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The following SQL statement selects all the orders from the customer with CustomerID=4 (Around the Horn). WriteLine("Hello World!"); } } } Hello World! Click on the "Try it Yourself" button to see how it works. No registration for start, No DownLoad, No Install. Start your developer career today. 12. The FULL OUTER JOIN command returns all rows when there is a match in either left table or right table. Function Parameters and Arguments. Hope, these exercises help you to improve your SQL skills. SQL Statement: SELECT AVG (Price) AS AveragePrice FROM Products; Edit the SQL Statement, and click "Run SQL" to see the result. Back-end development refers to the server -side (how a web page works ). W3Schools offers free online tutorials, references and exercises in all the major languages of the web. XPath is a major element in the XSLT standard. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Learn with proven training materials used by millions. xxxxxxxxxx. The Try-MySQL Editor at w3schools. WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. Practice data interview questions from Apple, Google, Amazon, TikTok, Snap, Meta, Microsoft. Join our online community and get started today! 70 Million +. Complete the learning modules, pass the exam, and get the certification trusted by top companies and institutions worldwide. Learn Faster Practice is key to mastering coding, and the best way to put your SQL knowledge into practice is by getting practical with code. You will learn how to make HTML Templates and use Django Template Tags to insert data within a HTML document. SQL Select . Returns the name of the current database. The CREATE INDEX statement is used to create indexes in tables. An alias only exists for the duration of that query. Learn More. 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