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Manual
6

Date and Time in JPQL and Criteria Queries

Date and time expressions may appear in JPQL queries: as date and time literals - e.g. {d '2011-12-31'}, {t '23:59:59'}. as parameters - when date and time values are assigned as arguments. as path expressions - in navigation to persistent date and time fields. as results of predefined JPQL current
Tutorial
6

Getting Started with JPA - Maven Project

The Getting Started with JPA tutorial provides step by step instructions on how to build a simple JPA database driven application in Eclipse or NetBeans. Building a new application step by step is an effective way to learn - but if you prefer, you may download and run the result application as
FAQ
6

Is ObjectDB better than Object Relational Mapping (ORM)?

As noted above, using ObjectDB instead of a relational database and ORM combination is easier and leads to better performance. ORM tools, however, are very useful where the use of a relational database is mandatory (e.g. as a result of a customer request or when a new application is developed
Tutorial
6

Java EE 6 JPA Tutorial - Maven Project

and run the result application as a Maven project: Java EE 6 JPA Web App - Maven Project (6KB
Manual
6

JPA Primary Key

useful when using queries that return large result sets. As an example, consider a real time
Manual
6

JPA Query Structure (JPQL / Criteria)

defines the query results. The query above simply returns all the Country objects from the iteration
Result
6

ObjectDB Web Site - Terms and Conditions of Use

representations concerning the accuracy, likely results, or reliability of the use of the materials
Manual
6

Online Backup

but at that time the backup operation may still be in progress. The backup query returns as a result
Manual
6

Paths and Types in JPQL and Criteria API

Instances of user defined persistable classes (entity classes, mapped super classes and embeddable classes) are represented in JPQL by the following types of expressions: Variables - FROM identification variables and SELECT result variables. Parameters - when instances of these classes are assigned
Manual
6

Shared (L2) Entity Cache

. Cache of query programs. Cache of query execution results. The scope of these server side caches