To determine the correct answer, let's break down the given SQL statement:
SELECT ROUND(123.456,2) , TRUNC(123.456,2), ROUND(125.456, -1) , TRUNC(126.456,-2) FROM DUAL;
The ROUND function is used to round a number to a specific decimal place, and the TRUNC function is used to remove decimal places from a number.
Let's evaluate each part of the statement:
ROUND(123.456,2) rounds the number 123.456 to 2 decimal places, resulting in 123.46.TRUNC(123.456,2) removes all decimal places after 2, resulting in 123.45.ROUND(125.456, -1) rounds the number 125.456 to the nearest 10, resulting in 130.TRUNC(126.456,-2) removes all decimal places after the nearest 100, resulting in 100.
So, the resulting values are: 123.46, 123.45, 130, 100.
Comparing the resulting values with the answer choices:
A) 123.46, 123.45, 130, 100 - This option matches the resulting values.
B) 123.46, 123.45, 130, 120 - The last value should be 100, not 120.
C) 123.46, 123.45, 120, 100 - The third value should be 130, not 120.
D) 123.46, 123.45, 125, 100 - The third value should be 130, not 125.
Therefore, the correct answer is option A) 123.46, 123.45, 130, 100.