SQL 101: Master the Language of Data, From Fundamentals to Advanced Techniques - Private lessons

SQL 101: Master the Language of Data, From Fundamentals to Advanced Techniques

From 13 $ /h

If you've ever looked at a database and thought, "Where do I even start?"—this course is for you. I'm going to teach you SQL from the ground up, no fluff, no jargon, just the real stuff you need to get confident writing queries that actually do something useful.

We'll start with the basics—how to pull data from a table—and build up to more advanced topics like joins, aggregations, subqueries, and even window functions. You’ll learn how to ask the right questions, write clean, readable queries, and solve real-world problems with data.

Location

Online from India

Age

Children (7-12 years old)

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Advanced

Duration

60 minutes

The class is taught in

English

Skills

Microsoft sql server

Availability of a typical week

(GMT -05:00)

Chicago

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Python 101: Master the Language of Programming, From Basics to Advanced Concepts

13 $ /h

In this course, you'll learn Python from the ground up, starting with the basics and progressing to more advanced concepts. You'll gain hands-on experience writing Python code, working with data structures, and using libraries to solve real-world problems. By the end of the course, you'll be confident in your ability to write Python programs, automate tasks, and tackle challenges in various domains.

Read more

I am an IT professional having a great passion towards teaching.
I have done Masters and bachelors in computer Application and programming. I completed Masters in 2007.

I believe that teaching is an art and a smart teacher should understand
how an individual students understand well. What is the best teaching approach that suits the individual teacher? I customise the teacing approach based on the student's need and this comes from years of experiece teaching varieties of students across different countries.

My teaching methodology is a gentle approach which 100% ensures the subject matter is understood to the student -
- Teach the subject matter
- Practice exercises based on subject matter
- Explain any doubts/queries the student may have
- And revise

Thanks

Microsoft Power-platform is a new emerging technology by Microsoft that is now widely adopted by huge companies and the average salary for working as a power-platform developer is around £35-60k a year. Unfortunately this skill is not widely taught in schools or university, that is why I intend on teaching you this skill in order for you breach that gap, and start your career off as a power platform expert.

So why not get ahead of your peers and signup for this chance to become a power-platform developer, and learn from an expert who has worked for major companies including the UK’s Ministry of Defence etc.

This course has 4 variations which are:
1.Introduction to Power BI which includes;
Data transformation
Data analysis
BI UI
Filtering & Slicing data
Data Relationships and Date time Dimensions
Bookmark functionality.

2.Introduction to PowerApps which includes
Model driven apps
Canvas app
API and Connections
Creating a usable application
Learning Dataverse

3. Introduction to PowerAutomate which includes
Automations to power-apps
Automations to emails
Automations to data source
Automation to accounts include twitter, gmail or YouTube
Secure automation procedures
Conditions and variables

4. Introduction to Virtual Agent which includes
Virtual Bot design
Policies and data library
Interactive Bots
Sequential protocols for Bots

Module 1: SQL Overview
Outlining SQL as the cornerstone of database activity
Applying the ANSI/ISO standards
Describing the fundamental building blocks: tables, columns, primary keys, and foreign keys

Module 2: Building the Database Schema
- Creating tables and columns
Building tables with CREATE TABLE
Modifying table structure with ALTER TABLE
Adding columns to an existing table
Removing tables with DROP TABLE

- Protecting data integrity with constraints
Guaranteeing uniqueness with primary key constraints
Enforcing integrity with foreign key constraints
Imposing business rules with check constraints

- Improving performance with indexes
Expediting data retrieval with indexes
Recommending guidelines for index creation

Module 3: Manipulating Data
- Modifying table contents
Adding table rows with INSERT
Changing row content with UPDATE
Removing rows with DELETE

- Applying transactions
Controlling transactions with COMMIT and ROLLBACK
Deploying BEGIN TRANSACTION in SQL Server

Module 4: Working with the SELECT Statement
- Writing Single Table queries
Retrieving data with SELECT
Specifying column expressions
Sorting the result with ORDER BY
Handling NULL values in expressions

