How to use order by and Limit in Spring Data JPA using QueryDSL

问题

I am using Spring Data JPA with a RDBMS in my project. I have a requirement where I have to fetch a single record from the Database from a table which has the latest date. For this I need to use a limit and order by function OR using sub queries. However, I wished to know if i wish for not to use NamedQuery is there a way I can achieve this using Spring Data JPA and QueryDSL.

回答1:

Shouldn't QueryDslPredicateExecutor.findAll(Predicate predicate, Pageable pageable) do the trick for you? You could hand in a new PageRequest(0, limit) and thus would get back the first limitresults.

回答2:

How about using the MIN and MAX function to attain this.

SELECT MAX(objDate) FROM Object

来源：https://stackoverflow.com/questions/6356322/how-to-use-order-by-and-limit-in-spring-data-jpa-using-querydsl