About DISABLE_SELECTIVE

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Issue
9

Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled

Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled
Manual
8

WHERE clause (JPQL / Criteria API)

The WHERE clause adds filtering capabilities to the FROM-SELECT structure. It is essential in any JPQL query that retrieves selective objects from the database. Out of the four optional clauses ... , which is represented by the parameter p: SELECT c FROM Country c WHERE c.population > :p The FROM clause
Forum
8

Problem with distinct select, order by and equivalent alias/attribute path

));                 em.getTransaction().commit();                         String q1 = "select ... ();                 q1 = "select distinct s.location "             + "from Street s ... , Location.class).getResultList();                 String q2 = "select distinct s.location
Manual
7

JPA Query Structure (JPQL / Criteria)

and easier to use in Java. JPQL Query Structure As with SQL, a JPQL SELECT query also consists of up to 6 clauses in the following format: SELECT ... FROM ... [WHERE ...] [GROUP BY ... [HAVING ...]] [ORDER BY ...] The first two clauses, SELECT and FROM are required in every retrieval query
Manual
7

Index Definition

execution. Indexes are especially efficient in lookup and range queries: SELECT p FROM Point p WHERE p.x = 100 SELECT p FROM Point p WHERE p.x BETWEEN 50 AND 80 SELECT p FROM Point p WHERE p.x >= 50 ... enables quick execution of the following queries: SELECT p FROM Point p WHERE p.x = 100 AND p.y = 100
Issue
6

Issue with DISTINCT Select

It is getting more and more frustrating :( We've introduced distinct select instead of regular selection in our code (no changes else) and suddenly receive invalid identifiers in queries exceptions ... identifier (namely, $1) multiple times for different selections in the same query
Forum
6

ClassCastException on SELECT NEW ... after UPDATE over Java RMI

internally runs SELECT NEW ... queries. For example: SELECT NEW com.arunta.base.db.FileNameDTO(r.id, r.fileName) FROM RecordingMetaData AS r WHERE ... A remote RMI client runs SELECT (but not SELECT ... is that once we UPDATE a record from the client (via the RMI interface), all SELECT NEW ... queries
Manual
6

JPA Criteria API Queries

JPA Criteria Query The following query string represents a minimal JPQL query: SELECT c FROM ... c = q.from(Country.class); q.select(c); The CriteriaBuilder interface serves as the main ... , the range variable, c, is also used in the SELECT clause as the query result expression
Forum
6

Multi selection and distinct in a criteria query

hi, How can I realize multi selection with the criteria api concerning distinct? I.e. doing something like SELECT DISTINCT $1, $2 wouldn't work because I do only have something like criteria.multiselect(...) and nothing like builder.distinct(selection) so that I could do something like criteria
Forum
6

Is there any faster select method?

SELECT: TypedQuery query = em.createQuery(     "SELECT p FROM Point p WHERE p.id ... ); ** the Point class is of the tutorial. I found the above select method is ten times slower ... . Is there any faster method of select? TIA Entity objects can be retrieved by their primary key (object