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combined index not used

the threshold from 1024 combinations to 10000 solves this issue so a quick fix is possible ... contest and selected. This issue requires further analysis and work, but in order to offer a quick ... time you may be able to manually select the best query plans for these queries as a quick workaround
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JPA Query API

. Building Queries with createQuery As with most other operations in JPA, using queries starts
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GROUP BY and HAVING clauses

with names that start with that letter and the number of different currencies that are used by
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JPA Lifecycle Events

follows the definition order. Internal callback methods are invoked starting at the top level entity class
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Company

500 companies as well as smaller companies and start-ups, governments and defence forces
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SELECT clause (JPQL / Criteria API)

Country AS c WHERE c.name LIKE 'I%' Both Italy and Ireland (whose name starts with 'I') use Euro as
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Database Management Settings

as the background index activation is completed, ObjectDB can start using the new indexes
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Step 1: Create a Web Project

We start by creating a new Eclipse Dynamic Web Project: Open the [New Project] dialog box, e.g. by using File > New > Project... Select Web > Dynamic Web Project and click Next. Choose a Project Name (e.g. Guestbook). Select Apache Tomcat v6.0 as the Target runtime. Note: You may have to add Tomcat
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Step 1: Create a Java Project

We start by creating a new NetBeans Project: Open the [New Project] dialog box, e.g. by using File > New Project... Select Java > Java Application and click Next. Choose a Project Name (e.g. Tutorial). The name of the Main class should be tutorial.Main. Verify that exactly this case sensitive fully
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Step 1: Create a Java EE Web Project

We start by creating a new Java EE 6 Web Application project in NetBeans: Open the [New Project] dialog box, e.g. by using File > New Project... Select Java Web > Web Application and click Next. Choose a Project Name (e.g. Guestbook) and click Next. Select GlassFish Server 3 (or above) and Java EE

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support