Zoltan Papp [https://community.jboss.org/people/pzoli] created the discussion
"Re: MySQL database connection error" To view the discussion, visit: https://community.jboss.org/message/802725#802725 -------------------------------------------------------------- > *And the second is a MySQL exception, there a lots of tables missings like:* > com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown table > 'sequences' in information_schema > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > [rt.jar:1.6.0_24] > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > [rt.jar:1.6.0_24] > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > [rt.jar:1.6.0_24] > at java.lang.reflect.Constructor.newInstance(Constructor.java:532) > [rt.jar:1.6.0_24] > at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) > at com.mysql.jdbc.Util.getInstance(Util.java:386) > at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052) > at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609) > at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541) > at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002) > at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163) > at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2618) > at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2568) > at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1557) > at > org.jboss.jca.adapters.jdbc.WrappedStatement.executeQuery(WrappedStatement.java:340) > at > org.hibernate.tool.hbm2ddl.DatabaseMetadata.initSequences(DatabaseMetadata.java:149) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.tool.hbm2ddl.DatabaseMetadata.<init>(DatabaseMetadata.java:70) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.tool.hbm2ddl.DatabaseMetadata.<init>(DatabaseMetadata.java:63) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:196) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:178) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:457) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1737) > [hibernate-core-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84) > [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904) > [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:889) > [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final] > at > org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73) > [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final] > at > org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:162) > [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final] > at > org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:85) > [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final] > at > org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) > at > org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > [rt.jar:1.6.0_24] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > [rt.jar:1.6.0_24] > at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_24] > > *My questions are:* > *Should I create the MySQL DB schema (I thin I should), and if I should where > can I find an SQL script for this?* > *The first error also caused by the DB error?* > > Thanks for your help! > > Best Regards, > > Csaba Kedves Csaba! A sequences táblát azért keresi, mert egyedi azonosítót adtál egy táblának, de nincs -vagy rossz- generálási stratégiát adtál hozzá. @Entity -> @Id -> @GeneratedValue(strategy=GenerationType.IDENTITY) Dobd el előtte a táblákat, hogy újra létrehozza ezeket az entitás tárolókat, és beállítsa a kulcs mezőt a táblára. üdv., Zoltán -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/802725#802725] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034]
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