Converting Oracle query to Hibernate

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considering I have Txn_Summ_Dec as a domain object (Entity) with all the fields used in the query how would I convert the SQL query below to Hibernate Query (ether HQL or Criteria api)..
What the query does: Given a date range as input the query counts distinct users grouped by date, eventdesc and left joins with all the dates in the date range so resultset contains user counts for all dates in the range for all events.
select
    d.dateInRange as dateval,
    eventdesc,
    nvl(td.dist_ucnt, 0) as dist_ucnt
from (
    select
        to_date('03-NOV-2011','dd-mon-yyyy') + rownum - 1 as dateInRange
    from all_objects
    where rownum <= to_date('31-DEC-2011','dd-mon-yyyy') - to_date('03-NOV-2011','dd-mon-yyyy') + 1
) d
left join (
    select
        currentdate,
        count(distinct(grauser_id)) as dist_ucnt,
        eventdesc
    from
        txn_summ_dec
    group by currentdate, eventdesc
) td on td.currentdate = d.dateInRange order by d.dateInRange ascThe query runs successfully on oracle returning the required result
Edited by: EJP on 30/01/2012 20:12: added {noformat}{noformat} tags on your behalf, to make your code legible.

ow006921 wrote:
I think the question is, why would you want to convert a complex query like that to Hibernate syntax? Hibernate is an application layer superimposed over SQL and JDBC, intended to simplify your coding and provide a more object-oriented interface, best suited to simple cases of table i/o. It does not improve upon or substitute for the power of SQL.
For something this complex, I would capture the SQL in a view or stored procedure on the database and call that from the client, either with Hibernate or straight JDBC.
Just my opinion.
Howard HydeYour opinion is very valid, but moot in this case. Upon my reply I expected one of two things:
- silence (what I got; the OP looks for an easier way to make someone else solve his problems)
- a second attempt at outsourcing work by posting something along the lines of "Please. I read the linked article but I couldn't figure it out. Can you please post some sample code?"
When you've been around this forum for a while, you learn to identify the people who don't have a real problem other than being lazy.

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Sven W. - I have been using your method all these days, which works just fine. i wanted to know how i could use a variable instead.
Business Requirement - My whole intent is to calculate the Age of an incident (Difference between "Reported Date" and current date) and to assign Age Groups (0-1 Days, 2-4 Days,....,20+ Days).
Edited by: 921713 on Mar 19, 2012 12:23 PM

Oracle query help

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I have enclosed sample data and also table structure. I need help in getting the query.
select dept_id,proc_code,override_goal,goal_override_date
from table2
where goal_override_date between '02-jan-2014' and '11-jan-2014'
   and dept_id = 10
   and proc_code = 'CP'
select DEPT_ID, PROC_CODE, DAY_SUNDAY, DAY_MONDAY,
       DAY_TUESDAY, DAY_WEDNESDAY, DAY_THURSDAY,
         DAY_FRIDAY, DAY_SATURDAY
from table1
where dept_id =10
and proc_code = 'CP';
Table1 is kind of maintenance table.
In Table2 values can be overridden.
Requirement
Check to see if there is data in table 2 for the date range . If table2 has no value then take value from table1 for that day the date falls into. Any more clarification please ask me.
Sundays are all zeros.
I want this data. and the sum for the date range.
2-jan-2014 - 3
3-jan-2014 - 3
4-jan-2014 - 3
5-jan-2014 - 0
6-jan-2014 - 1
7-jan-2014 - 3
8-jan-2014 - 5
9-jan-2014 - 5
10-jan-2014 - 3
11-jan-2014 - 3
Sum for the date range has to be 29
Sample table and data
CREATE TABLE TABLE1
DEPT_ID NUMBER NOT NULL,
PROC_CODE VARCHAR2(2 BYTE) NOT NULL,
DAY_SUNDAY NUMBER(4) NOT NULL,
DAY_MONDAY NUMBER(4) NOT NULL,
DAY_TUESDAY NUMBER(4) NOT NULL,
DAY_WEDNESDAY NUMBER(4) NOT NULL,
DAY_THURSDAY NUMBER(4) NOT NULL,
DAY_FRIDAY NUMBER(4) NOT NULL,
DAY_SATURDAY NUMBER(4) NOT NULL
Insert into TABLE1
(DEPT_ID, PROC_CODE, DAY_SUNDAY, DAY_MONDAY, DAY_TUESDAY,
DAY_WEDNESDAY, DAY_THURSDAY, DAY_FRIDAY, DAY_SATURDAY)
Values
(10, 'CP', 0, 3, 3,
3, 3, 3, 3);
COMMIT;
CREATE TABLE TABLE2
DEPT_ID NUMBER NOT NULL,
PROC_CODE VARCHAR2(2 BYTE) NOT NULL,
OVERRIDE_GOAL NUMBER(4),
GOAL_OVERRIDE_DATE DATE NOT NULL
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 1, TO_DATE('01/06/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 3, TO_DATE('01/07/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 5, TO_DATE('01/08/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 5, TO_DATE('01/09/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 3, TO_DATE('01/10/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 3, TO_DATE('01/11/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
COMMIT;
Help is highly appreciated.

SELECT dates,
       override_goal,
       SUM(override_goal) OVER()
       FROM(SELECT dates,
                   CASE WHEN EXISTS(SELECT 1
                                    FROM table2 t2
                                    WHERE t2.goal_override_date = qry1.dates
                                    AND t2.dept_id = 10
                                    AND t2.proc_code = 'CP')
                        THEN (SELECT override_goal
                              FROM table2 t2
                              WHERE t2.goal_override_date = qry1.dates
                              AND t2.dept_id = 10
                              AND t2.proc_code = 'CP')
                   ELSE (SELECT DECODE(days,'SUN',day_sunday,
                                            'MON',day_monday,
                                            'TUE',day_tuesday,
                                            'WED',day_wednesday,
                                            'THU',day_thursday,
                                            'FRI',day_friday,
                                            'SAT',day_saturday )
                          FROM table1)
                   END as override_goal
            FROM (SELECT in_dt1+(LEVEL-1) dates,
                         TO_CHAR(in_dt1+(LEVEL-1),'DY') days
                  FROM(SELECT TO_DATE(&from_date,'DD-MON-YYYY') in_dt1,
                              TO_DATE(&to_date,'DD-MON-YYYY') in_dt2
                             FROM dual)
                  CONNECT BY LEVEL <= (in_dt2 - in_dt1)+1) qry1);
Now run the query it will prompt you for the inputs. You can pass the date values and check the result. Otherwise replace &from_date,&to_date with user inputs

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