I have a query in sql. I want to write it in JPA Spring.
How can i do it ?
SELECT * FROM user WHERE user.id=3 and user.enabled=1
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1there is already mistake in sql query = )Whencesoever– Whencesoever2017-07-07 07:56:04 +00:00Commented Jul 7, 2017 at 7:56
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Do you want a jpql query or do you want to execute the sql?user8227693– user82276932017-07-07 07:58:28 +00:00Commented Jul 7, 2017 at 7:58
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1 Answer
To perform a native SQL query in JPA you have to do the following:
EntityManager manager = getEntityManager();
Query query = manager.createNativeQuery("SELECT * FROM user WHERE user.id = :id AND user.enabled = :enabled;");
query.setParameter("id", 3);
query.setParameter("enabled", 1);
Object[] user = query.getSingleResult();
If you want a JPQL query:
EntityManager manager = getEntityManager();
TypedQuery<User> query = manager.createQuery("SELECT u FROM User u WHERE u.id = :id AND user.enabled = :enabled;", User.class);
query.setParameter("id", 3);
query.setParameter("enabled", 1);
User user = query.getSingleResult();
Using the JPQL query is the better style because it is type-safe. You can perform the statement directly on the entity without knowing the specific table structure of your database.