Go back to E20-555 - Isilon Solutions and Design Specialist Exam for Technology Architects

Question :-

What describes the use of UNION clause in a SQL statement?
Operates on queries and potentially increases the number of rows
Operates on queries and potentially decreases the number of rows
Operates on tables and potentially decreases the number of columns
Operates on both tables and queries and potentially increases both the number of rows and columns

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