sql for data analysis w3schools - Brave Search

Is the W3Schools SQL course worth paying for, or are there better options out there for learning SQL effectively?

reddit.com › r › dataanalysis › comments › 1kicv3c › is_the_w3schools_sql_course_worth_paying_for_or

W3schools has a pay option?? It used to be my goto for free training. You don’t need that SQL hosting to learn anything. Just go through the free tutorial. It doesn’t have advanced concepts. If you have a computer at home, you can always install MariaDB or MySQL to practice. Answer from Deleted User on reddit.com

w3schools.com › sql

String Functions: ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE LEFT LENGTH LOCATE LOWER LPAD LTRIM MID POSITION REPEAT REPLACE REVERSE RIGHT RPAD RTRIM SPACE STRCMP SUBSTR SUBSTRING SUBSTRING_INDEX TRIM UCASE UPPER Numeric Functions: ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES DIV EXP FLOOR GREATEST LEAST LN LOG LOG10 LOG2 MAX MIN MOD PI POW POWER RADIANS RAND ROUND SIGN SIN SQRT SUM TAN TRUNCATE Date Functions: ADDDATE ADDTIME CURDATE CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURTIME DATE DATEDIFF DATE_ADD DATE_FORMAT DA

w3schools.com › mysql › mysql_sql.asp

String Functions ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE LEFT LENGTH LOCATE LOWER LPAD LTRIM MID POSITION REPEAT REPLACE REVERSE RIGHT RPAD RTRIM SPACE STRCMP SUBSTR SUBSTRING SUBSTRING_INDEX TRIM UCASE UPPER Numeric Functions ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES DIV EXP FLOOR GREATEST LEAST LN LOG LOG10 LOG2 MAX MIN MOD PI POW POWER RADIANS RAND ROUND SIGN SIN SQRT SUM TAN TRUNCATE Date Functions ADDDATE ADDTIME CURDATE CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURTIME DATE DATEDIFF DATE_ADD DATE_FORMAT DATE_

Videos

SQL for Data Analysis Course - Introduction | Episode 1 - YouTube

September 16, 2024

Learn SQL as a beginner with W3schools|| Data Analysis and Science.

I learned SQL for data analytics in 15 days | From Scratch - YouTube

September 9, 2023

SQL - SELECT Statement - W3Schools.com - YouTube

SQL - Introduction - W3Schools.com - YouTube

SQL Tutorial - The Very Basics, Part 1 - W3 Schools - YouTube

People also ask

What is the learning experience like with Guided Projects?

You'll learn by doing through completing tasks in a split-screen environment directly in your browser. On the left side of the screen, you'll complete the task in your workspace. On the right side of the screen, you'll watch an instructor walk you through the project, step-by-step.

coursera.org › browse › data science › data analysis

Data Analysis with SQL: Inform a Business Decision

Is financial aid available?

Financial aid is not available for Guided Projects.

coursera.org › browse › data science › data analysis

Data Analysis with SQL: Inform a Business Decision

Can I complete this Guided Project right through my web browser, instead of installing special software?

Yes, everything you need to complete your Guided Project will be available in a cloud desktop that is available in your browser.

coursera.org › browse › data science › data analysis

Data Analysis with SQL: Inform a Business Decision

reddit.com › r/dataanalysis › is the w3schools sql course worth paying for, or are there better options out there for learning sql effectively?

r/dataanalysis on Reddit: Is the W3Schools SQL course worth paying for, or are there better options out there for learning SQL effectively?

May 9, 2025 -

I'm trying to build a strong foundation in SQL for data analytics and career purposes. I came across the W3Schools SQL course, which seems beginner-friendly and affordable. But before I invest in it, I want to know:

Is it detailed enough for practical, job-oriented skills?

Does it cover real-world projects or just basic syntax?

Are there better alternatives (like free or paid courses on Udemy, Coursera, etc.)?

I'd appreciate honest feedback from anyone who's taken it or has experience learning SQL through other platforms. I want something that can take me from beginner to confident user, ideally with some hands-on practice.

Thanks in advance!

W3schools has a pay option?? It used to be my goto for free training. You don’t need that SQL hosting to learn anything. Just go through the free tutorial. It doesn’t have advanced concepts. If you have a computer at home, you can always install MariaDB or MySQL to practice.

