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ObjectDB License

£500 and includes all version 2.x updates. A server license covers one installation of ObjectDB ... License ObjectDB 2.x Site License costs £2,500 and includes all version 2.x updates. A site license
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Obtaining a JPA Database Connection

, update, and delete should only be performed within an active transaction. Given an EntityManager, em ... that modify the database content, such as persist and remove. Database updates are collected and managed
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Database Schema Evolution

object is only updated to the new schema when that entity object is stored to the database ... explicitly in the configuration to avoid data loss. The Schema Update section in chapter 6 explains how to specify such changes in the configuration file.
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Chapter 1 - Quick Tour

ObjectDB databases and perform basic CRUD operations (Create/Store, Retrieve, Update and Delete ... , retrieving, updating and deleting Point objects. To run the sample program of this chapter in
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JPA Exceptions

, an attempt to update the database with no active transaction is represented by: Database update
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JPA Lifecycle Events

- when an entity is identified as modified by the EntityManager. @PostUpdate - after updating an entity in
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FROM clause (JPQL / Criteria API)

, SUM, THEN,TRAILING, TRIM, TRUE, TYPE, UNKNOWN, UPDATE, UPPER, VALUE, WHEN, WHERE. JPQL variables as
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Database Doctor

without its recovery file or recording directory. Power failure when the database is being updated
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ObjectDB 1.0 Manual

and transactions in JDO. Chapter 6 - Persistent Objects Shows how to store, retrieve, update
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[ODB1] Chapter 8 - ObjectDB Server

port="6136" update-rate="20"> <data path="$objectdb/server/data" /> <log path="$objectdb

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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