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Database Systems Competitive Exam MCQs – Practice Test 29 (Chapter 15)

Introduction to SQL Multiple Choice Questions and Answers PDF – Test 29

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Study Introduction to SQL Multiple Choice Questions (MCQs) and Answers PDF to develop system expertise. Download the Introduction to SQL MCQs PDF e-Book, Ch. 15-29 to study Database Systems Course. Practice Overview of SQL Query Language MCQs, Introduction to SQL Notes questions and answers PDF for DBMS online training. Download the Introduction to SQL MCQ App: Free Database Systems MCQs App to study basic structure of sql queries, sql data definition career test for enterprise database systems.

Free Introduction to SQL MCQs App Download: For those attributes that appear in only one of the two schemas, we shall usually drop the; MCQ with answers: relation name prefix, relation name schema, attribute name prefix, and tuple address prefix. Solve Database Users and Administrators Quiz Questions, download Google e-Book (Free Chapter) to develop system expertise.

Introduction to SQL MCQs with Answers PDF Download – Test 29

MCQ 141: The term that provides the ability to query information from the database, is known as:

  1. SQL DML
  2. SQL DDL
  3. Embedded SQL
  4. View definition

MCQ 142: For those attributes that appear in only one of the two schemas, we shall usually drop the:

  1. Relation name schema
  2. Relation name prefix
  3. Attribute name prefix
  4. Tuple address prefix

MCQ 143: The char data type stores strings of:

  1. Fixed length
  2. Variable Length
  3. 4 bits only
  4. 8 bits only

MCQ 144: A null value indicates an absent value that:

  1. may exist but unknown
  2. known but doesn't exist
  3. doesn't exist and not known
  4. Both A and B

MCQ 145: In SQL the operations like insert tuples into, delete tuples from, and modify tuples in the database, is task done by:

  1. View definition
  2. Embedded SQL
  3. SQL DDL
  4. SQL DML

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