SQL and PostgreSQL for Beginners: Become an SQL Expert from Udemy

What's inside

Learning objectives

Master relational database fundamentals
Build a relational database from scratch
Use sql to perform data analysis
Perform complex sql queries using joins and subqueries

Understand database concepts such as database relationships
Confident putting sql and postgresql on your resume
Use conditional statements and functions in sql and postgresql
Practice your skills with multiple challenges throughout the course

Master relational database fundamentals
Build a relational database from scratch
Use sql to perform data analysis
Perform complex sql queries using joins and subqueries
Understand database concepts such as database relationships
Confident putting sql and postgresql on your resume
Use conditional statements and functions in sql and postgresql
Practice your skills with multiple challenges throughout the course

Syllabus

This section is an introduction to the course - SQL and PostgreSQL for Beginners - with a few notes on the course.

An Introduction to the SQL and PostgreSQL Course

An overview of the SQL and PostgreSQL Course Curriculum

A Few Notes on this Course

This section is an introduction to SQL and PostgreSQL. By the end of the section you will know what SQL, databases and PostgreSQL are and have PostgreSQL installed and ready for the rest of the course

In this video you will learn the definition of a database and look at an example database.

We will learn what a relational database is, what a relational database management system is and also what SQL is and what it is used for.

In this video you will learn how to install and setup PostgreSQL for Mac.

In this video you will learn how to install and setup PostgreSQL for Windows.

We will go through Data Definition Language and create a database from scratch. By the end of this section you will be able to create, alter and delete tables from a PostgreSQL database using SQL.

An introduction to this section on Data Definition Language.

This video explains the structure of tables within relational databases.

This video explains the different data types that can be stored in databases.

In this video you will learn about the Primary Key and Foreign Key concepts and how they are used in databases.

In this video you will learn about Unique, Not Null and Check Constraints and how they are used in Relational Databases.

In this video you will learn how to create tables in SQL and PostgreSQL.

In this video you will go through creating the second table in the database.

In this video you will learn how to create tables that contain foreign keys in SQL and PostgreSQL.

In this video we will create the movie_revenues table as part of our database.

In this video you will learn what a junction table is and how to create them in SQL and PostgreSQL.

In this video you will learn how to modify a table by adding a new column using the alter command in SQL and PostgreSQL.

In this video you will learn how to modify a table by changing a columns data type using the alter command in SQL and PostgreSQL.

In this video you will learn how to delete tables from a relational database using SQL and PostgreSQL.

This is a challenge exercise on what you have learned in the Data Definition Language section of the course.

This is a solutions video for the Data Definition Language challenge.

This video is a summary of what you have learned in this section of the course on Data Definition Language.

In this section we will be inserting data into our movie database. By the end of this section you will know how to insert, update and delete data from a database using SQL.

This is an introduction video to the Data Manipulation Language Section of the course.

In this video you will learn how to insert data into a table in SQL and PostgreSQL using INSERT INTO.

In this video you will learn how to update pre-existing data in a table in SQL and PostgreSQL.

In this video you will learn how to delete data from a table in SQL and PostgreSQL.

In this video we will go through inserting data into our movie data database.

This is a Data Manipulation Language challenge and exercise video.

In this video we will go through the solutions to the Data Manipulation Language challenge.

This video is a summary of what you have learned in the Data Manipulation Language section of the course.

By the end of this section you will know how to retrieve data from tables using SQL select queries. You will also be able to use where clauses and order your data and so much more.

This video is an introduction to retrieving data from a table in SQL and PostgreSQL.

In this video you will learn how to use the SELECT query to extract data from tables in PostgreSQL.

In this video you will learn how to use WHERE clauses in PostgreSQL to filter results based on row values.

This video explains logical operators in SQL and PostgreSQL.

Challenge 1: Select Queries

Solution 1: Select Queries

In this video you will learn how to use the IN and NOT IN operators in PostgreSQL to filter your extractions by multiple row values.

In this video you will learn how to use the LIKE operator in PostgreSQL to search for rows containing a specified pattern.

In this video you will learn how to use the BETWEEN operator in PostgreSQL to extract results for rows between two values. This is particularly useful for dates.

Challenge 2: Select Queries

Solution 2: Select Queries

In this video you will learn how to ORDER your result sets alphabetically and numerically as well as by date in PostgreSQL.

In this video you will learn how to LIMIT the number of results in your extraction as well as how to use an OFFSET in PostgreSQL.

In this video we will go through how to use FETCH in PostgreSQL.

In this video you will learn how to remove duplicate values from your result sets in PostgreSQL.

Challenge 3: Select Queries

Solution 3: Select Queries

In this video we will explain what NULL values are in SQL and how to handle them in your results set.

