Question

I have MYSQL query

SELECT WEEKDAY(CreatedDate), 
    COUNT(CreatedDate), 
    CreatedDate FROM bug_List
GROUP BY 
    WEEKDAY(CreatedDate)

But I couldn’t find WEEKDAY function in hibernate is there any best way to resolve it

Here i tried from nativeSQL but i got empty array object

query=session.createSQLQuery(“SELECT weekday(CreatedDate),
count(CreatedDate) FROM bug_list GROUP BY WEEKDAY(CreatedDate)”);

         result=query.list();

        Iterator resultIterator = result.iterator();
        while(resultIterator.hasNext())
        {
            Object[] obj = (Object[]) resultIterator.next();
            for (int i = 0; i < obj.length; i++) {
                System.out.print(obj[i] + "\t");
                }
            System.out.println("");

        }

Answer 1

WEEKDAY is not standard SQL, and thus if you wish to use Hibernate you must roll a custom HibernateDialect in which you do something like the following…

registerFunction("weekday",
    new SQLFunctionTemplate(Hibernate.INTEGER, "to_char(?1,'D')"));

As seen here.