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Database Systems MCQs (Computer Science) From Textbook

Database Systems MCQs – Practice Test 56 (Chapter 15)

Introduction to SQL Notes Questions with Answers PDF Download – Test 56

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Study Introduction to SQL Notes Questions and Answers PDF for database career preparation. Download the Introduction to SQL Quiz Answers PDF e-Book, Ch. 15-56 to learn Database Systems Course. Solve Basic Structure of SQL Queries MCQs, Introduction to SQL MCQs questions and answers PDF for database career preparation. Free Database Systems Notes App Download: Introduction to SQL Learning App to learn overview of sql query language, sql data definition, nested subqueries career test to master database technology.

Learn Database Systems Notes App (Free) with MCQ: "Query for finding the Distinct department names of all instructors, would be"; with answers: select dept_name distinct from instructor;, select distinct dept_name from instructor;, define dept_name distinct from instructor;, and define distinct dept_name from instructor. Practice Database Authorization Quiz Questions, download Kobo e-Book (Free Chapter) for database career preparation.

Introduction to SQL MCQs – Practice Test 56 PDF Download

MCQ 276: The query for finding the Distinct department names of all instructors, would be:

  1. select distinct dept_name from instructor;
  2. select dept_name distinct from instructor;
  3. define dept_name distinct from instructor;
  4. define distinct dept_name from instructor;

MCQ 277: SQL statements can be embedded with in general-purpose programming languages, like:

  1. C
  2. C++
  3. JAVA
  4. All of the Above

MCQ 278: SQL allows duplicates in relations as well as in the results of:

  1. SQL data
  2. SQL query
  3. SQL flag
  4. SQL expressions

MCQ 279: The set of relations in a database must be specified to the system by means of a:

  1. Data Declaration language
  2. Data Definition language
  3. Data processing language
  4. Data manipulation language

MCQ 280: We can test for the existence of duplicate tuples in a subquery by using the:

  1. Like
  2. Not Like
  3. Unique
  4. Not Unique

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