Question
please convert the sql in hql
SQL Statement : select username from useraccout where email = "parameter value"
More description:
while running the code i am getting this error:
public List dispUser(String email){
Query query = em.createQuery("SELECT u.username FROM Useraccout u WHERE u.email=:email)");
query.setParameter(email, email);
List search = query.getResultList();
return search;
}
while running the code i am getting following error
java.lang.IllegalArgumentException: org.hibernate.hql.ast.QuerySyntaxException:
Useraccout is not mapped [SELECT u.username FROM Useraccout u WHERE u.email=:email1)]
at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:624)
at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:96)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
Solution
It appears you haven't mapped a class named Useraccount
. My guess is that either:
- You've mapped a class named
Useraccount
and have typed the name of this class incorrectly in the query - You haven't mapped any classes. This indicates that you don't understand the basics of Hibernate. In short, every class that maps to a database table needs to define this mapping using either an XML file or annotations.
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