- Restricting rows with the WHERE filter
Testing for equality or inequality
Applying wildcard characters
Avoiding NULL value pitfalls

Module 5: Querying Multiple Tables
- Applying the ANSI/ISO standard join syntax
Matching related rows with INNER JOIN
Including nonmatched rows with OUTER JOIN
Creating a Cartesian product with CROSS JOIN

- Combining results with set operators
Stacking results with UNION
Identifying matching rows with INTERSECT
Utilizing EXCEPT to find nonmatching rows

Module 6: Employing Functions in Data Retrieval
- Processing data with row functions
Conditional formatting with the CASE expression
Utilizing the CASE expression to simulate IF tests
Dealing with NULL values

- Performing analysis with aggregate functions
Summarizing data using SUM, AVG and COUNT
Finding the highest/lowest values with MAX and MIN
Defining the summary level with GROUP BY
Applying filter conditions with HAVING

Module 7: Constructing Nested Queries
- Applying subqueries in filter conditions
Creating correlated vs. noncorrelated subqueries
Testing the existence of rows

- Including subqueries in expressions
Placing subqueries in the column list
Creating complex expressions containing subqueries
Handling subqueries that return no rows

Module 8: Developing In-Line and Stored Views
- Breaking down complex problems
Selecting data from a query result set
Using subqueries in the FROM clause

- Creating views in a database
Building reusable code
Creating updateable vs. non-updateable views

Much of the world's raw data—from electronic medical records to customer transaction histories—lives in organized collections of tables called relational databases. Being able to wrangle and extract data from these databases using SQL is an essential skill within the data industry and in increasing demand.

In this two-hour introduction to SQL, you'll get to know the theory and the practice through bite-sized videos and interactive exercises where you can put your new-found skills to the test. SQL is an essential language for building and maintaining relational databases, which opens the door to a range of careers in the data industry and beyond. You’ll start this course by covering data organization, tables, and best practices for database construction.

The second half of this course looks at creating SQL queries for selecting data that you need from your database. You’ll have the chance to practice your querying skills before moving on to customizing and saving your results. PostgreSQL and SQL Server are two of the most popular SQL flavors. You’ll finish off this course by looking at the differences, benefits, and applications of each. By the end of the course you’ll have some hands-on experience in learning SQL and the grounding to start applying it on projects or continue your learning in a more specialized direction.

Relational Databases
Before writing any SQL queries, it’s important to understand the underlying data. In this chapter, we’ll discover the role of SQL in creating and querying relational databases. Using a database for a local library, we will explore database and table organization, data types and storage, and best practices for database construction.

Querying
Learn your first SQL keywords for selecting relevant data from database tables! After practicing querying skills in a database of books, you’ll customize query results using aliasing and save them as views so they can be shared. Finally, you’ll explore the differences between SQL flavors and databases such as PostgreSQL and SQL Server.

I'm a developer coach with over 10 years of experience in website and database development. Holding a professional license and several industry-recognized certifications, he is a MySQL expert and able to walk you through the most complex requests. As a coordinated and passionate website builder, I am able to share my knowledge and experience with over 100's of people to help achieve their development goals. Many renewable projects are experienced and able to deliver high quality results. If you are looking for a talented developer coach to help you with your MySQL demands, please feel free to contact me.”

Dive into the world of data visualization with Power BI. This course is perfect for those looking to create compelling and insightful reports and dashboards. Gain hands-on experience in transforming raw data into meaningful visualizations that drive informed decision-making.

My SQL Server class focuses on database management, covering the installation, configuration, and maintenance of SQL Server environments.
It includes writing SQL queries, optimizing performance, and ensuring data security.
Students learn to design, implement, and troubleshoot databases, gaining hands-on experience with SQL Server tools and features.

