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Java Database Connectivity (JDBC) Quiz Questions and Answers 354 PDF Download

Learn java database connectivity (jdbc) quiz questions, database management system online test 354 for distance learning degrees, free online sql courses. Colleges and universities courses' MCQs on advanced sql quiz, java database connectivity (jdbc) multiple choice questions and answers to learn database management system quiz with answers. Practice java database connectivity (jdbc) MCQs, ETS GRE test assessment on nested subqueries, relational algebra, set operations, advanced aggregation features, java database connectivity (jdbc) practice test for online SQL server management studio courses distance learning.

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Quiz on Java Database Connectivity (JDBC) Worksheet 354Quiz PDF Download

Java Database Connectivity (JDBC) Quiz

MCQ: In accessing a database from a Java program is to, opening a connection is said to be the

  1. Zeroth step
  2. First step
  3. Second step
  4. Last step


Advanced Aggregation Features Quiz

MCQ: In a set presence of null values can complex definition of

  1. rank
  2. aggregates
  3. row_number
  4. set difference


Set Operations Quiz

MCQ: SQL treats result of any comparison involving a null value, as a

  1. Null value
  2. 0
  3. Unknown
  4. True/False


Relational Algebra Quiz

MCQ: We can avoid loss of information by performing

  1. Natural join
  2. Outer join
  3. Full join
  4. Inner join


Nested Subqueries Quiz

MCQ: Type of a scalar subquery result is still a relation, even if it contains a

  1. Single instance
  2. Single tuple
  3. Single attribute
  4. Single aggregate