org.hibernate.exception.ConstraintViolationException:

org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:202) at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:91) at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:86) at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:171) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2048) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2427) at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:51) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at struts.dao.project.budgetAnalysis.BudgetPlanningDAO.saveNewBudget(BudgetAnalysisDAO.java:428) at struts.project.budgetAnalysis.NewBudgetPlanSaveAction.execute(NewBudgetSaveAction.java:99) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) Caused by: java.sql.BatchUpdateException: ORA-01400: cannot insert NULL into ("ROOT"."PROJECT_BUDGET_TEST"."APPROVED_STATUS") at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367) at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:8739) at org.apache.tomcat.dbcp.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294) at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:195) ... 36 more

Solution:

This type of problems generally occurs when we try to violate the constraint relationship of the tables. The fallowing cases may be the reason for the above exception: 1)If the user try to enter null value into not null fields of the database. 2)If the user trying to store other format value into the database field.