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SET Operators are used to –

SET Operators are used to –

  1. Compile the results from two queries
  2. Compile the results from three queries
  3. Compile the results from four queries
  4. Compile the results from five queries
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Name of the operators in SET Operators is –

Name of the operators in SET Operators is –

  1. UNION
  2. INTERSECT
  3. MINUS
  4. All of the above
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Rules that are needed to be followed in SET Operators in SQL are –

Rules that are needed to be followed in SET Operators in SQL are –

  1. All columns must be identical in number and order.
  2. There must be compatibility between data types.
  3. Both A and B
  4. None of the above
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Combining the results of ___ select statements will be done using UNION

Combining the results of ___ select statements will be done using UNION.

  1. One
  2. Two
  3. Three
  4. Four
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What is TRUE about UNION ALL Operator?

What is TRUE about UNION ALL Operator?

  1. The results of both queries are combined with this operator.
  2. After performing the UNION ALL operation, duplicate rows will not be removed.
  3. Both A and B
  4. None of the above
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A SELECT statement is intersected to use it as a join, but it only returns the records that are ________ between both statements

A SELECT statement is intersected to use it as a join, but it only returns the records that are ________ between both statements.

  1. Distinct
  2. Common
  3. Shared
  4. Both B and C
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MINUS Operator displays the rows which are –

MINUS Operator displays the rows which are –

  1. Detected in the second query, absent in the first query, and there are no duplications.
  2. Detected in the first query, absent in the second query, and there are no duplications.
  3. Detected in the first query, absent in the second query, and there are duplications.
  4. Detected in the second query, absent in the first query, and there are duplications.
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What is the difference between UNION & UNION ALL operators?

What is the difference between UNION & UNION ALL operators?

  1. Combining the results of two select statements will be done using UNION whereas combined records from both queries are returned by UNION ALL operator.
  2. Combining the results of two select statements will be done using UNION ALL whereas combined records from both queries are returned by UNION operator.
  3. After performing the UNION operation, duplicate rows will not be removed whereas after performing the UNION ALL operation, duplicate rows will be removed.
  4. None of the above
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total MCQs: 8

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