Informatics Practices

What does UNION do ?

SQL Joins & Grouping

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Answer

The SQL UNION operator is used to combine the results of two or more queries into a single result set. It removes duplicate rows from the final output.

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Informatics Practices

What does UNION do ?

SQL Joins & Grouping

Answer

Related Questions

What is the difference between ON and USING join-clauses ?

A table STUDENT has 4 rows and 2 columns and another table TEACHER has 3 rows and 4 columns. How many rows and columns will be there if we obtain the Cartesian product of these two tables ?

Are UNION and UNION ALL the same ? Why ?

What does INTERSECT do ?