I specialize in administering and teaching Windows Server 2022 Administration Fundamentals to small, medium, and large enterprises. My goal is to keep trainees constantly challenged to learn how to set up and manage servers efficiently without overwhelming them. I cover topics such as Active Directory management, DNS and DHCP configuration, and Virtual Machine setup. After each lesson, I provide hands-on assignments to ensure full understanding and provide periodic reports to track trainees’ progress.

This class is for aspiring IT administrators who want to learn how to set up and manage Windows Server 2022 effectively. The focus is on learning how to set up servers, optimize their performance, and provision virtual infrastructure for enterprises. If you are a beginner, don’t worry, all concepts are explained clearly from the beginning to ensure complete understanding.
It is preferable for each student to have a laptop with the ability to run programs such as VmWare.

C# is the programming language approved by Microsoft, the leading software company in the world.
In the course, you will learn how to create complete programs such as managing a restaurant, company, law firm, point of sale, real estate management programs, clinics, institutes, universities, etc., so that you can sell and market software on the Internet and gain a strong career to support you in your professional life.

Are you ready to master C# programming or SQL Server database design? With over 20 years of experience in software development, I provide tailored lessons designed to make learning practical, engaging, and applicable to real-world scenarios.

For C#, I cover programming fundamentals, object-oriented principles, and best practices for writing clean, efficient code. If you’re interested in SQL Server, I specialise in database design, creating and managing tables, building and optimising views, and writing stored procedures to handle complex operations.

Each lesson is customised to suit your needs, whether you’re a beginner or looking to enhance your skills. With hands-on exercises, clear explanations, and personalised feedback, I’ll help you gain the confidence and expertise to succeed.

Choose your focus—C# programming or SQL Server—and let’s start working toward your goals today!

Learning technical subjects will greatly contribute to enhancing your mental abilities and raising your level of scientific competence, whether you are learning them at school or university. In addition, by understanding technical subjects well, you will be able to keep up with the modernity of the future and become one of the components of the digital world and makers of technical solutions.

I specialize in tutoring SQL for beginners and students preparing for careers in data analytics, business analytics, database management. My goal is to help students build a strong foundation in SQL, writing efficient queries and managing databases with confidence. Also to keep students challenged, but not overwhelmed. I assign homework after every lesson and provide periodic progress reports. If you've never written a SQL query before, don’t worry—I break down every concept step by step, making it easy to follow and apply.

if you've ever looked at a database and thought, "Where do I even start?"—this course is for you. I'm going to teach you SQL from the ground up, no fluff, no jargon, just the real stuff you need to get confident writing queries that actually do something useful. We'll start with the basics—how to pull data from a table—and build up to more advanced topics like joins, aggregations, subqueries, and even window functions. You’ll learn how to ask the right questions, write clean, readable queries, and solve real-world problems with data.

Data analytics is an essential skill for students, professionals and organisations that want to make informed decisions using data. This practical class will help you develop the skills required to clean, analyse, visualise and interpret data using widely used analytical tools.

Depending on your learning objectives, lessons may cover Microsoft Excel, Power Query, Power BI, SQL or Python. You can learn how to clean and transform datasets, write formulas and queries, develop data models, calculate meaningful performance indicators and design interactive dashboards.

Each lesson is customised according to your current level and goals. I use clear explanations, guided exercises, realistic datasets and practical projects to help you understand both the technical steps and the business meaning behind the results.

This class is suitable for beginners, university students, job seekers and working professionals. By the end of the programme, you should be able to analyse data more confidently, create professional reports and apply your skills to academic or workplace projects.

Are you studying DAM, DAW, ASIR, Computer Engineering or other technological training and need help with SQL or databases?

The classes are online, one-on-one, and fully tailored to your syllabus, level, and goals. We can start from scratch, prepare you for a subject or exam, help you with practice problems, work on a project, or delve deeper into more advanced topics.

We can work on content such as:

* database design and modeling;
* entity-relationship diagrams;
* relational model;
* standardization;
* creation and modification of tables;
* SQL queries;
* JOIN and relationships between tables;
* subqueries;
* aggregation and grouping functions;
* views;
* procedures and functions;
* triggers;
* transactions;
* PL/SQL;
* query optimization and debugging;
* Connecting databases to applications.