In this video you will learn how to set a column name alias in PostgreSQL. This will help to make your result set more readable.

In this video we will go through concatenation in SQL and PostgreSQL.

Challenge 4: Select Queries

Solution 4: Select Queries

Section Summary

By the end of this section you will know how to use SQL aggregate functions and how to group your data by table columns.

This is an introduction video to aggregate function and grouping data in SQL and PostgreSQL.

In this video you will learn what aggregate function are in SQL.

In this video you will learn how to use the COUNT aggregate function in SQL and PostgreSQL.

In this video you will learn how to use the SUM aggregate function in SQL and PostgreSQL.

In this video you will learn how to use the MIN and MAX aggregate functions in SQL and PostgreSQL.

In this video you will learn how to use the AVG aggregate function in SQL and PostgreSQL.

This is a aggregate functions challenge video.

This is the solutions walkthrough for the aggregate functions challenges.

In this video you will learn how group data in SQL and PostgreSQL.

In this video you will learn how to use the HAVING clause when grouping data and using aggregate functions in SQL and PostgreSQL.

Challenge 2: Aggregate Functions

Solution 2: Aggregate Functions

In this video you will learn how to use mathematical operators in SQL and PostgreSQL.

This section concentrates on database relationships, which is what makes relational databases such as PostgreSQL so powerful. You will learn how to utilize the three types of database relationships.

This is an introduction video to relational database relationships.

This video explains what database relationships are and how they are used with relational databases.

In this video you will learn about the one-to-one relationship.

In this video you will learn about one-to-many relationships.

In this video you will learn about many-to-many relationships.

(Optional) Challenge: Database Relationships

Solution: Database Relationships

By the end of the section you will know how to join tables in SQL to retrieve data from multiple tables using inner, left, right and full joins. You will also know how to perform union SQL statements.

This is an introduction video for the SQL joins section of the course.

In this video we will learn what SQL joins are and the different types of joins.

In this video we will learn how to use INNER JOINS in SQL and PostgreSQL.

Challenge 1: Joins

Solution 1: Joins

In this video we will learn how to use LEFT joins in SQL and PostgreSQL.

In this video we will learn how to use RIGHT joins in SQL and PostgreSQL.

In this video we will learn how to use FULL joins in SQL and PostgreSQL

Challenge 2: Joins

Solutions 2: Joins

In this video we will learn how to join more than two tables together in SQL and PostgreSQL.

Challenge 3: Joins

Solution 3: Joins

In this video we will learn what the union operator is and how to use it in SQL and PostgreSQL.

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Teaches a database querying language that is highly relevant in the industry

Provides highly relevant case studies for a database querying language

Provides a great foundation for working with databases and a database querying language

Provides a solid beginner-friendly introduction to a database querying language

Taught by a great instructor who is an expert on the subject of databases and SQL

Recommended for students who wish to enhance their job prospects in data analysis

Reviews summary

Declarative data mastery

Learners say this course is largely positive. It's well-received for its clear instruction, practical exercises, and easy-to-digest summaries that cover foundational SQL and PostgreSQL skills. Students who are new to SQL or PostgreSQL may especially benefit from the step-by-step approach and engaging challenges. The course is appreciated for its organized structure and thorough explanations, even for more experienced learners looking for a refresher.

The course is well-organized, with a logical progression of topics building on each other.

"The content was well organized so that you aren't getting too much in one video."

"The course is very clear, well structured, i.e. you build on your previous knowledge as you go further."

"This is my first time installing PostgreSQL and my instructor shows step by step and I just installed successfully. I am so excited and so thankful!"

The course provides thorough explanations of the concepts and topics covered.

"Jon was very clear with his lectures. It is really for beginners and I understood every section and I was determined to do the challenges given. Kudos!"

"Thank god someone has a postgresql video using pgadmin 4. You should advertise the use of pgadmin4, especially now since it is a recently large upgrade for postgres"

"The content was well organized so that you aren't getting too much in one video."

The course is suitable for beginners, providing a solid foundation in SQL and PostgreSQL.

"I'm doing front end so I just needed a pragmatic course. This one has really good content. I would recommend this to anyone who wants to learn PostgreSQL."

"This is my first time installing PostgreSQL and my instructor shows step by step and I just installed successfully. I am so excited and so thankful!"

"This course is highly recommended by my side as it is really for an absolute beginner and it helped my clear all my doubts and made my fundamentals strong."

The course provides clear instructions and examples, making it easy for learners to follow along and understand the concepts.

"Clear instruction and examples."

"Clear instructions and good to follow."

"The course is really awesome. And the concept are really explained very clearly."

