I am writing a JPA QL named query that would search for documents. This should be done in only one query and I cannot switch to native SQL (that\'s non functional requirement).
I\'m using JPQL and want to receive some normal parameters and a collection in a Constructor Expression to directly create the DTO-objects. But if the Collection is empty, I always get a error because
I have a query like the following: Select new mypackage.MyClass( u, max(sc.serviceDate)) from Unit u left join u.serviceCalls sc
i have four queries that return intergers. select listOfIntegers from [something]... (edit: the results are ROWS)
Is there anyway to retrieve the last \"m\" in开发者_运维知识库stances from a 1 to n relationship using JPQL?
Given the below JPQL statement, how do I modify it so that the kittens in the resulting list are ordered开发者_如何学编程 by their age property?
What\'s the difference between the IN and MEMBER开发者_如何学JAVA OF JPQL operators?IN tests is value of single valued path expression (persistent attribute of your entity) in values you provided to q
Im trying to compare Calendars with JPA2. The query looks somewhat like that: TypedQuery<X> q = em.createQuery(\"select r from Record r where r.calendar= :calendar\", X.class);
I could n开发者_StackOverflowot make a better title, if anyone can do it please, help me out! Same for tags.
I\'m using the following query, for getting all Fruits that are linked with the User. return (List<Fruit>) getEm()
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