Database Systems MCQs – Mock Test 354

Java Database Connectivity (JDBC) MCQs with Answers PDF Download – Test 354

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Free Java Database Connectivity (JDBC) MCQ App Download (iOS & Android): "In accessing a database from a Java program is to, opening a connection is said to be the"; MCQ with answers: first step, zeroth step, last step, and second step. Practice Advanced SQL Questions and Answers, Google Book to download free chapter for digital DBMS education.

Java Database Connectivity (JDBC) MCQs – Mock Test 354 PDF Download

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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