181 | JPA JPQL WHERE clause for IN :variable not working if variable is a list of EnumsHi, I have a case where I have a JPQL query like: "select o from MyEntity o WHERE (enumField IN ... : public enum MyEnumType { VALUE1, VALUE2, VALUE3, VALUE4 } and I call: query.setParameter("enumFieldList", Arrays.asList(MyEnumType.VALUE1, MyEnumType.VALUE2)); Then query |
35 | GROUP BY and HAVING clausesThe GROUP BY clause enables grouping of query results. A JPQL query with a GROUP BY clause returns ... clause in the query execution order is after the FROM and WHERE clauses, but before the SELECT clause. When a GROUP BY clause exists in a JPQL query, database objects (or tuples of database objects |
35 | ORDER BY clause (JPQL / Criteria API)"))); Unlike other methods for setting criteria query clauses - the orderBy method takes a variable number ... The ORDER BY clause specifies a required order for the query results. Any JPQL query that does not ... Expressions The following query returns names of countries whose population size |
34 | Chapter 4 - JPA Queries (JPQL / Criteria)The JPA Query Language (JPQL) can be considered as an object oriented version of SQL. Users ... well as how to use the JPA Criteria API, which provides an alternative way for building queries in JPA ... (named) queries. It explains how to use the relevant interfaces, annotations, enums and methods |
34 | Criteria Query Selection and Results and for representing query results as tuples. SELECT Clause Elements The content of the SELECT clause in a criteria query is represented by Selection: Because Selection is a super interface ... : See the SELECT in Criteria Queries section for more details and examples. ORDER BY Clause Elements Elements in |
33 | OutOfMemoryError in a query with many variables of a query. Can you post the query? Does it have a large number of variables (> 20) ? support Support Hi ... doesn't handle well queries with a lot of variables, and complex navigation (e.g. $1.postalAddresses ... . This should be improved in future versions. support Support Build 2.3.7_03 fixes this issue and removes the limitation on the number of variables in a query. support Support |
33 | Date and Time in JPQL and Criteria QueriesDate and time expressions may appear in JPQL queries: as date and time literals - e.g. {d '2011-12 ... that are evaluated to the date and time on the database server when the query is executed: CURRENT_DATE ... in Criteria Queries The CriteriaBuilder interface provides three factory methods for building date |
32 | Collections in JPQL and Criteria QueriesCollections may appear in JPQL queries: as parameters - when collections are assigned as arguments ... , which should be used for checking other collections, such as a collection that is passed to the query ... of collection, so in ObjectDB these operators are treated as synonyms. Criteria Query Collection |
32 | Literals in JPQL and Criteria Queries literals should be used sparingly as queries that use parameters instead of literals ... values. Literals should only be embedded in JPQL queries when a single constant value is always used ... support for enum literals. Enum literals in JPQL queries use the ordinary Java syntax for enum |
32 | JPA Annotations for JPQL QueriesThe following annotations are used to define static named JPA queries: The JPA Named Queries section of the ObjectDB Manual explains and demonstrates how to use these annotations to define named JPQL queries. |
