Question

I need to convert this SQL query to HQL

select
        * 
    from
        ( select
            routemaste0_.ROUTE_ID as col_0_0_,
            routemaste0_.ROUTE_CODE as col_1_0_,
            routemaste0_.START_PLACE_ID as col_2_0_,
            routemaste0_.END_PLACE_ID as col_3_0_,
            routemaste0_.IS_ACTIVE as col_4_0_,
            routemaste0_.LINKED_ROUTE as col_5_0_
        from
            OPRS_ROUTE_MASTER routemaste0_
            inner join OPRS_ROUTE_HALTS routehalts0_
                 on routemaste0_.route_id = routehalts0_.route_id
        where routehalts0_.PLACE_ID = '51'
        order by
            routemaste0_.ROUTE_ID ASC  )

I tried this way

SELECT    rm.id , 
          rm.routeCode , 
          rm.startPlaceId , 
          rm.endPlaceId , 
          rm.active , 
          rm.linkedRoute 
FROM      RouteMaster rm  
          INNER JOIN  rm.routeHalts AS rh 
WHERE     rm.id = rh.routeId  
          AND  rh.placeId = :PlaceId  
ORDER BY  rm.id  ASC

but not getting the expected result. My concern is i need the inner join on condition to execute.

Can some one help me

Answer 1

I think that the reason of problem can be that route_id is not a primary key in any of tables. Thats why I recommend you to try Theta style join in this case:

SELECT  rm.id , rm.routeCode , rm.startPlaceId , rm.endPlaceId , rm.active, rm.linkedRoute 
FROM RouteMaster rm, RouteHalts rh
WHERE rm.routeId = rh.routeId AND rh.placeId = :PlaceId  
ORDER BY  rm.id  A

And in your variant of HQL query you don’t need rm.id = rh.routeId part in where condition.