open source privacy software and a sustainable tiny home project in Detroit. I've been a software engineer at Etsy in NYC, Amazon and Microsoft Research in Seattle, and have worked on...
1 SQL lesson
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On this page, Wyzant offers SQL tutoring in El Segundo and the surrounding Los Angeles area. Whether you’re just starting out or working to improve your database skills, connecting with a local or online tutor can make learning easier and more effective.
SQL learning involves understanding how to store, retrieve, and manage data efficiently using structured queries. A tutor can guide you through concepts like joins, indexing, data normalization, or advanced query techniques, tailored to your skill level and goals.
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