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Database Systems MCQs – Practice Test 40 (Chapter 15)

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Study Introduction to SQL Notes Questions and Answers PDF to study database systems. Download the Introduction to SQL Quiz Answers PDF e-Book, Ch. 15-40 to learn Database Systems Course. Solve Additional Basic Operations MCQs, Introduction to SQL MCQs questions and answers PDF to study database systems. Download the Introduction to SQL Study App: Free Database Systems Notes App to learn basic structure of sql queries, aggregate functions, nested subqueries career test to improve database efficiency.

The "Introduction to SQL Notes" App Download: A query for finding the names of all instructors, is; MCQ with answers: define name about instructor;, define name from instructor;, select name about instructor;, and select name from instructor. Practice ER Diagrams Symbols Quiz Questions, download Kobo e-Book (Free Chapter) to study database systems.

Introduction to SQL MCQs – Practice Test 40 PDF Download

MCQ 196: The Output of '%Comp%' matching the string containing:

  1. Computer Science
  2. Computational Biology
  3. Computing logic
  4. All of the Above

MCQ 197: A query for finding the names of all instructors, is:

  1. Define name from instructor;
  2. Define name about instructor;
  3. Select name about instructor;
  4. select name from instructor;

MCQ 198: SQL does not allow the use of distinct with:

  1. Avg(*)
  2. Min(*)
  3. Sum(*)
  4. Count(*)

MCQ 199: The clause that allows us to select only those rows in the result relation, is:

  1. Select clause
  2. Define clause
  3. From clause
  4. Where clause

MCQ 200: Scalar subqueries may also be defined without:

  1. Variables
  2. Instances
  3. Aggregates
  4. Where clause

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