How do you use SQL Fiddle?

SQL Fiddle is an online SQL programming environment where you can write, run, and debug SQL code.

With SQL Fiddle, you are able to:

1. Choose different database systems, such as MySQL, Oracle, PostgreSQL, etc.
2. Write and edit SQL code.
3. Execute SQL queries and manipulate databases.
4. View the query results and the table structure of the database.
5. Debug the SQL code and review the error messages.

You can create one or more database schemas on SQL Fiddle, then create tables and insert data in each schema. By selecting the appropriate database system and schema, you can test and run SQL code in different environments.

Furthermore, SQL Fiddle also offers a feature for sharing links, allowing you to share your SQL code and test results with others so that they can view and run your code.

In conclusion, SQL Fiddle is a very convenient tool that can help you write, run, and debug SQL code in an online environment, as well as share your code and results with others.