We Learn SQL #7 | SET OPERATIONS
Автор: We Learn SQL
Загружено: 2020-04-07
Просмотров: 8023
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SQL Set Operations allow us to combine the results of multiple queries into a single result set. The syntax introduced in this video tutorial is supported by all popular database engines: Oracle, SQL Server, MySQL, or PostgreSQL.
This is another video in the series about SQL basics. Today we are going to tackle set operations. They’re not used as frequently as other SQL features that we’ve talked about, but they can still come in handy in certain situations. It’s good to know how they work.
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