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POInternal HSQL database complains about privileges
 

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    <p>I'm setting up a standalone Java service with an in-process, in-memory HSQL database.</p> <p><strong>Persistence.xml</strong></p> <pre><code>&lt;persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0"&gt; &lt;persistence-unit name="manager"&gt; &lt;class&gt;tr.silvercar.data.entities.User&lt;/class&gt; &lt;properties&gt; &lt;property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver" /&gt; &lt;property name="javax.persistence.jdbc.user" value="sa" /&gt; &lt;property name="javax.persistence.jdbc.password" value="" /&gt; &lt;property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:mem:testdb" /&gt; &lt;property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" /&gt; &lt;property name="hibernate.max_fetch_depth" value="3" /&gt; &lt;!-- cache configuration --&gt; &lt;!-- &lt;property name="hibernate.ejb.classcache.org.hibernate.ejb.test.Item" value="read-write" /&gt; &lt;property name="hibernate.ejb.collectioncache.org.hibernate.ejb.test.Item.distributors" value="read-write, RegionName" /&gt; --&gt; &lt;/properties&gt; &lt;/persistence-unit&gt; &lt;/persistence&gt; </code></pre> <p><strong>Code</strong></p> <pre><code> emf = Persistence.createEntityManagerFactory("manager"); User newUser = new User(); newUser.setName("Testgebruiker"); newUser.setCredits(100); System.out.println("Inserting user"); EntityManager em = emf.createEntityManager(); em.persist(newUser); em.close(); System.out.println("Getting user"); em = emf.createEntityManager(); User u = (User) em.createQuery("SELECT u FROM User u").getSingleResult(); em.close(); System.out.println(u); </code></pre> <p>It would seem to me that since the database is in memory, and Hibernate should generate tables, that I don't need to do anything else. However, upon calling <code>getSingleResult</code> I get the exception:</p> <pre><code>org.hsqldb.HsqlException: user lacks privilege or object not found: USER </code></pre>
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    1. CODon't know what is happening there with this in memory database... :S Maybe [fredt](http://stackoverflow.com/users/361828/fredt) will show up with a good explanation. Just in case, what version of HSQLDB are you using?
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    2. CO@Pascal I'm using 2.0
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    3. COMaybe try with 1.8.1.3, just to be sure.
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