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INSERT INTO Employee_Bkup ( EmployeeNo, FirstName, LastName, BirthDate, JoinedDate, DepartmentNo ) SELECT EmployeeNo, FirstName, LastName, BirthDate, JoinedDate, DepartmentNo FROM Employee; When the above query is. FROM tablename;Even for persons with SQL expertise, a good online interactive SQL course can be a real help. Enjoy our free tutorials like millions of other internet users since 1999. Free Tutorials. References. Enjoy our free tutorials like millions of other internet users since 1999. In these tutorials, you get step-by-step guides on how to write AI prompts to get the best possible results from text-to-text and text-to-image generative AIs. This Teradata Tutorial for Beginners will help you understand how Teradata performs as a Data Warehouse and other operations for daily use. Free Tutorials. To start using C, you need two things: A text editor, like Notepad, to write C code. File format – choose CSV, but usually, the system auto-detects the file format. 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