Database Systems Practice Test 338

Java Database Connectivity (JDBC) MCQ (Multiple Choice Questions) PDF - 338

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Java Database Connectivity (JDBC) Questions and Answers PDF Download: Quiz 338

MCQ 1686: The method that is used to return the arity, is known as

A) getRowCount

B) getColumnCount

C) columnGetCount

D) rowGetCount

MCQ 1687: To retrieve information from and store new information into the database, is the primary goal of

A) Data manipulation systems

B) Database systems

C) Data monitoring system

D) Data integrity system

MCQ 1688: Null values complicate the referential-integrity constraints

A) Syntax

B) Logic

C) Semantics

D) Handling

MCQ 1689: In the disk access, data are transferred between disk and main memory in

A) Units of blocks

B) Units of segments

C) Units of sectors

D) Units of clusters

MCQ 1690: To design a trigger mechanism, we must meet

A) 1 requirement

B) 2 requirements

C) 3 requirements

D) 4 requirements

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