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How to Insert into DB2 with NativeQuery and get generated ID

I'm trying to insert a row into DB2 but i can figure out how to get the generated ID.
With this code it's working but i can't get the ID:
String sql = "INSERT INTO MY_TABLE (MY_COLUMN) VALUES (?)";
Query query = entityManager.createNativeQuery(sql);
query.setParameter(1, "MY_VALUE");
query.executeUpdate();
I did some research, and tried to do like this:
String sql = "INSERT INTO MY_TABLE (MY_COLUMN) VALUES (?)";
Query query = entityManager.createNativeQuery(sql);
query.setParameter(1, "MY_VALUE");
BigDecimal id = (BigDecimal) query.getSingleResult();
But I got this error:
[org.hib.eng.jdb.spi.SqlExceptionHelper] (executor-thread-63) [jcc][t4][10103][10941][4.21.29] Method executeQuery cannot be used for update. ERRORCODE=-4476, SQLSTATE=null
javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not extract ResultSet
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1535)
at org.hibernate.query.internal.AbstractProducedQuery.getSingleResult(AbstractProducedQuery.java:1574)
...
What is the correct way to insert using NativeQuery and get the generated ID?

You can run comand like
-- You befor build str_sql in here
str_sql = 'INSERT INTO ............';
EXECUTE IMMEDIATE str_sql;

mysql- ERROR-You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near

I have two tables in my database viz linkrecord(URL,NAME) and dishrate(dishname, rate,review). I want to create a 3rd table viz record which contains URL, dishname and rating from the 1st two table,in correspondance with dishname which is common to both table. I have tried the following Insert query but it shows the error: "com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.NAME = dishrate.dishnameORDER BY dishrate.rate DESC' at line 1"
The query is:
String query= "INSERT INTO crawler.record (URL, Dishname, rate)"+
"SELECT linkrecord.URL, dishrate.dishname,dishrate.rate"+
"FROM linkrecord, dishrate"+
"WHERE linkrecord.NAME = dishrate.dishname"+
"ORDER BY dishrate.rate DESC";
Statement stmt=db.conn.createStatement();
stmt.executeUpdate(query);
I am unable to find the error in the above query.What should I do? Thank You

You forget the spaces and you ended up with query parts like:
INSERT INTO crawler.record (URL, Dishname,rate)<space missing here>SELECT
Correct way is:
String query= "INSERT INTO crawler.record (URL, Dishname, rate) "+
"SELECT linkrecord.URL, dishrate.dishname,dishrate.rate "+
"FROM linkrecord, dishrate "+
"WHERE linkrecord.NAME = dishrate.dishname "+
"ORDER BY dishrate.rate DESC";

Not able to fetch resultset in Hibernate using HQL

I'm triggering a query using HQL, normally it should return empty resultset as it doesn't have any records w.r.t it. But, it throws
org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106)
My code is
String hql = "FROM com.pck.Person where userId = " + userId;
Query query = session.createQuery(hql);
#SuppressWarnings("unchecked")
List<Dashboard> listUserDetails = query.list(); <-- Problem here.
I'm expecting list size is 0 because there are no records w.r.t userId passed.
What changes do I need to do?

Lets say the value of userId was "abc12"
Given your code, the value of the string called hql would become:
"FROM com.pck.Person where userId = abc12"
If you took the value of that string and tried to run it as a query on any database, most of them would fail to understand that abc12 is a string. Normally it would be interpreted as a variable.
As other users mentioned including the single quotes would produce the desired query, but the recommended way to assign parameter values is this:
String hql = "FROM com.pck.Person where userId = :id"
query.setParameter("id", userId);

Looks like you are missing single quotes around userid.
Try with "FROM com.pck.Person where userId = '" + userId + "'";
or
Use named parameters with query.setParameter("userid", userId);
Posting the full stacktrace would help if this doesn't solve.

Using Select and where statement in Criteria

I am in the process of replacing jdbc with hibernate in my Web Application. I have learned that i don't have to write any SQL queries in this. Instead of this,criteria queries can help me.
These are my SQL queries which i want to convert to hibernate using criteria not HQL.
String getOrgIdQuery = "SELECT * FROM USER_DETAILS WHERE USER_ID= ?";
rsDeptName = stmt.executeQuery("SELECT DEPARTMENT_NAME FROM DEPARTMENT WHERE DEPARTMENT_ID ="+ DeptID + ";");
String insertCreateCdcValuesFirst = ("UPDATE User_Details SET User_Name=?, Organization_ID=?, Department_ID=?, Access_Ctrl = ?, User_Role=? WHERE User_ID = ?;");

First off all you must map your table with POJOS.
String getOrgIdQuery = "SELECT * FROM USER_DETAILS WHERE USER_ID= ?";
Preceding code in Hibernate look like following.
Criteria criteria = session.createCriteria(USER_DETAILS.class);
criteria.add(Restrictions.eq("user_id",yourUserId));
List<USER_DETAILS> list = criteria.list();
Your second select query is also same as preceding.
String insertCreateCdcValuesFirst = ("UPDATE User_Details SET User_Name=?, Organization_ID=?, Department_ID=?, Access_Ctrl = ?, User_Role=? WHERE User_ID = ?;");
With Hibernate Criteria update looks like following:
USER_DETAILS user_details = (USER_DETAILES) session.get(USER_DETAILS.class,yourUserId);
user_details.setUser_Name(NewUserName);
user_details.setOrganization_Id(newOrganizationId);
// some other fields update goes here
session.update(user_details);
tx.commit();
I hope this help you.

How to select last inserted 5 record from table using JPA with Hibernate

How to select last inserted 5 record from table using JPA with Hibernate?
public List<Sample> getAgencyChangeLastFiveRecords(){
return (ArrayList<Sample>) createQuery(
"select * from ( select * from sample order by id desc) where rownum<=5 order by rownum desc"
);
}
This is not working. What would be the corresponding HQL query?

may be you can try below
String hql="from Sample order by id desc"
Query.setMaxResults(5)