The course includes engaging challenges and exercises that allow learners to practice and reinforce their understanding of the material.

"This course was really informative and easy to follow. The challenges also helped me to test my knowledge of the subjects."

"Concepts are crisp and clear. Assessments/challenges helped a lot to practice which gave me confidence on course. Thank you."

"The course is very interesting. the instructor explains everything very clear and very patiently. i'm very satisfied. thank you!"

The course could benefit from more real-world examples or use cases to illustrate the concepts.

"The course taught a great deal of the beginning concepts of SQL, from the course description I wasn't expecting to go as far as Joins and Unions. This is a very good beginner course."

"Amazing course very easy to learn have enjoyed exercises but a few topics i found missing indexes composite primary key designing databases although overall experience was really good ."

"Great course! Very informative, easy to follow, and the course challenges are a great addition to the learning experience! Would recommend this course for anyone wanting to learn SQL and PostgreSQL."

The course lacks coverage of some more advanced SQL or PostgreSQL topics.

"Up until the course about JOINs, the course was not very challenging."

"It teaches you how to work with the queries only if you can install the software- no install instructions for linux, takes a long time to figure out before you can perform the queries"

"I'm oracle dba. So i found a little bit slow for me. I'm expecting more admin tasks like managing sizing, table physical attributes, indexing, etc. But I think is good for PG beginners."

Some learners found the pace of the course to be slow or monotonous.

"The instructor’s voice was very clear and easy to understand."

"I feel like it is too simple even for beginners The instructor is nice, teaches step by step and repeats what he taught in the previous lessons."

"It goes forward with a logical phase. I just would like to know if I can use the newest postgreSQL version."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in SQL and PostgreSQL for Beginners: Become an SQL Expert with these activities:

Practice SQL Database Building Basics

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Refresh your understanding of the fundamental concepts of SQL database building, ensuring a solid foundation for this course.

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Review key concepts like tables, columns, and data types.
Practice creating and modifying simple database tables.
Test your understanding by inserting, updating, and deleting data.

Read 'SQL Cookbook' by Anthony DeBarros

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Supplement your learning with a practical guide, providing you with a collection of ready-to-use SQL recipes for various scenarios.

View Practical SQL, 2nd Edition on Amazon

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Read through the book's chapters, focusing on the topics most relevant to your learning goals.
Experiment with the provided SQL recipes and adapt them to your own projects.

SQL Study Group

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Engage with fellow learners in a study group setting, fostering collaboration and deepening your understanding.

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Join or form a study group with other course participants.
Meet regularly to discuss course topics, share knowledge, and work on exercises together.

Four other activities

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Show all seven activities

SQL Coding Challenges

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Refine your SQL coding skills by solving a series of challenging exercises, improving your problem-solving abilities.

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Find online coding platforms or resources that offer SQL challenges.
Attempt to solve the challenges independently, focusing on optimizing your queries.
Review your solutions against provided answers or community submissions.

Explore Advanced SQL Queries

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Enhance your SQL proficiency by delving into advanced query techniques, expanding your analytical capabilities.

Browse courses on SQL Joins

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Learn about different types of SQL joins and their applications.
Practice using aggregate functions for data summarization.
Master the use of subqueries to enhance query complexity.

Attend a SQL Workshop or Conference

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Dive deeper into SQL by attending an immersive workshop or conference, gaining insights from experts and expanding your knowledge.

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Research and identify upcoming SQL workshops or conferences.
Register and attend the event, actively participating in sessions and networking with other attendees.

Mentor Junior SQL Learners

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Reinforce your own understanding by sharing your knowledge with others, providing guidance and support to aspiring SQL learners.

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Identify opportunities to mentor junior learners, either through online forums, meetups, or local initiatives.
Provide guidance and support to mentees, answering their questions and helping them overcome challenges.

Career center

Learners who complete SQL and PostgreSQL for Beginners: Become an SQL Expert will develop knowledge and skills that may be useful to these careers:

SQL Developer

SQL Developers specialize in developing and maintaining SQL databases and applications. This course provides a comprehensive overview of SQL and PostgreSQL, including data definition, manipulation, and retrieval. Students will learn how to create and manage databases, write complex SQL queries, and use stored procedures and functions. They will also gain experience in developing and deploying SQL applications, ensuring that they are efficient, scalable, and secure. This knowledge will help them become proficient in SQL development, enabling them to build and maintain robust and scalable SQL databases and applications.

See salaries and explore the career path for SQL Developer

Database Architect

Database Architects design and implement database systems to meet the needs of businesses and organizations. This course provides a comprehensive overview of SQL and PostgreSQL, including data definition, manipulation, and retrieval. Students will learn how to create and manage databases, write complex SQL queries, and use stored procedures and functions. They will also gain experience in designing and implementing database systems, ensuring that they are efficient, scalable, and secure. This knowledge will help them become proficient in database architecture, enabling them to design and implement robust and scalable database systems.

