SQL ROUND Function

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SQL > SQL Functions > ROUND Function

The ROUND function in SQL is used to round a number to a specified precision.

Syntax

The syntax for the ROUND function is,

ROUND (expression, [decimal place])

where [decimal place] indicates the number of decimal points returned. A negative number means the rounding will occur to a digit to the left of the decimal point. For example, -1 means the number will be rounded to the nearest tens.

Examples

We use the following table for our examples.

Table Student_Rating

Column Name Data Type

StudentID integer

First_Name char(20)

Rating float

and this table contains the following rows:

Table Student_Rating

StudentID First_Name Rating

1 Jenny 85.235

2 Bob 92.52

3 Alice 3.9

4 James 120.1

Example 1: Decimal place is positive

To round to the nearest tenths place, we use the following SQL:

SELECT First_Name, ROUND (Rating, 1) Rounded_Score FROM Student_Rating;

Result:

First_Name Rounded_Score

Jenny 85.2

Bob 92.5

Alice 3.9

James 120.1

Example 2: Decimal place is negative

To round to the nearest tens place, we use the following SQL:

SELECT First_Name, ROUND (Rating, -1) Rounded_Score FROM Student_Rating;

Result:

First_Name Rounded_Score

Jenny 90

Bob 90

Alice 0

James 120

Next: SQL String Functions

This page was last updated on June 19, 2023.

SQL ROUND Function

Syntax

Examples

Example 1: Decimal place is positive

Example 2: Decimal place is negative

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