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Database Systems Exam Prep MCQs – Mock Test 68

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The Aggregate Functions MCQ with Answers PDF (Aggregate Functions Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 15-68 to learn Database Systems Practice Tests. Learn Introduction to SQL Test PDF, Aggregate Functions Multiple Choice Questions (MCQ Quiz) for associates in computer science. Download the Aggregate Functions MCQs App: Free Database Systems MCQs App to learn java database connectivity (jdbc), types of storage structure, database authorization, aggregate functions test prep to study e-learning courses.

The MCQ: All aggregate operations, return a value of null when applied on an; "Aggregate Functions" App (Free Android & iOS) with answers: sum collection, avg collection, empty collection, and data collection for associates in computer science. Practice Introduction to SQL Questions and Answers, Google e-Book to download free chapter for information and communication technology.

Aggregate Functions MCQ – Mock Test 68 PDF Download

MCQ: 336

All aggregate operations, return a value of null when applied on an

  1. Avg collection
  2. Sum collection
  3. Data collection
  4. Empty collection
MCQ: 337

To grant a privilege with the grantor set to the current role associated with a session, we can add the clause

  1. granted by current-roll
  2. define by current-role
  3. select by current-role
  4. set by current-role
MCQ: 338

When a transaction is rolled back and entered at the aborted stage, the available system's options are of

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types
MCQ: 339

For each attribute, the JDBC retrieve its

  1. Name
  2. Address
  3. Data type
  4. Both A and C
MCQ: 340

The authorization types can be assigned to users as

  1. All
  2. None
  3. Combinations
  4. All of the Above

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