We can work with **MySQL, MariaDB, PostgreSQL, Oracle** and other database management systems depending on the technology you use in your subject or project.

My goal is not for you to memorize queries. We will work to help you learn to analyze what information you need, which tables are involved, how to relate them, and how to build the solution step by step.

We can also work on your own exercises, practices, databases or projects, as well as prepare exams and assignments for vocational training or university.

In addition to the classes, you will have access to our educational platform with its own documentation, examples, exercises, practices and other resources to continue working between sessions.

I am an IT professional having a great passion towards teaching.
I have done Masters and bachelors in computer Application and programming. I completed Masters in 2007.

I believe that teaching is an art and a smart teacher should understand
how an individual students understand well. What is the best teaching approach that suits the individual teacher? I customise the teacing approach based on the student's need and this comes from years of experiece teaching varieties of students across different countries.

My teaching methodology is a gentle approach which 100% ensures the subject matter is understood to the student -
- Teach the subject matter
- Practice exercises based on subject matter
- Explain any doubts/queries the student may have
- And revise

Thanks

Microsoft Power-platform is a new emerging technology by Microsoft that is now widely adopted by huge companies and the average salary for working as a power-platform developer is around £35-60k a year. Unfortunately this skill is not widely taught in schools or university, that is why I intend on teaching you this skill in order for you breach that gap, and start your career off as a power platform expert.

So why not get ahead of your peers and signup for this chance to become a power-platform developer, and learn from an expert who has worked for major companies including the UK’s Ministry of Defence etc.

This course has 4 variations which are:
1.Introduction to Power BI which includes;
Data transformation
Data analysis
BI UI
Filtering & Slicing data
Data Relationships and Date time Dimensions
Bookmark functionality.

2.Introduction to PowerApps which includes
Model driven apps
Canvas app
API and Connections
Creating a usable application
Learning Dataverse

3. Introduction to PowerAutomate which includes
Automations to power-apps
Automations to emails
Automations to data source
Automation to accounts include twitter, gmail or YouTube
Secure automation procedures
Conditions and variables

4. Introduction to Virtual Agent which includes
Virtual Bot design
Policies and data library
Interactive Bots
Sequential protocols for Bots

Module 1: SQL Overview
Outlining SQL as the cornerstone of database activity
Applying the ANSI/ISO standards
Describing the fundamental building blocks: tables, columns, primary keys, and foreign keys

Module 2: Building the Database Schema
- Creating tables and columns
Building tables with CREATE TABLE
Modifying table structure with ALTER TABLE
Adding columns to an existing table
Removing tables with DROP TABLE

- Protecting data integrity with constraints
Guaranteeing uniqueness with primary key constraints
Enforcing integrity with foreign key constraints
Imposing business rules with check constraints

- Improving performance with indexes
Expediting data retrieval with indexes
Recommending guidelines for index creation

Module 3: Manipulating Data
- Modifying table contents
Adding table rows with INSERT
Changing row content with UPDATE
Removing rows with DELETE

- Applying transactions
Controlling transactions with COMMIT and ROLLBACK
Deploying BEGIN TRANSACTION in SQL Server

Module 4: Working with the SELECT Statement
- Writing Single Table queries
Retrieving data with SELECT
Specifying column expressions
Sorting the result with ORDER BY
Handling NULL values in expressions

- Restricting rows with the WHERE filter
Testing for equality or inequality
Applying wildcard characters
Avoiding NULL value pitfalls

Module 5: Querying Multiple Tables
- Applying the ANSI/ISO standard join syntax
Matching related rows with INNER JOIN
Including nonmatched rows with OUTER JOIN
Creating a Cartesian product with CROSS JOIN

- Combining results with set operators
Stacking results with UNION
Identifying matching rows with INTERSECT
Utilizing EXCEPT to find nonmatching rows

