How to Round Numbers in SQL

Rounding Numbers in SQL

Do you need to round numbers in your SQL database? You're in luck! SQL has a handy way of rounding numbers that can help you get the result you need.

The Solution

The solution is to use the ROUND() function. This function takes two arguments: the number you want to round and the number of decimal places you want to round to. For example, if you wanted to round the number 3.14159 to two decimal places, you would use the following query:

SELECT ROUND(3.14159, 2);

This query would return the result 3.14.

Examples

Let's look at a few examples of how this function can be used. Suppose you have a table called sales with the following data:

product      price
------------------
Widget       3.14159
Gadget       2.71828

If you wanted to round the prices in this table to two decimal places, you would use the following query:

SELECT product, ROUND(price, 2) FROM sales;

This query would return the following results:

product      price
------------------
Widget       3.14
Gadget       2.72

Additional Info

The ROUND() function is supported by most major databases, including MySQL, PostgreSQL, and SQL Server. However, the syntax may vary slightly depending on the database you are using. For more information, check out the documentation for your particular database. 🤓