Hi All, I am trying to change the persistence of the HumanTaskService from the in memory database to Oracle and I am having the below errors if some one can help. I have posted my persistence,xml and the Error that I am having. Persistence.xml --------------- <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <persistence version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd" xmlns:orm="http://java.sun.com/xml/ns/persistence/orm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/persistence"> <persistence-unit name="org.drools.task"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>org.drools.task.Attachment</class> <class>org.drools.task.Content</class> <class>org.drools.task.BooleanExpression</class> <class>org.drools.task.Comment</class> <class>org.drools.task.Deadline</class> <class>org.drools.task.Delegation</class> <class>org.drools.task.Escalation</class> <class>org.drools.task.Group</class> <class>org.drools.task.I18NText</class> <class>org.drools.task.Notification</class> <class>org.drools.task.EmailNotification</class> <class>org.drools.task.EmailNotificationHeader</class> <class>org.drools.task.PeopleAssignments</class> <class>org.drools.task.Reassignment</class> <class>org.drools.task.Status</class> <class>org.drools.task.Task</class> <class>org.drools.task.TaskData</class> <class>org.drools.task.SubTasksStrategy</class> <class>org.drools.task.OnParentAbortAllSubTasksEndStrategy</class> <class>org.drools.task.OnAllSubTasksEndParentEndStrategy</class> <class>org.drools.task.User</class> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.OracleDialect"/> <property name="hibernate.connection.driver_class" value="oracle.jdbc.OracleDriver"/> <property name="hibernate.connection.url" value="..... my databse url is placed here..." /> <property name="hibernate.connection.username" value="drools"/> <property name="hibernate.connection.password" value="drools"/> <property name="hibernate.connection.autocommit" value="false" /> <property name="hibernate.max_fetch_depth" value="3"/> <property name="hibernate.hbm2ddl.auto" value="create-drop" /> <property name="hibernate.show_sql" value="true" /> </properties> </persistence-unit> </persistence> ERROR: -------- SEVERE: Unsuccessful: create table Attachment (id number(19,0) not null, name varchar2(255), accessType number(10,0), contentType varchar2(255), attachedAt date, si number(10,0) not null, attachmentContentId number(19,0) not null, attachedBy_id varchar2(255), TaskData_Attachments_Id number(19,0), primary key (id)) Mar 30, 2010 12:10:37 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00904: : invalid identifier Mar 30, 2010 12:10:37 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table Comment (id number(19,0) not null, text clob, addedAt date, addedBy_id varchar2(255), TaskData_Comments_Id number(19,0), primary (id)) Mar 30, 2010 12:10:37 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00903: invalid table name Mar 30, 2010 12:10:38 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table Deadline (id number(19,0) not null, date date, escalated number(1,0) not null, Deadlines_EndDeadLine_Id number(19,0), Deadlines_S tDeadLine_Id number(19,0), primary key (id)) Mar 30, 2010 12:10:38 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00904: : invalid identifier Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table Notification_BusinessAdministrators (task_id number(19,0) not null, entity_id varchar2(255) not null) Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table Notification_EmailNotificationHeader (Notification_id number(19,0) not null, emailHeaders_id number(19,0) not null, mapkey varcha 255), primary key (Notification_id, mapkey), unique (emailHeaders_id)) Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table PeopleAssignments_BusinessAdministrators (task_id number(19,0) not null, entity_id varchar2(255) not null) Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table PeopleAssignments_ExcludedOwners (task_id number(19,0) not null, entity_id varchar2(255) not null) Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table PeopleAssignments_PotentialOwners (task_id number(19,0) not null, entity_id varchar2(255) not null) Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: create table PeopleAssignments_TaskStakeholders (task_id number(19,0) not null, entity_id varchar2(255) not null) Mar 30, 2010 12:10:39 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Attachment add constraint FK1C935432077E1A4 foreign key (attachedBy_id) references OrganizationalEntity Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00942: table or view does not exist Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Attachment add constraint FK1C93543839A1819 foreign key (TaskData_Attachments_Id) references Task Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00942: table or view does not exist Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Comment add constraint FK9BDE863F44E05A35 foreign key (TaskData_Comments_Id) references Task Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00903: invalid table name Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Comment add constraint FK9BDE863FC17237C8 foreign key (addedBy_id) references OrganizationalEntity Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00903: invalid table name Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Deadline add constraint FK21DF3E78F9CD9DE3 foreign key (Deadlines_StartDeadLine_Id) references Task Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00942: table or view does not exist Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Deadline add