Module 6: Employing Functions in Data Retrieval
- Processing data with row functions
Conditional formatting with the CASE expression
Utilizing the CASE expression to simulate IF tests
Dealing with NULL values

- Performing analysis with aggregate functions
Summarizing data using SUM, AVG and COUNT
Finding the highest/lowest values with MAX and MIN
Defining the summary level with GROUP BY
Applying filter conditions with HAVING

Module 7: Constructing Nested Queries
- Applying subqueries in filter conditions
Creating correlated vs. noncorrelated subqueries
Testing the existence of rows

- Including subqueries in expressions
Placing subqueries in the column list
Creating complex expressions containing subqueries
Handling subqueries that return no rows

Module 8: Developing In-Line and Stored Views
- Breaking down complex problems
Selecting data from a query result set
Using subqueries in the FROM clause

- Creating views in a database
Building reusable code
Creating updateable vs. non-updateable views

Much of the world's raw data—from electronic medical records to customer transaction histories—lives in organized collections of tables called relational databases. Being able to wrangle and extract data from these databases using SQL is an essential skill within the data industry and in increasing demand.

In this two-hour introduction to SQL, you'll get to know the theory and the practice through bite-sized videos and interactive exercises where you can put your new-found skills to the test. SQL is an essential language for building and maintaining relational databases, which opens the door to a range of careers in the data industry and beyond. You’ll start this course by covering data organization, tables, and best practices for database construction.

The second half of this course looks at creating SQL queries for selecting data that you need from your database. You’ll have the chance to practice your querying skills before moving on to customizing and saving your results. PostgreSQL and SQL Server are two of the most popular SQL flavors. You’ll finish off this course by looking at the differences, benefits, and applications of each. By the end of the course you’ll have some hands-on experience in learning SQL and the grounding to start applying it on projects or continue your learning in a more specialized direction.

Relational Databases
Before writing any SQL queries, it’s important to understand the underlying data. In this chapter, we’ll discover the role of SQL in creating and querying relational databases. Using a database for a local library, we will explore database and table organization, data types and storage, and best practices for database construction.

Querying
Learn your first SQL keywords for selecting relevant data from database tables! After practicing querying skills in a database of books, you’ll customize query results using aliasing and save them as views so they can be shared. Finally, you’ll explore the differences between SQL flavors and databases such as PostgreSQL and SQL Server.

I'm a developer coach with over 10 years of experience in website and database development. Holding a professional license and several industry-recognized certifications, he is a MySQL expert and able to walk you through the most complex requests. As a coordinated and passionate website builder, I am able to share my knowledge and experience with over 100's of people to help achieve their development goals. Many renewable projects are experienced and able to deliver high quality results. If you are looking for a talented developer coach to help you with your MySQL demands, please feel free to contact me.”

Dive into the world of data visualization with Power BI. This course is perfect for those looking to create compelling and insightful reports and dashboards. Gain hands-on experience in transforming raw data into meaningful visualizations that drive informed decision-making.

My SQL Server class focuses on database management, covering the installation, configuration, and maintenance of SQL Server environments.
It includes writing SQL queries, optimizing performance, and ensuring data security.
Students learn to design, implement, and troubleshoot databases, gaining hands-on experience with SQL Server tools and features.

I specialize in administering and teaching Windows Server 2022 Administration Fundamentals to small, medium, and large enterprises. My goal is to keep trainees constantly challenged to learn how to set up and manage servers efficiently without overwhelming them. I cover topics such as Active Directory management, DNS and DHCP configuration, and Virtual Machine setup. After each lesson, I provide hands-on assignments to ensure full understanding and provide periodic reports to track trainees’ progress.

This class is for aspiring IT administrators who want to learn how to set up and manage Windows Server 2022 effectively. The focus is on learning how to set up servers, optimize their performance, and provision virtual infrastructure for enterprises. If you are a beginner, don’t worry, all concepts are explained clearly from the beginning to ensure complete understanding.
It is preferable for each student to have a laptop with the ability to run programs such as VmWare.

