13 | JPA Query Structure (JPQL / Criteria) ...]] [ORDER BY ...] The first two clauses, SELECT and FROM are required in every retrieval query ... , HAVING and ORDER BY are optional. The structure of JPQL DELETE and UPDATE queries is simpler: DELETE ... GROUP BY / HAVING (groupBy, having, count, sum, avg, min, max, ...). Criteria ORDER BY (orderBy, Order, asc, desc). |
13 | javax.persistence.criteria.CriteriaQuery have been specified. Returns: having clause predicate Since: JPA 2.0 List<Order> getOrderList() Return the ordering expressions in order of precedence. Return the ordering expressions in order of precedence. Returns empty list if no ordering expressions have been specified. Modifications to the list |
12 | JPA Primary Key are physically stored in the database ordered by their primary key. Sometimes it is useful to choose ... ; : } @Embeddable Class EventId { int sensorId; Date time; } Because entity objects are ordered ... to evaluate the different alternatives in order to select the best solution. |
9 | Database Management Settings it might be necessary to record "all" operations in order to reproduce the problem. Naturally, the recording ... the background, a soon as new indexes are detected, in order to activate these new indexes. The priority |
9 | JPA Entity Fields, the order of the retrieved owner entities can be set by the OrderBy annotation: @Entity public class ... FROM Employee e WHERE e.department = :d ORDER BY e.name The specified field ("name |
9 | Database Replication and Clustering to connect to the master server in order to listen to updates. The updates are automatically ... different URL is required in order to access the slave database: EntityManagerFactory emf = Persistence |
9 | JPA Query Expressions (JPQL / Criteria)Query expressions are the foundations on which JPQL and criteria queries are built. Every query consists of clauses - SELECT, FROM, WHERE, GROUP BY, HAVING and ORDER BY, and each clause consists ... the following operators (in order of decreasing precedence): Navigation operator (.) Arithmetic operators |
1 | [ODB1] Chapter 8 - ObjectDB Server support for embedded mode. In order to use client server mode, you have to install the odbse.jar file ... , you can increase the maximum allowed memory and instruct Java to run in server mode in order to enlarge ... number that was specified during server startup in order for the stop/restart command to have any |
0 | ObjectDB 1.0 Manual (SQL, JDBC or JDO) is not required in order to follow this guide, but a strong background ... on practical issues in order to make the reader proficient in a short time. After reading this guide |
0 | [ODB1] Chapter 2 - A Quick Tour have to be specified in order to run the program Main class: > java Main George Bush 57 Each time ... modifying class files in order to add implementation of the PersistenceCapable interface |
