How can I get last inserted id using Hibernate

Question

I want to fetch the last inserted value\'s id in Hibernate.

After search:

Long lastId = ((Long) session.createSQLQuery(\"SELECT LAST_INSERT_ID()\").         


        

Answer 1

Since the return type of uniqueResult() is BigInteger and not Long, you should do it like this:

long lastId = session.createSQLQuery("SELECT LAST_INSERT_ID()")
                     .uniqueResult()  // this returns a BigInteger
                     .longValue();    // this will convert it to a long value

The method uniqueResult() only returns a BigInteger because of your query SELECT LAST_INSERT_ID().