constraint FK21DF3E78B92DDCCA foreign key (Deadlines_EndDeadLine_Id) references Task Mar 30, 2010 12:10:40 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00942: table or view does not exist Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Escalation add constraint FK67B2C6B5F8479DB0 foreign key (Deadline_Escalation_Id) references Deadline Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00942: table or view does not exist Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table I18NText add constraint FK2349686B63D84819 foreign key (Deadline_Documentation_Id) references Deadline Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00942: table or view does not exist Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Notification_BusinessAdministrators add constraint FK4DCCC4FAB009A012 foreign key (entity_id) references OrganizationalEntity Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Notification_BusinessAdministrators add constraint FK4DCCC4FA9A939BFA foreign key (task_id) references Notification Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Notification_EmailNotificationHeader add constraint FK92169CC0379F97EA foreign key (emailHeaders_id) references EmailNotificationH er Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table Notification_EmailNotificationHeader add constraint FK92169CC01B1E66DC foreign key (Notification_id) references Notification Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_BusinessAdministrators add constraint FK3D56AB6EB009A012 foreign key (entity_id) references OrganizationalEntity Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_BusinessAdministrators add constraint FK3D56AB6EC834E294 foreign key (task_id) references Task Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_ExcludedOwners add constraint FK19190ED2B009A012 foreign key (entity_id) references OrganizationalEntity Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_ExcludedOwners add constraint FK19190ED2C834E294 foreign key (task_id) references Task Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_PotentialOwners add constraint FK9C9C2A96B009A012 foreign key (entity_id) references OrganizationalEntity Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_PotentialOwners add constraint FK9C9C2A96C834E294 foreign key (task_id) references Task Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_TaskStakeholders add constraint FKE6997FFAB009A012 foreign key (entity_id) references OrganizationalEntity Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: Unsuccessful: alter table PeopleAssignments_TaskStakeholders add constraint FKE6997FFAC834E294 foreign key (task_id) references Task Mar 30, 2010 12:10:41 PM org.hibernate.tool.hbm2ddl.SchemaExport create SEVERE: ORA-00972: identifier is too long Mar 30, 2010 12:10:42 PM org.hibernate.tool.hbm2ddl.SchemaExport execute INFO: schema export complete Hibernate: select task0_.id as col_0_0_, deadline1_.id as col_1_0_, deadline1_.date as col_2_0_ from Task task0_, Deadline deadline1_ where (deadline1_.id in (selec tartdeadl2_.id from Deadline startdeadl2_ where task0_.id=startdeadl2_.Deadlines_StartDeadLine_Id) or deadline1_.id in (select enddeadlin3_.id from Deadline enddead 3_ where task0_.id=enddeadlin3_.Deadlines_EndDeadLine_Id)) and deadline1_.escalated=0 order by deadline1_.date Mar 30, 2010 12:10:43 PM org.hibernate.util.JDBCExceptionReporter logExceptions WARNING: SQL Error: 1747, SQLState: 42000 Mar 30, 2010 12:10:43 PM org.hibernate.util.JDBCExceptionReporter logExceptions SEVERE: ORA-01747: invalid user.table.column, table.column, or column specification javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:629) at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:73) at org.drools.task.service.TaskService.<init>(TaskService.java:65) at org.drools.task.service.TaskService.<init>(TaskService.java:48) at RunTaskService.start(RunTaskService.java:48) at RunTaskService.main(RunTaskService.java:31) Caused by: org.hibernate.exception.SQLGrammarException: could not execute query at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.loader.Loader.doList(Loader.java:2223) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104) at org.hibernate.loader.Loader.list(Loader.java:2099) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:64) ... 4 more Caused by: java.sql.SQLException: ORA-01747: invalid user.table.column, table.column, or column specification at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:316) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:282) at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:639) at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:185) at oracle.jdbc.driver.T4CPreparedStatement.execute_for_describe(T4CPreparedStatement.java:503) at oracle.jdbc.driver.OracleStatement.execute_maybe_describe(OracleStatement.java:965) at oracle.jdbc.driver.T4CPreparedStatement.execute_maybe_describe(T4CPreparedStatement.java:535) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1051) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:2984) at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3026) at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186) at org.hibernate.loader.Loader.getResultSet(Loader.java:1787) at org.hibernate.loader.Loader.doQuery(Loader.java:674) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236) at org.hibernate.loader.Loader.doList(Loader.java:2220) ... 12 more Exception in thread "main" java.lang.Exception at RunTaskService.start(RunTaskService.java:53) at RunTaskService.main(RunTaskService.java:31) -- View this message in context: 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