For hands on practice I always recommend SQL Zoo https://sqlzoo.net/wiki/SQL_Tutorial and SQL Bolt https://sqlbolt.com/lesson/select_queries_introduction

w3schools.com › bootcamp › bootcamp_python.php

W3Schools Data Analytics Bootcamp

SQL is a standard language for storing, manipulating and retrieving data in databases. NumPy is a Python library for using arrays in statistics and math. Pandas is a Python library for data analysis.

w3schools.com › SQL › sql_syllabus.asp

SQL Syllabus (Curriculum)

Business and Management: SQL supports reporting and data-driven decision making. Economics and Finance: Pulling raw data from databases. Financial data management, reporting, and risk analysis.

reddit.com › r/sql › is the w3schools sql course worth paying for, or are there better options out there for learning sql effectively?

r/SQL on Reddit: Is the W3Schools SQL course worth paying for, or are there better options out there for learning SQL effectively?

May 9, 2025 -

I'm trying to build a strong foundation in SQL for data analytics and career purposes. I came across the W3Schools SQL course, which seems beginner-friendly and affordable. But before I invest in it, I want to know:

Is it detailed enough for practical, job-oriented skills?

Does it cover real-world projects or just basic syntax?

Are there better alternatives (like free or paid courses on Udemy, Coursera, etc.)?

I'd appreciate honest feedback from anyone who's taken it or has experience learning SQL through other platforms. I want something that can take me from beginner to confident user, ideally with some hands-on practice.

Thanks in advance!

Currently doing the free course for W3schools, as was recommended to me on this sub reddit. It does a great job at walking you through and giving you tests & examples. I combine it with https://www.sql-practice.com/ and a sql textbook. The website gives you questions and a real database to try and query.

This is in the Wiki page for this subreddit: https://www.reddit.com/r/SQL/search/?q=learn&restrict_sr=1

coursera.org › browse › data science › data analysis

Data Analysis with SQL: Inform a Business Decision

Complete this Guided Project in under 2 hours. A database is an organized collection of data that has value to a business. The purpose of SQL is to extract ...

Rating: 4.2 - 12 votes

Find elsewhere

Google Bing Mojeek

w3schools.com › sql › sql_exercises.asp

String Functions: ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE LEFT LENGTH LOCATE LOWER LPAD LTRIM MID POSITION REPEAT REPLACE REVERSE RIGHT RPAD RTRIM SPACE STRCMP SUBSTR SUBSTRING SUBSTRING_INDEX TRIM UCASE UPPER Numeric Functions: ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES DIV EXP FLOOR GREATEST LEAST LN LOG LOG10 LOG2 MAX MIN MOD PI POW POWER RADIANS RAND ROUND SIGN SIN SQRT SUM TAN TRUNCATE Date Functions: ADDDATE ADDTIME CURDATE CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURTIME DATE DATEDIFF DATE_ADD DATE_FORMAT DA

campus.w3schools.com › collections › certification course catalog › sql certification course

SQL Course + Certificate | W3Schools — W3Schools.com

SQL Certification Course

Learn SQL and unlock the power of data. Master querying, filtering, and managing databases, then earn a recognized certificate. Exam included. Self-paced. Learn SQL and start working with data confidently. This course covers everything from basic queries to joins, filters, and database management - giving you one of the most in-demand skills across tech, business, and analytics. · Earn a recognized certificate - exam included, ready to add to your LinkedIn and resume · Query real databases - master the language behind every data-driven business · No experience required - structured for complet

Rating: 4.8

thoughtspot.com › sql-tutorial › introduction-to-sql

SQL for Data Analysis: Tutorial Introduction | ThoughtSpot

March 12, 2026 - This SQL Tutorial for Data Analysis is designed to help you answer questions with data and solve complex problems. Learn more!

w3schools.com › MySQL › default.asp

MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is known for being fast, reliable, scalable, and easy to use, and is ideal for both small and large applications. Start learning MySQL now » · With our online MySQL editor, you can edit the SQL statements, and click on a button to view the result.

w3schools.com › training › aws › data-analytics-fundamentals.php

Data Analytics Fundamentals

Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.

udacity.com › all programs › school of data science

SQL for Data Analysis | Udacity

Learn how to execute core SQL commands to define, select, manipulate, control access, aggregate, and join data and data tables. Understand when and how to use subqueries, several window functions, and partitions to complete complex tasks.

geeksforgeeks.org › data analysis › sql-data-analysis

SQL for Data Analysis - GeeksforGeeks

February 10, 2026 - Key topics include selecting columns, filtering records with WHERE clauses, using logical operators and sorting data with ORDER BY. Basic SQL queries are the foundation for data extraction and analysis

w3schools.com › datascience

Data Science Tutorial

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

campus.w3schools.com › collections › certification course catalog › data analytics certification course

