[Solved] org.springframework.dao. DataIntegrityViolationException: could not execute statement


Hibernate throws ConstraintViolationException, when tries to insert a row or update particular column or delete records that violate underlying database integrity constraints.
Below is some common situation where ConstraintViolationException occurs:

  • Insert a record with primary key as null.
  • Insert/ Update primary key value is not unique.
  • Insert data value size is more than predefine column size.
  • The inserted record data type is not compatible with predefined column type.

To see a complete list of Database Integrity Constraints follow this link :

Database Integrity Constraints List

ConstraintViolationException Example

Here below exception is occurring because inserting value of primary key as null.

@Entity
public class Publication {
	@Id
	@GeneratedValue
	protected Long id;

	@NotNull
	@Size(max = 100)
	@Column(unique = true)
	private String title;

	private int year;
	//getter and setter methods
	}

Exception stacktrace


org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; 
constraint [\"PUBLIC.UK_C5HPK0II0AH4H4EAAGM8HQUO0_INDEX_C ON PUBLIC.PUBLICATIONS(TITLE) VALUES 2\"; 
SQL statement:\ninsert into publications (id, title, type, year) values (null, ?, ?, ?) [23505-199]]; 
nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:296)
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:253)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:527)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:153)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:138)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
    at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
    at com.sun.proxy.$Proxy121.save(Unknown Source)
    at com.pub.PublicationServices.controller.AuthorsCrudController.createAuthor(AuthorsCrudController.java:69)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892)
    at org.springframework.web.servlet.mvc.

Solutions

As primary key rule states that columns set as primary key not allowed Null value and only contained unique values so that row can uniquely identified base don primary key.

To resolve this issue pass primary key column (id) value as unique and not NULL.

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