SQL Tutorial #36 - SQL UNION Operator | UNION vs UNION ALL in SQL
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SQL Tutorial #36 - SQL UNION Operator | UNION vs UNION ALL in SQL
Get all my courses for USD 5.99/Month - https://bit.ly/all-courses-subscription In this SQL Tutorial, we will learn about SQL Union Operator. The Union Operator in SQL is used to combine the result-set of two or more SELECT statements. You need to make sure that every SELECT statement within UNION must have the same number of columns and ...
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