如何使用JPA查询舍入列值？

Question

I need to compare for equality on a number stored in the database as a floating point number (this has to support multiple databases and I haven't got any control over how it's stored), but of course equality will only get you so far with an approximated value, so I need to round the column value like this:

select * from x where round(col, 2) = ?;

Unfortunately I can't seem to find a way of doing that in JPQL. Is there any way to achieve this (without changing the database)?

Answer 1

I have two ideas to solve this problem:

1. make a between query

2. use a native query