We would like to show you a description here but the site won’t allow us. For example, -- insert a row in the Customers table INSERT INTO Customers (customer_id, first_name, last_name, age, country) VALUES (5, 'Harry', 'Potter', 31, 'USA'); Run Code. Practice a lot - The only way you can learn SQL is by practicing. Our online SQL Playground is live. SQL Editor. Product . Learn Popular SQL Courses. You can use Python Shell like IDLE, and take inputs from the user in our Python compiler. 4) SQL Prompt. Result: Click "Run SQL" to execute the SQL statement above. SELECT first_name, age. JavaScript has evolved a lot in the past decade. 9. It's completely free and runs on the browser. Downvote. Note: Our online SQL editor doesn't support this action as it is based on SQLite. The Java text editor also supports taking input from the user and standard libraries. We would like to show you a description here but the site won’t allow us. 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