SQL Certification Guide

The SQL Certification requires skills in SQL.

The SQL Developer Certificate
SQL is a standard for accessing database systems. SQL statements are used to retrieve and update data in a database.

SQL can execute queries against a database
SQL can retrieve data from a database
SQL can insert records in a database
SQL can update records in a database
SQL can delete records from a database
SQL can create new databases
SQL can create new tables in a database
SQL can create stored procedures in a database
SQL can create views in a database
SQL can set permissions on tables, procedures, and views
By mastering this subject you will be able to retrieve and update data from a database.

SQL Developer Certificate

Prerequisites
Before you apply for your exam, you should have a fundamental knowledge of:

SQL
Recommended Studies And Training
All questions in the exam are based on the content of W3Schools' SQL tutorial. We strongly recommend the following tutorial, quiz and exercises:

Tutorial Quiz Exercises
SQL Tutorial SQL Quiz SQL Exercises
The SQL Exam
The SQL exam will be taken over the Internet, at any time and from any location, but the exam should be supervised by a person selected by the exam candidate.

The exam consists of 70 multiple choice or true/false questions. The exam is time-limited to 70 minutes.

Candidates must have 75% correct answers to pass the exam and become certified.

Candidates who have more than 95% correct answers will get an Excellency Degree notation added to their certificate.

Immediately after completing the exam, you will be informed of your score and of your pass/fail status.

If you fail, or want to improve your score, you can take the exam one more time. The best result of the two attempts will count.

If you achieve certification status, you can download your SQL Developer Certificate. The document will contain your personal data acknowledging your status as a Certified SQL Developer.

If you have any questions regarding the exam, do not hesitate to send an email to:

exam@w3schools.com

The Supervisor
To add full credibility to your Certificate, you should have a supervisor to watch over you when taking the exam.

You must pick your own supervisor.

The supervisor should be used to see that you do not cheat. There are no other special criteria for the supervisor.

The supervisor's name and title will be printed on the certificate, so it could be wise to pick a supervisor who will add credibility to your certificate (e.g. your boss or teacher).

W3Schools Certified Image
To verify that you are W3Schools certified, place the image below on your web site (right-click on the image and select "Save Picture As..."):

W3Schools Certificate

Then, put a link around the image and link directly to all your W3Schools certificates:

<a href="https://certification.w3schools.com/w3certified.asp?email=your_email">
<img src="w3certified_logo.png" alt="W3Schools Certified"/></a>

or:

<a href="https://certification.w3schools.com/w3certified.asp?id=your_id">
<img src="w3certified_logo.png" alt="W3Schools Certified"/></a>