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SQL Tutorial

SQL HOME SQL Intro SQL Syntax SQL Select SQL Select Distinct SQL Where SQL Order By SQL And SQL Or SQL Not SQL Insert Into SQL Null Values SQL Update SQL Delete SQL Select Top SQL Aggregate Functions SQL Min and Max SQL Count SQL Sum SQL Avg SQL Like SQL Wildcards SQL In SQL Between SQL Aliases SQL Joins SQL Inner Join SQL Left Join SQL Right Join SQL Full Join SQL Self Join SQL Union SQL Group By SQL Having SQL Exists SQL Any, All SQL Select Into SQL Insert Into Select SQL Case SQL Null Functions SQL Stored Procedures SQL Comments SQL Operators

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ADD ADD CONSTRAINT ALL ALTER ALTER COLUMN ALTER TABLE AND ANY AS ASC BACKUP DATABASE BETWEEN CASE CHECK COLUMN CONSTRAINT CREATE CREATE DATABASE CREATE INDEX CREATE OR REPLACE VIEW CREATE TABLE CREATE PROCEDURE CREATE UNIQUE INDEX CREATE VIEW DATABASE DEFAULT DELETE DESC DISTINCT DROP DROP COLUMN DROP CONSTRAINT DROP DATABASE DROP DEFAULT DROP INDEX DROP TABLE DROP VIEW EXEC EXISTS FOREIGN KEY FROM FULL OUTER JOIN GROUP BY HAVING IN INDEX INNER JOIN INSERT INTO INSERT INTO SELECT IS NULL IS NOT NULL JOIN LEFT JOIN LIKE LIMIT NOT NOT NULL OR ORDER BY OUTER JOIN PRIMARY KEY PROCEDURE RIGHT JOIN ROWNUM SELECT SELECT DISTINCT SELECT INTO SELECT TOP SET TABLE TOP TRUNCATE TABLE UNION UNION ALL UNIQUE UPDATE VALUES VIEW WHERE
MySQL Functions
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_SUB DAY DAYNAME DAYOFMONTH DAYOFWEEK DAYOFYEAR EXTRACT FROM_DAYS HOUR LAST_DAY LOCALTIME LOCALTIMESTAMP MAKEDATE MAKETIME MICROSECOND MINUTE MONTH MONTHNAME NOW PERIOD_ADD PERIOD_DIFF QUARTER SECOND SEC_TO_TIME STR_TO_DATE SUBDATE SUBTIME SYSDATE TIME TIME_FORMAT TIME_TO_SEC TIMEDIFF TIMESTAMP TO_DAYS WEEK WEEKDAY WEEKOFYEAR YEAR YEARWEEK Advanced Functions: BIN BINARY CASE CAST COALESCE CONNECTION_ID CONV CONVERT CURRENT_USER DATABASE IF IFNULL ISNULL LAST_INSERT_ID NULLIF SESSION_USER SYSTEM_USER USER VERSION
SQL Server Functions
String Functions: ASCII CHAR CHARINDEX CONCAT Concat with + CONCAT_WS DATALENGTH DIFFERENCE FORMAT LEFT LEN LOWER LTRIM NCHAR PATINDEX QUOTENAME REPLACE REPLICATE REVERSE RIGHT RTRIM SOUNDEX SPACE STR STUFF SUBSTRING TRANSLATE TRIM UNICODE UPPER Numeric Functions: ABS ACOS ASIN ATAN ATN2 AVG CEILING COUNT COS COT DEGREES EXP FLOOR LOG LOG10 MAX MIN PI POWER RADIANS RAND ROUND SIGN SIN SQRT SQUARE SUM TAN Date Functions: CURRENT_TIMESTAMP DATEADD DATEDIFF DATEFROMPARTS DATENAME DATEPART DAY GETDATE GETUTCDATE ISDATE MONTH SYSDATETIME YEAR Advanced Functions CAST COALESCE CONVERT CURRENT_USER IIF ISNULL ISNUMERIC NULLIF SESSION_USER SESSIONPROPERTY SYSTEM_USER USER_NAME
MS Access Functions
String Functions: Asc Chr Concat with & CurDir Format InStr InstrRev LCase Left Len LTrim Mid Replace Right RTrim Space Split Str StrComp StrConv StrReverse Trim UCase Numeric Functions: Abs Atn Avg Cos Count Exp Fix Format Int Max Min Randomize Rnd Round Sgn Sqr Sum Val Date Functions: Date DateAdd DateDiff DatePart DateSerial DateValue Day Format Hour Minute Month MonthName Now Second Time TimeSerial TimeValue Weekday WeekdayName Year Other Functions: CurrentUser Environ IsDate IsNull IsNumeric
SQL Quick Ref

SQL Examples

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SQL Training

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Introduction: SQL is a standard language for storing, manipulating and retrieving data in databases.

