Set Operations in SQL
In this video, we will cover SQL Set Operations, which are used to combine or compare the results of multiple SELECT queries. You'll learn when and how to use each set operation with practical examples.
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Topics covered:
Introduction to Set Operations
UNION – Combine results and remove duplicate records
UNION ALL – Combine results including duplicates
INTERSECT – Return common records from multiple queries
EXCEPT – Return records present in the first query but not the second
Rules and conditions for using Set Operations
Practical examples and real-world use cases
By the end of this video, you'll have a clear understanding of how to merge and compare query results efficiently using SQL Set Operations.