Database Systems MCQs (Computer Science) From Textbook

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Database Systems Certification MCQs – Practice Test 3 (Chapter 22)

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The SQL Interview Questions and Answers Quiz Questions and Answers PDF (SQL Interview Questions and Answers Quiz PDF e-Book) download Ch. 22-3 to study Database Systems Course. Practice Modification of Database MCQs, SQL Interview Questions and Answers MCQ questions and answers PDF for BSc computer science. Download the SQL Interview Questions and Answers Quiz App: Free Database Systems Quiz App to study career test for online computer science schools.

The MCQ: We may wish to change a value in a tuple without changing all values in the tuple. For this purpose, the statement to be used is; "SQL Interview Questions and Answers Quiz" App (iOS, Android) with answers: alter, modify, define, and update for online database certification. Study Concurrency Control Concept in DBMS Quiz Questions, download Google Book (Free Chapter) for BSc computer science.

SQL Interview Questions and Answers Quiz – Practice Test 3 PDF Download

MCQ: 11

We may wish to change a value in a tuple without changing all values in the tuple. For this purpose, the statement to be used is

  1. Modify
  2. Alter
  3. Define
  4. Update
MCQ: 12

SQL expresses an insertion operation as

  1. insert into r
  2. insert to r
  3. insert for r
  4. insert in r
MCQ: 13

SQL handles queries on relations containing null values by adding the truth value

  1. True
  2. False
  3. Unknown
  4. 0/1
MCQ: 14

To avoid the problem with the order of updates, SQL provides a

  1. Update construct
  2. Case construct
  3. Order construct
  4. Flow construct
MCQ: 15

The "Bulk loader" utilities allow data to be read from

  1. Rewritable text files
  2. Non-readable text files
  3. Formatted text files
  4. Extracted text files

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