W3Schools offers an SQL training course that covers SQL foundations and more.

The course includes the W3Schools Certified SQL Developer certification.

The SQL training is relevant for companies and schools that want to certify their employees or students.

Organizations can track learner progress, get insights and manage everything from licenses to certificates with W3Schools Academy.

Remember that you can always learn for free on W3Schools with the SQL Tutorial.

Buy W3Schools Academy » Watch Demo »

*Academy is available for companies and schools only.

Track progress

Get analytics to track learner progress and results.

Self-paced

Flexible timelines and pacing to match busy schedules.

Globally Recognized

Certifications that are trusted by leading organizations worldwide

SQL Training with W3Schools

W3Schools has been training millions of learners since 1998.

Governments, schools, and organizations worldwide trust W3Schools to train employees and students.

W3Schools training materials and content have been well-proven over the years and are updated regularly.

With the W3Schools Academy pricing model, it is now one of the worlds most affordable quality SQL training options there is.

The average pricing per learner is $18 from start to certificate.

*You only qualify this pricing as a company or school.

Learning Outcomes

The Certificate Course includes all the training materials to pass the Certified SQL Developer certification exam.

No prerequisites are required to take the course.

The learners will be able to:

  • Understand what SQL is and why you would use it.
  • Create and manage databases and tables.
  • Insert, update, and delete data in tables.
  • Use SELECT with filters (WHERE) and sorting (ORDER BY) to get data.
  • Use JOIN to combine data from multiple tables.
  • Use functions like SUM, AVG, and COUNT to group data and add them up.
  • Create table relationships with foreign keys.
  • Use SQL functions like MIN, MAX, and COUNT.
  • Understand subqueries and indexes.
  • Manage user permissions and data security.

If you are not a company or school, you can still buy the course for personal use.

Read more about W3Schools courses here: W3Schools Courses

Certified SQL Developer

After completing the training modules the learner will take the end of pathway exam.

When the learner passes the exam, the learner will get the Certified SQL Developer certification.

The exam is a multiple choice exam with 60 questions and a duration of 60 minutes.

Image of a SQL Certificate:

The certificate does not expire and is valid for lifetime.

It is shareable and can be added to your CV or LinkedIn profile.

You can read more about the certificate here: SQL Certificate

Track Learner Progress

As an employer or a school you can track learner progress and results.

Assign courses to learners with ease and get them started in no time.

With W3Schools Academy you can manage everything from licenses to certificates.

It will give you everything you need to train your employees or students in different technologies.

Image of class overview in Academy:

You can read more about the Academy here: W3Schools Academy

Note: If you don't want to track progress, there is an option to give them access to the course without any management.

Interactive Learning

The course is designed to be interactive and fun to learn.

The learner will engage with different learning activities to keep them engaged.

This includes quizzes, code exercises, challenges, and a final exam.

Stay engaged with hands-on coding challenges that help you practice and test what you've learned.

Image of one of the activity types in the course, a SQL Challenge:

SQL is best learned by doing, and this is why we have included a lot of challenges in the course.

  • You will get access to hundreds of coding challenges
  • Get instant feedback with auto-grading
  • Receive personalized guidance with manual grading
  • Work on exercises ranging from simple to complex

You can read more about the different types of activities here: Coding Exercises

Training Course Overview

Pricing Academy $5.99 / month per learner, including access to W3Schools Academy
Pricing Details A minimum 3-month license is required, with an average learner cost of $18 from start to completion.
Course level Beginner
Time to complete 48 hours on average
Course Format Self-paced
Language English
Prerequisites None
Exam and Certification Included
Number of certificates 1
Certificate name Certified SQL Developer
Exam format Multiple choice
Certification skill level Intermediate (40%), Advanced (75%) and Professional (90%)
Certification Expiration Never

How to Get Started

  1. Purchase W3Schools Academy access for your organization
  2. Create a class and invite your learners
  3. Assign the SQL course to your class
  4. Monitor learner progress through the admin dashboard
  5. Review analytics and certification results

Are you ready to start training your employees today?

Buy Access to Academy Now »


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