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SQL UNION and SQL UNION ALL | How to Combine the result sets of 2 or more SELECT statements in SQL
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The SQL UNION Operator- The UNION operator is used to combine the result-
set of two or more SELECT statements.
Each SELECT statement within UNION must have the same number of columns
The columns must also have similar data types
The columns in each SELECT statement must also be in the same order
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set of two or more SELECT statements.
Each SELECT statement within UNION must have the same number of columns
The columns must also have similar data types
The columns in each SELECT statement must also be in the same order
You can follow us on the below social media handles:-
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