C# is the programming language approved by Microsoft, the leading software company in the world.
In the course, you will learn how to create complete programs such as managing a restaurant, company, law firm, point of sale, real estate management programs, clinics, institutes, universities, etc., so that you can sell and market software on the Internet and gain a strong career to support you in your professional life.

Are you ready to master C# programming or SQL Server database design? With over 20 years of experience in software development, I provide tailored lessons designed to make learning practical, engaging, and applicable to real-world scenarios.

For C#, I cover programming fundamentals, object-oriented principles, and best practices for writing clean, efficient code. If you’re interested in SQL Server, I specialise in database design, creating and managing tables, building and optimising views, and writing stored procedures to handle complex operations.

Each lesson is customised to suit your needs, whether you’re a beginner or looking to enhance your skills. With hands-on exercises, clear explanations, and personalised feedback, I’ll help you gain the confidence and expertise to succeed.

Choose your focus—C# programming or SQL Server—and let’s start working toward your goals today!

Learning technical subjects will greatly contribute to enhancing your mental abilities and raising your level of scientific competence, whether you are learning them at school or university. In addition, by understanding technical subjects well, you will be able to keep up with the modernity of the future and become one of the components of the digital world and makers of technical solutions.

I specialize in tutoring SQL for beginners and students preparing for careers in data analytics, business analytics, database management. My goal is to help students build a strong foundation in SQL, writing efficient queries and managing databases with confidence. Also to keep students challenged, but not overwhelmed. I assign homework after every lesson and provide periodic progress reports. If you've never written a SQL query before, don’t worry—I break down every concept step by step, making it easy to follow and apply.

if you've ever looked at a database and thought, "Where do I even start?"—this course is for you. I'm going to teach you SQL from the ground up, no fluff, no jargon, just the real stuff you need to get confident writing queries that actually do something useful. We'll start with the basics—how to pull data from a table—and build up to more advanced topics like joins, aggregations, subqueries, and even window functions. You’ll learn how to ask the right questions, write clean, readable queries, and solve real-world problems with data.

Data analytics is an essential skill for students, professionals and organisations that want to make informed decisions using data. This practical class will help you develop the skills required to clean, analyse, visualise and interpret data using widely used analytical tools.

Depending on your learning objectives, lessons may cover Microsoft Excel, Power Query, Power BI, SQL or Python. You can learn how to clean and transform datasets, write formulas and queries, develop data models, calculate meaningful performance indicators and design interactive dashboards.

Each lesson is customised according to your current level and goals. I use clear explanations, guided exercises, realistic datasets and practical projects to help you understand both the technical steps and the business meaning behind the results.

This class is suitable for beginners, university students, job seekers and working professionals. By the end of the programme, you should be able to analyse data more confidently, create professional reports and apply your skills to academic or workplace projects.

Are you studying DAM, DAW, ASIR, Computer Engineering or other technological training and need help with SQL or databases?

The classes are online, one-on-one, and fully tailored to your syllabus, level, and goals. We can start from scratch, prepare you for a subject or exam, help you with practice problems, work on a project, or delve deeper into more advanced topics.

We can work on content such as:

* database design and modeling;
* entity-relationship diagrams;
* relational model;
* standardization;
* creation and modification of tables;
* SQL queries;
* JOIN and relationships between tables;
* subqueries;
* aggregation and grouping functions;
* views;
* procedures and functions;
* triggers;
* transactions;
* PL/SQL;
* query optimization and debugging;
* Connecting databases to applications.

We can work with **MySQL, MariaDB, PostgreSQL, Oracle** and other database management systems depending on the technology you use in your subject or project.

My goal is not for you to memorize queries. We will work to help you learn to analyze what information you need, which tables are involved, how to relate them, and how to build the solution step by step.

We can also work on your own exercises, practices, databases or projects, as well as prepare exams and assignments for vocational training or university.

In addition to the classes, you will have access to our educational platform with its own documentation, examples, exercises, practices and other resources to continue working between sessions.

Good-fit Instructor Guarantee

Contact Ephraim