how to get nearest value from database in mysql

Question

I am using mySQL and CodeIgniter. I have some floating point numbers in my database such as

• 8.3456
• 8.5555
• 4.5556

Answer 1

Read this page http://dev.mysql.com/doc/refman/5.1/en/mathematical-functions.html#function_round

but your select would look like this

select value from table where ROUND(value) = $myvalue