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Database Systems MCQs – Mock Test 312

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The Relational Databases MCQ with Answers PDF (Relational Databases Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 13-312 to learn Database Systems Practice Tests. Learn Introduction to DBMS Test PDF, Relational Databases Multiple Choice Questions (MCQ Quiz) for computer and information science. Download the Database Systems MCQs App: Free Relational Databases MCQs App to learn relational algebra, history of database systems, recursive views, relational databases test prep to study online certification courses.

The MCQ: Most commercial relational database systems employ the language; "Relational Databases" App (Free Android & iOS) with answers: java, c++, db2, and sql for computer and information science. Practice Introduction to DBMS Questions and Answers, Google e-Book to download free chapter for 2 year computer science degree.

Relational Databases MCQ – Mock Test 312 PDF Download

MCQ: 1556

Most commercial relational database systems employ the language

  1. C++
  2. Java
  3. SQL
  4. DB2
MCQ: 1557

The first subquery of the recursive view that is non-recursive is called as the

  1. Absolute query
  2. Base query
  3. Nonrecurring query
  4. General query
MCQ: 1558

Magnetic tapes were developed for data storage over the period

  1. 1940s-1950s
  2. 1950s-1960s
  3. 1960s-1965s
  4. 1960s-1970s
MCQ: 1559

In a selection statement, the predicate appears as a subscript to

  1. epsilon
  2. zeta
  3. sigma
  4. delta
MCQ: 1560

The command that all instructors with salary over $100,000 receive a 3 percent raise, would be written as

  1. update instructor
    set salary=salary * 1.03
    where salary > 100000;
  2. update instructor
    set salary=salary * 1.03
    where salary <>=100000;
  3. update in instructor
    set salary=salary * 1.03
    where salary >=100000;
  4. update into instructor
    set salary=salary * 1.03
    where salary >=100000;

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Relational Databases MCQs App (Android & iOS)

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DataBase Management System (MCS) MCQs App

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