Open or create the query you want to run.
Right-click anywhere in the query window, and select Execute SQL from the shortcut menu.
Press CTRL+R..
The SQL and XQuery compiler performs several steps to produce an access plan that can be executed.
The SQL and XQuery compiler analyzes the query to validate the syntax.
If any syntax errors are detected, the query compiler stops processing and returns an appropriate error to the application that submitted the query..
SQL Fiddle
Running a SQL Command
Enter the SQL command you want to run in the command editor.
Click Run (Ctrl+Enter) to execute the command..
The SQL compiler gathers information to help it process queries.
To obtain data from data sources, users and applications submit queries in SQL to the federated database..
It's one of the robust, feature-rich online editor and compiler for MySQL
Getting started with the OneCompiler's MySQL editor is really simple and pretty fast
The editor shows sample boilerplate code when you choose language as 'MySQL' and start writing queries to learn and test online without worrying about tedious process of installation
Another popular SQL online compiler is DB-Fiddle
Developed and maintained by Status200, a web specialized in application and digital product development
The compiler can be selected from the main page’s top menu, as shown in the image below
Top menu bar: Contains the main buttons needed, such as the execution and sharing buttons
Db<>Fiddle supports more SQL compilers than the other SQL online compilers
It supports SQL Server, SQLite, Firebird, MariaDB, MySQL, PostgreSQL, DB2, and Oracle
Besides, you can query Sample databases using some compilers such as SQL Server 2019
