Hibernate Table Mappings

Question

Hi, does one have to map all tables appearing in a query ... Consider the following SQL query ...
SELECT m.force, m.surname, m.init, a.id, NVL(a.qualification_name_not_found, b.qualification_name) qual_name, q.qualcode, m.app_cde, r.description AS rank FROM locnavy.MEMBERS m, nlrd.QUALIFICATION_ENROLMENT a, nlrd.MASTER_QUALIFICATION b, JOB_QUAL_LNK c, RANKS r, JOB_QUALIFICATION q WHERE a.id = m.force AND r.rank_id = m.rank_cde AND a.qualification_id = b.qualification_id (+) AND a.qualification_id = c.qualification_id AND a.learner_achievement_status_id IN (2,32) AND c.job_qualification_id = q.job_qualification_id" AND q.qualcode != 'XXX' AND (m.mustering_cde = '" + mustCode + "' OR '"+ mustCode +"' IS NULL) AND (m.rank_cde = '" + rankCode+ "' OR '" + rankCode+ "' IS NULL) AND NVL(m.STATUS,'A') = 'A' AND m.app_cde IN ('MC','MG','MP','PE','PF','PV')
Note that joins are not used as this was written under Oracle 8i ... For the purpose of this query only MEMBERS object/POJO is used to contain the results, other tables appearing here i used to help retrieve the results.
QUALIFICATION_ENROLMENT MASTER_QUALIFICATION JOB_QUAL_LNK RANKS JOB_QUALIFICATION
In hibernate SQL/HQL query, would i need to have each table appearing here mapped? Is there a rule that all table joins must be mapped and appearing in hibernate.cfg.xml?
Edited by: jsunsnx on Jul 10, 2009 11:21 AM

Answer 1

dcminter wrote:
I have two queries because Hibernate does not support UNIONs so had to join two queries in a hast table to avoid duplicates Huh? You're doing SQL not HQL. SQL supports unions so there's no reason to avoid them. I think you're confused.
You might want to take this to the Hibernate forums: [http://forum.hibernate.org/|http://forum.hibernate.org/]
Oops thanks, no need to go there, was a silly thinking ..
@SuppressWarnings("unchecked")
public List findAllBySQL(String mustCode, String rankCode) {
     log.debug("finding all Member instances using native SQL");
     try {
          String queryString
               = "SELECT m.force, m.surname, m.init, a.id,"
                    + " NVL(a.qualification_name_not_found, b.qualification_name) qual_name,"
                    + " q.qualcode, m.app_cde,"
                    + " r.description AS rank"
               + " FROM locnavy.MEMBERS m,"
                    + " nlrd.QUALIFICATION_ENROLMENT a,"
                    + " nlrd.MASTER_QUALIFICATION b,"
                    + " JOB_QUAL_LNK c,"
                    + " RANKS r,"
                    + " JOB_QUALIFICATION q"
               + " WHERE a.id = m.force"
                    + " AND r.rank_id = m.rank_cde"
                    + " AND a.qualification_id = b.qualification_id (+)"
                    + " AND a.qualification_id = c.qualification_id"
                    + " AND a.learner_achievement_status_id IN (2,32)"
                    + " AND c.job_qualification_id = q.job_qualification_id"
                    + " AND q.qualcode != 'XXX'"
                    + " AND (m.mustering_cde = '" + ":mustcde" + "' OR '"+ ":mustcde" +"' IS NULL)"
                    + " AND (m.rank_cde = '" + ":rankcde"+ "' OR '" + ":mustcde"+ "' IS NULL)"
                    + " AND NVL(m.STATUS,'A') = 'A' AND m.app_cde IN ('MC','MG','MP','PE','PF','PV')"
               + "UNION"
               + " SELECT m.force, m.surname, m.init, a.id,"
                    + " NVL(a.qualification_name_not_found, b.milqual_qualification_name) qual_name,"
                    + " q.qualcode, m.app_cde,"
                    + " r.description AS rank"
               + " FROM locnavy.MEMBERS m,"
                    + " nlrd.MILQUAL_ENROLMENT a,"
                    + " nlrd.MASTER_MILQUAL_QUALIFICATION b,"
                    + " JOB_QUAL_LNK c,"
                    + " RANKS r,"
                    + " JOB_QUALIFICATION q"
               + " WHERE a.id = m.force"
                    + " AND r.rank_id = m.rank_cde"
                    + " AND a.qualification_id = b.qualification_id (+)"
                    + " AND a.qualification_id = c.qualification_id"
                    + " AND a.learner_achievement_status_id IN (2,32)"
                    + " AND c.job_qualification_id = q.job_qualification_id"
                    + " AND q.qualcode != 'XXX'"
                    + " AND (m.mustering_cde = '" + ":mustcde" + "' OR '"+ ":mustcde" +"' IS NULL)"
                    + " AND (m.rank_cde = '" + ":rankcde"+ "' OR '" + ":mustcde"+ "' IS NULL)"
                    + " AND NVL(m.STATUS,'A') = 'A' AND m.app_cde IN ('MC','MG','MP','PE','PF','PV')";     
          Query queryObject = getSession().createSQLQuery(queryString);               
          queryObject.setParameter("mustcde", mustCode);
          queryObject.setParameter("rankcde", rankCode);                               
          return queryObject.list();
     } catch (RuntimeException re) {
          log.error("find all by SQL failed", re);
          throw re;
}thanks guys ...