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
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*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
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