See salaries and explore the career path for Database Architect

Database Administrator

Database Administrators are responsible for the maintenance, performance, and security of databases. This course provides a solid foundation in SQL, PostgreSQL, and database relationships, which are essential skills for managing and optimizing databases. Students will learn how to create, modify, and delete tables, as well as insert, update, and delete data. They will also gain experience in using advanced SQL queries and joins to extract data from multiple tables. This knowledge will help them become proficient in managing and administering databases, ensuring their reliability and performance.

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Data Warehouse Engineer

Data Warehouse Engineers design and implement data warehouses to store and manage large amounts of data. This course provides a strong foundation in SQL and PostgreSQL, key technologies for data warehousing. Students will learn how to create and manage databases, write complex SQL queries, and use data integration tools. They will also gain experience in designing and implementing data warehouses, ensuring that they are efficient, scalable, and secure. This knowledge will help them become proficient in data warehousing, enabling them to design and implement robust and scalable data warehouses.

See salaries and explore the career path for Data Warehouse Engineer

Data Engineer

Data Engineers design, build, and maintain data pipelines to move data between different systems and applications. This course provides a strong foundation in SQL and PostgreSQL, which are essential technologies for data engineering. Students will learn how to create and manage databases, write complex SQL queries, and use data integration tools. They will also gain experience in designing and implementing data pipelines, ensuring that data is processed and delivered in a timely and efficient manner. This knowledge will help them become proficient in data engineering, enabling them to build and maintain reliable and scalable data pipelines.

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ETL Developer

ETL (Extract, Transform, Load) Developers extract data from multiple sources, transform it into a consistent format, and load it into a data warehouse or other target system. This course provides a foundation in SQL and PostgreSQL, key technologies for ETL development. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in ETL development, enabling them to design and implement efficient and effective ETL processes.

See salaries and explore the career path for ETL Developer

Data Analyst

A Data Analyst collects, analyzes, and interprets large amounts of data to derive insights that can help businesses make informed decisions. This course helps students become proficient in SQL, a key tool for data analysis. By learning how to write complex queries and use aggregate functions, students can extract meaningful information from data and gain a better understanding of business trends and customer behavior. Additionally, the course's focus on database relationships will help students understand how data is organized and connected, making them more effective in analyzing and interpreting data.

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Business Intelligence Analyst

Business Intelligence Analysts use data to identify trends and patterns that can help businesses make better decisions. This course provides a strong foundation in SQL, a key tool for data analysis and business intelligence. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data visualization tools to present their findings in a clear and concise manner. This knowledge will help them become proficient in business intelligence analysis, enabling them to identify insights that can drive business growth and innovation.

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Data Governance Analyst

Data Governance Analysts develop and implement policies and procedures to ensure that data is managed in a consistent and compliant manner. This course provides a foundation in SQL and PostgreSQL, key technologies for data governance. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in data governance, enabling them to develop and implement effective data governance policies and procedures.

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Data Quality Analyst

Data Quality Analysts ensure that data is accurate, complete, and consistent. This course provides a foundation in SQL and PostgreSQL, key technologies for data quality analysis. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in data quality analysis, enabling them to identify and correct data quality issues.

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Data Scientist

Data Scientists use statistical and machine learning techniques to extract insights from data. This course provides a foundation in SQL, a key technology for data science. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data visualization tools to explore and analyze data. This knowledge will help them build a foundation in data science, enabling them to apply statistical and machine learning techniques to solve complex business problems.

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Software Engineer

Software Engineers design, develop, and maintain software applications. This course provides a foundation in SQL, a key technology for software development. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in software development, enabling them to develop and maintain robust and scalable software applications.

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Information Security Analyst

Information Security Analysts protect computer systems and networks from unauthorized access, use, disclosure, disruption, modification, or destruction. This course provides a foundation in SQL, a key technology for information security. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in information security, enabling them to protect computer systems and networks from threats.

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Systems Analyst

Systems Analysts design and implement computer systems to meet the needs of businesses and organizations. This course provides a foundation in SQL, a key technology for systems analysis. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in systems analysis, enabling them to design and implement efficient and effective computer systems.

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Web Developer

Web Developers design and develop websites and web applications. This course provides a foundation in SQL, a key technology for web development. Students will learn how to write complex queries and use aggregate functions to extract meaningful information from data. They will also gain experience in using data integration tools to integrate data from different sources. This knowledge will help them build a foundation in web development, enabling them to develop and maintain robust and scalable web applications.

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