使用HQL查找最大ID

Question

So I have a HQL Query like so:

String query = "from records where lastUpdateTime >=:startDate " +
               "AND lastUpdateTime < :endDate";

I need to change it so that I only retreive the latest version of a record between the two dates.

So I have:

ID | VERSION | other records | LASTUPDATETIME

I need to use a max on the VERSION but my knowledge of HQL is letting me down.

Answer 1

You might need something like that:

String query = "from records r where r.lastUpdateTime >=:startDate " +
               "AND r.lastUpdateTime < :endDate AND r.version = (select max(rec.version) from record rec where rec.id = r.id)";