In SQL, a VIEW is a virtual table. It lets you package a complex query into a single table. We will discuss several queries in increasing difficulty to show how VIEWs can greatly simplify your work. In our examples we will introduce CROSS JOINs, Unions, the CONCAT() function, and the COALESCE() function.
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SQL instructor: Ulka Simone Mohanty (@ulkam on Twitter)
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Watch video SQL VIEWS + Complex Queries, Cross Joins, Unions, and more! |¦| SQL Tutorial online without registration, duration hours minute second in high quality. This video was added by user Socratica 29 March 2019, don't forget to share it with your friends and acquaintances, it has been viewed on our site 295,991 once and liked it 11 thousand people.