database query error column not found only from scheduled task - spring

Question

I have the task to persist data into a database every 10 seconds or so. I'm using Spring Boot with an MVC architecture. When I try to retrieve data from the database it throws an error saying that a column is not found though the column exists. If i use the query it works as it should. But when I run it from the scheduled task it throws the error.
Repository class:
#Repository
public interface StudentRepository extends CrudRepository<Student, Integer> {
#Query(value="SELECT student_table.student_id FROM student student_table WHERE NOT EXISTS (SELECT relationship_table.student_id FROM relationship_table relationship_table WHERE student_table.student_id = relationship_table.student_id), nativeQuery=true)
List<Student> getAllStudentsWithoutStudentAccount();
}
Student class:
#Entity
#Table(name = "student")
public class Student implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "student_id")
private int workerId;
#Column(name = "name")
private String name;
#Column(name = "last_name")
private String lastName;
#OneToMany(mappedBy = "student", cascade = CascadeType.ALL)
private Collection<StudentAccount> studentAccounts;
StudentAccount class:
#Entity
#Table(name = "student_account")
public class StudentAccount implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "student_account_id", nullable = false)
private int studentAccountId;
#Column(name = "username")
private String username;
#Column(name = "password")
private String password;
#ManyToOne
#JoinTable(name = "relationship_table",
joinColumns = #JoinColumn(name = "student_id"),
inverseJoinColumns = #JoinColumn(name = "student_account_id"))
private Student student;
ScheduledTasks class
#Component
public class ScheduledTasks implements Runnable{
#Autowired
private StudentAccountServiceImpl studentAccountServiceImpl;
#Autowired
private StudentServiceImpl studentServiceImpl;
private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
public void createStudentAccountAtScheduledTime(){
List<Student> studentsWithoutStudentAccount = studentServiceImpl.getAllStudentsWithoutStudentAccount();
StudentAccountServiceImpl.createStudentAccount(studentsWithoutStudentAccount);
System.out.println("Creating student accounts on scheduled task at: "+dateFormat.format(new Date())) ;
}
#Override
public void run() {
createStudentAccountAtScheduledTime();
}
}
Controller class
#Controller
public class StudentController {
#Autowired
private StudentServiceImpl studentServiceImpl;
#Autowired
private StudentAccountServiceImpl studentAccountServiceImpl;
#Autowired
private TaskScheduler taskScheduler;
#Autowired
private ScheduledTasks scheduledTasks;
#GetMapping
public String index(Model model){
studentAccountServiceImpl.populateDatabase();
taskScheduler.schedule(scheduledTasks, new CronTrigger("0/5 * * * * ?"));
return "views/index";
}
Full stacktrace:
Hibernate: SELECT student_table.student_id FROM student student_table WHERE NOT EXISTS (SELECT relationship_table.student_id FROM relationship_table relationship_table WHERE student_table.student_id = relationship_table.student_id
2019-05-14 14:46:15.067 WARN 7572 --- [ scheduling-1] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 0, SQLState: S0022
2019-05-14 14:46:15.067 ERROR 7572 --- [ scheduling-1] o.h.engine.jdbc.spi.SqlExceptionHelper : Column 'last_name' not found.
2019-05-14 14:46:15.080 ERROR 7572 --- [ scheduling-1] o.s.s.s.TaskUtils$LoggingErrorHandler : Unexpected error occurred in scheduled task.
org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute query; SQL [SELECT student_table.student_id FROM student student_table WHERE NOT EXISTS (SELECT relationship_table.student_id FROM relationship_table relationship_table WHERE student_table.student_id = relationship_table.student_id]; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:279) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:253) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:527) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:153) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:138) ~[spring-data-jpa-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at com.sun.proxy.$Proxy91.getAllWorkersWithoutUserAccount(Unknown Source) ~[na:na]
at com.madcoderz.studentaccountapplication.serviceimpl.StudentServiceImpl.getAllStudentsWithoutStudentAccount(StudentServiceImpl.java:44) ~[classes/:na]
at com.madcoderz.studentaccountapplication.serviceimpl.StudentServiceImpl$$FastClassBySpringCGLIB$$f47c08aa.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at com.madcoderz.studentaccountapplication.serviceimpl.StudentServiceImpl$$EnhancerBySpringCGLIB$$8a1c09e5.getAllStudentsWithoutStudentAccount(<generated>) ~[classes/:na]
at com.madcoderz.studentaccountapplication.scheduledTasks.ScheduledTasks.createStudentAccountsAtScheduledTime(ScheduledTasks.java:28) ~[classes/:na]
at com.madcoderz.studentaccountapplication.scheduledTasks.ScheduledTasks.run(ScheduledTasks.java:35) ~[classes/:na]
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[na:na]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:835) ~[na:na]
Caused by: org.hibernate.exception.SQLGrammarException: could not execute query
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2692) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2672) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2506) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.list(Loader.java:2501) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:338) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2222) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1063) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:170) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1505) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.query.Query.getResultList(Query.java:132) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:129) ~[spring-data-jpa-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:91) ~[spring-data-jpa-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:136) ~[spring-data-jpa-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:125) ~[spring-data-jpa-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:605) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$invoke$3(RepositoryFactorySupport.java:595) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:595) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 29 common frames omitted
Caused by: java.sql.SQLException: Column 'last_name' not found.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.15.jar:8.0.15]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.15.jar:8.0.15]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.15.jar:8.0.15]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.15.jar:8.0.15]
at com.mysql.cj.jdbc.result.ResultSetImpl.findColumn(ResultSetImpl.java:581) ~[mysql-connector-java-8.0.15.jar:8.0.15]
at com.mysql.cj.jdbc.result.ResultSetImpl.getString(ResultSetImpl.java:967) ~[mysql-connector-java-8.0.15.jar:8.0.15]
at com.zaxxer.hikari.pool.HikariProxyResultSet.getString(HikariProxyResultSet.java) ~[HikariCP-3.2.0.jar:na]
at org.hibernate.type.descriptor.sql.VarcharTypeDescriptor$2.doExtract(VarcharTypeDescriptor.java:62) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:253) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:243) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:329) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:3010) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1746) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1672) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.getRow(Loader.java:1561) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:731) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.processResultSet(Loader.java:990) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.doQuery(Loader.java:948) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:340) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2689) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
... 52 common frames omitted
As you can see the last_name column is created and exists. I don't know why it throws the error from the scheduled task. Need some help. Thanks in advance.

Answer 1

Your query is not complete.
You want to return a Student entity but you are just selecting student_id. You have to select all columns.
This should work:
#Query(value="SELECT student_table.* FROM student student_table WHERE NOT EXISTS (SELECT relationship_table.student_id FROM relationship_table relationship_table WHERE student_table.student_id = relationship_table.student_id)", nativeQuery=true)
List<Student> getAllStudentsWithoutStudentAccount();