What is Union and Union All in SQL?
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In this video, we explore the concepts of Union and Union All in SQL. Both functions are used to combine data from two tables. Union appends data and removes duplicate records, considering the entire row for duplication. Union All also appends data but keeps all records, including duplicates. The video demonstrates how to use these functions with examples, highlighting the importance of matching column orders and data types in the tables being combined. The video concludes by encouraging viewers to like, share, and subscribe for more content.