Question

guess the output of the following query select round (36.67,1)from dual
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Answer 1

Given : query

select round (36.67,1) from dual

To Find : Output

Solution:

select round (36.67,1) from dual

number = 36.67

1  to be rounded off upto 1 decimal place

given number 36.67 is  2 decimal place

so check whether digit at 2nd decimal place is 5 or greater

or less than 5

If 5 or greater then increase the value at 1st decimal place by 1

if  less than 5 the value at 1st decimal place remains same

Here 7 is at 2nd decimal place

7 > 5

Hence 36.67  = 36.7  

output of the query select round (36.67,1)from dual  = 36.7

if number of decimal places to be rounded of not mentioned then its taken as 0  and converted to integer

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