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Database Systems Practice Test 354

Java Database Connectivity (JDBC) MCQs (Multiple Choice Questions) PDF Download - 354

The Java Database Connectivity (JDBC) Multiple Choice Questions (MCQ) with Answers PDF (Java Database Connectivity (JDBC) MCQs PDF e-Book) download Ch. 1-354 to solve Database Systems Practice Tests. Study Advanced SQL quiz answers PDF, Java Database Connectivity (JDBC) Multiple Choice Questions (MCQ Quiz) for online certificate programs. The Java Database Connectivity (JDBC) MCQs App Download: Free educational app for nested subqueries, relational algebra, set operations, advanced aggregation features, java database connectivity (jdbc) test prep for online software development courses.

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Java Database Connectivity (JDBC) MCQ with Answers PDF Download: Quiz 354

MCQ 1766:

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
MCQ 1767:

In a set the presence of null values can complex the definition of

  1. rank
  2. aggregates
  3. row_number
  4. set difference
MCQ 1768:

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

  1. Null value
  2. 0
  3. Unknown
  4. True/False
MCQ 1769:

We can avoid the loss of information by performing

  1. Natural join
  2. Outer join
  3. Full join
  4. Inner join
MCQ 1770:

The 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

Database Systems Exam Prep Tests

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Java Database Connectivity (JDBC) App (Android & iOS)

Java Database Connectivity (JDBC) App (Android & iOS)

DataBase Management System (MCS) App (Android & iOS)

DataBase Management System (MCS) App (iOS & Android)

PHP App (Android & iOS)

PHP App (Android & iOS)

Basic Control Systems App (Android & iOS)

Basic Control Systems App (iOS & Android)