Database Systems Practice Test 354

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

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The MCQs: In accessing a database from a Java program is to, opening a connection is said to be the; "Java Database Connectivity (JDBC)" App (Android, iOS) with answers: First step; Zeroth step; Second step; Last step; for online certificate programs. Practice Advanced SQL Questions and Answers, Google eBook to download free sample for accelerated computer science degree online.

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

Zeroth step
First step
Second step
Last step

MCQ 1767:

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

rank
aggregates
row_number
set difference

MCQ 1768:

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

Null value
0
Unknown
True/False

MCQ 1769:

We can avoid the loss of information by performing

Natural join
Outer join
Full join
Inner join

MCQ 1770:

The type of a scalar subquery result is still a relation, even if it contains a

Single instance
Single tuple
Single attribute
Single aggregate

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