Functions, Joins & Set Operators MCQs

14 MCQs — Oracle: Introduction & SQL Overview MCQs (Page 1 of 2)

Practice Functions, Joins & Set Operators MCQs with correct answers and explanations. These questions are from the Oracle: Introduction & SQL Overview MCQs section.

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Oracle: Introduction & SQL Overview Subcategories

Functions, Joins & Set Operators	Oracle Basics & Tools
Queries, Functions & Joins	Querying & Filtering
SQL Command Categories	*SQLPlus & Oracle Basics**

What does INITCAP('oracle database') return?

ORACLE DATABASE
oracle database
Oracle Database
Oracle database

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What does ROUND(45.926, 2) return?

45.93
45.92
46
45.9

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What does TRUNC(45.926, 1) return?

45.9
46.0
45.93
45.92

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What does MOD(10, 3) return?

3
1
0
3.33

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What is the result of ADD_MONTHS('31-JAN-2026', 1)?

03-MAR-2026
31-FEB-2026
01-MAR-2026
28-FEB-2026

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What does MONTHS_BETWEEN(date1, date2) return?

The number of days between the two dates
The later of the two dates
The month name of date1
The number of months between the two dates

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Which function returns the last day of the month for a given date?

END_OF_MONTH
MONTH_END
FINAL_DAY
LAST_DAY

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Which function converts a character string into a DATE value using a format model?

TO_CHAR
TO_DATE
TO_NUMBER
DATE_FORMAT

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Which of the following is NOT an aggregate function?

SUM
AVG
UPPER
MAX

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Which rule applies to a SELECT with GROUP BY?

All columns must be aggregated
GROUP BY must appear before FROM
Every non-aggregated column in SELECT must appear in GROUP BY
Only numeric columns can be grouped

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