Data Analytics Course + Certificate | W3Schools — W3Schools.com

Data Analytics Certification Course

Learn to collect, analyze, and interpret data using Python, SQL, Numpy, Pandas, and R. This course gives you the skills companies actually hire for - and the certificate to prove you have them. · Earn a recognized certificate - exam included, ready to add to your LinkedIn and resume · Make sense of real data - learn to find patterns, trends, and insights that drive decisions · No experience required - structured for complete beginners · Learn at your own pace - self-paced with no deadlines · Hero plan included - get one year of premium access to ad-free, challenges, practice tests and much mor

Price $230.00

w3schools.com › sql › sql_syntax.asp

String Functions: ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE LEFT LENGTH LOCATE LOWER LPAD LTRIM MID POSITION REPEAT REPLACE REVERSE RIGHT RPAD RTRIM SPACE STRCMP SUBSTR SUBSTRING SUBSTRING_INDEX TRIM UCASE UPPER Numeric Functions: ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES DIV EXP FLOOR GREATEST LEAST LN LOG LOG10 LOG2 MAX MIN MOD PI POW POWER RADIANS RAND ROUND SIGN SIN SQRT SUM TAN TRUNCATE Date Functions: ADDDATE ADDTIME CURDATE CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURTIME DATE DATEDIFF DATE_ADD DATE_FORMAT DA

reddit.com › r/learnsql › is w3 schools sql enough to get a job?

r/learnSQL on Reddit: Is W3 schools SQL enough to get a job?

August 11, 2022 -

I've just been given a job in data quality assurance but the pay is really bad and I want to move into a better position.

The data manager said that if I learn advanced excel and/or SQL then I would be elligible for better pay and a new role.

If I were to go through https://www.w3schools.com/sql/default.asp and complete all of the content, would that be sufficient to be considered for a job at most companies or is there much more beyond w3schools that would be required to study on a different platform? I know experience matters, but lets ignore that for the sake of the question. Would I know enough to be useful to them?

I would also like to know if there is a minimum amount of the content listed that would be sufficient to become considered useful, or if I need to know everything there because of how things interact with each other.

I don't know anything about SQL so it's difficult for me to know the path forward.

Thanks!

It's hard to tell, especially without knowing anything about the organisation at all but some kind of benchmark would be to see how well you can answer your way through DP-203 (or maybe DP-900, in your case?) questions. I suppose you could more or less ignore the Azure specific questions if you aren't going to use it but there are a bunch of good SQL questions sprinkled in there as well; https://www.examtopics.com/exams/microsoft/dp-203/view/ Edit: If you manage to get through DP-203 it'll definitely be enough for a lot of database related work tasks.

I think that learning the language (SQL) itself is almost useless (and will be an exercise in frustration) if you don't have a solid understanding of the theory of relational databases. Which of course you can learn by yourself, from a book or online, if you are clever and motivated which I assume you are. But it might be better to take a proper course in it. Is this something with which your employer can help? I would also like to know if there is a minimum amount of the content listed that would be sufficient to become considered useful, If I had to evaluate you for a junior position working with databases, I would ask you to normalise a heap of related data into (at least) 3NF, and draw an ERD from the DDL of an existing database. I would also ask you to explain in your own words what a tuple is, and how a JOIN in SQL results in a Cartesian product. Nothing too algebraic, you don't have to be a mathematician, but you'd have to at least be clear about the concepts. So if none of the above makes sense to you, time to study up ;-) And don't be intimidated because it can be a lot of fun actually.

w3schools.com › sql › sql_intro.asp

SQL Introduction

String Functions: ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE LEFT LENGTH LOCATE LOWER LPAD LTRIM MID POSITION REPEAT REPLACE REVERSE RIGHT RPAD RTRIM SPACE STRCMP SUBSTR SUBSTRING SUBSTRING_INDEX TRIM UCASE UPPER Numeric Functions: ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES DIV EXP FLOOR GREATEST LEAST LN LOG LOG10 LOG2 MAX MIN MOD PI POW POWER RADIANS RAND ROUND SIGN SIN SQRT SUM TAN TRUNCATE Date Functions: ADDDATE ADDTIME CURDATE CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURTIME DATE DATEDIFF DATE_ADD DATE_FORMAT DA

datalemur.com › sql-tutorial

Free SQL Tutorial for Data Analysts & Data Scientists

Analyze data, by category. ... Filter on groups with HAVING. ... Remove duplicates with DISTINCT. ... Do math with +, *, and %. ... Use ABS(), CEIL(), FLOOR(), and more! ... Divide & round numbers the right way. ... Find and fix pesky NULLs. ... Catch a CASE. ... Analyze two tables in one go. ... Learn to handle dates and timestamps. ... Let's go from good to great at SQL.