1. I can't understand HQL joins stackoverflow.comI'm starting to work with hibernate. I'm quite confused about HQL joins... they are really different from, say, mySQL joins... In fact if I have two tables like Parking and Auto ... |
2. Help with HQL Joins stackoverflow.comI have the following SQL which I can't work out how to convert to HQL.... |
3. Hibernate LeftOuter join HQL stackoverflow.comThis is my left joing hql query . After executing this code i am getting list size. But unable cast object to respective pojo class. |
4. Properly joining in Hibernate stackoverflow.comI have the following problem with Hibernate: I have got two classes: 1) Sprawozdanie |
5. HQL Join coderanch.com |
6. JOIN syntax for HQL . Need help! coderanch.comThanks, Edvins, I already read this reference, but the question remains. Mapping for table News News.hbm.xml |
7. HQL join for tables not related to each other coderanch.com |
8. outer join in HQL coderanch.comIs it possible in hibernate.In orinary sql we can write like "table A left outer join B on(A.user_Id=B.user_Id) but hibernate shows error in 'on'. using 'with' I may be able to add additonal join conditions.but I want to do a left join of 2 tables using userId.If it is inner join in where cluase it can be added.Does any one has ... |
9. Join using HQL coderanch.comHi, I have two tables: a1 and b2 in MYSQL. The structure for table a1 is column "identity"(int type) and column "name"(varchar type). The structure for table b2 is column "id"(int type),column "name"(varchar type) and column "name"(varchar type). Corresponding to these two tables i have to java classes: a1.java and b2. java. a1.java: public class a1 { private int identity; private ... |
10. Confusion in understanding one to Many HQL Join coderanch.com |
11. NullPointerException when joining in HQL coderanch.comHi, I try to run this query: select d.instrumentid, i.name, COUNT(*) as DealCount, SUM(volume) as Volume, MAX(price) as High, MIN(price) as Low from Deals d, EntityInstrument i where d.instrumentid = i.id and d.otc=1 and d.dealtime>='2010-03-18' and d.dealtime<='2010-03-19' group by d.instrumentid, i.name but I get this exception: java.lang.NullPointerException at org.hibernate.dialect.Dialect$3.getReturnType(Dialect.java:102) at org.hibernate.hql.ast.util.SessionFactoryHelper.findFunctionReturnType(SessionFactoryHelper.java:382) at org.hibernate.hql.ast.tree.AggregateNode.getDataType(AggregateNode.java:21) at org.hibernate.hql.ast.tree.SelectClause.initializeExplicitSelectClause(SelectClause.java:143) at org.hibernate.hql.ast.HqlSqlWalker.useSelectClause(HqlSqlWalker.java:705) at org.hibernate.hql.ast.HqlSqlWalker.processQuery(HqlSqlWalker.java:529) at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:645) ... |
12. HQL join syntax coderanch.comYeah, sorry. What I posted focuses on what's in the DB rather than the actual Model. Maybe that's my blind spot with HQL, I gravitate to thinking about the DB rather than the Model. The actual fields in Customer are along the line of: @Required @ManyToOne(cascade = {CascadeType.REFRESH,CascadeType.MERGE,CascadeType.PERSIST}) @JoinColumn(name = "ownerId") public Owner owner; @ManyToOne(cascade = {CascadeType.REFRESH,CascadeType.MERGE,CascadeType.PERSIST}) @JoinColumn(name = "locationId") public ... |
13. HQL Join forum.hibernate.orgpublic class Item implements Serializable { private Long id; private String name; private ItemBrand item_brand; .... @ManyToOne(targetEntity=ItemBrand.class) @NotFound(action=NotFoundAction.IGNORE) @JoinColumn(name="item_brand") public ItemBrand getItem_brand()... public void setItem_brand(ItemBrand item_brand)... } public class ItemBrand implements Serializable { private Long id; private String item_brand; ... |
14. HQL Outer join in unrelated Tables forum.hibernate.org |
15. HQL join, on users who haven't preformed an action forum.hibernate.org |
16. HQL; how to join over a MapKeyManyToMany forum.hibernate.org |
17. joins in hql forum.hibernate.org |
18. HQL Join ? forum.hibernate.org |
19. How to do this outer join in HQL? forum.hibernate.orgI need to do the following outer join in HQL, select req.*, e1.empName, e2.empName from request req, employee e1, employee e2 where req.codition=? and req.requestorId = e1.empId(+) and req.requesteeId = e2.empId(+) My original query is from Request req, Employee e1, Employee e2 where req.condition=? and req.requestorId = e1.empId and req.requesteeId = e2.empId This is to display the details inluding requstor and ... |
20. joins in HQL forum.hibernate.org |
21. confused about join in hql forum.hibernate.orgCan someone give me a brief explanation about join in hql? I can't understand it after reading the documentation. All I can get is join is used to give alias for property on an entity. I can't understand what's the different between join, left join, right join and full join. And, is it similar to join in sql? All I know ... |
22. Help:about outer join in HQL forum.hibernate.org |
23. Outer Join in HQL please guide forum.hibernate.org |
24. outer joins in HQL forum.hibernate.org |
25. HQL and join, wrong comparison forum.hibernate.org |
26. arbitary outer joins in HQL are not possible... forum.hibernate.orgSELECT t2.column_c, t1.column_g, case when t4.column_h is null then 0 else column_h end column_h_alias FROM table_one t1 INNER JOIN table_two t2 ON t1.column_c = t2.column_c INNER JOIN table_three t3 ON t3.column_b = t1.column_a LEFT JOIN table_four t4 ON t4.column_d = t2.column_d AND t4.column_a = t3.column_a WHERE t1.column_a = ? AND column_e = ? AND t3.column_a=? |
27. HQL Outer Join Trouble forum.hibernate.orgNewbie Joined: Tue Nov 09, 2004 3:09 pm Posts: 9 Hibernate version: 2.1.4 Mapping documents: |
28. Wrong join execution in hql forum.hibernate.orgI have the problem, that I want to use a left join on two tables. The two tables are 1..1 related. In my case this means left table (routinginformation) has all possible internal ip addresses. In the second one I have all used hosts with their reference to the routing table. And this is clear: not all routings maybe occupied by ... |
29. HQL JOIN two tables forum.hibernate.orgThanks for replying. Here are my mappings, though if I am hearing you right I need to have the "JOIN" columns named the same in both tables (which I don't), and I cannot rename the columns. I will make a suggestion to the hibernate to include that in the documentation in Chapter 11.3. So now my question would be now do ... |
30. Outer join in HQL forum.hibernate.orgI am assuming you have a relationship defined for them (since there is or you would not have joined them (one-2-one). select A,B from BeanA as A left outer join A.beanB as B but you could drop the select A,B [and as B] so its starts with the from since you can get B from A. Since it s a one-2-one ... |
31. NPE on |
32. HQL joining tables forum.hibernate.orgNewbie Joined: Mon Jan 02, 2006 9:10 am Posts: 10 Hi all! Im pretty much a newbie and are having problem with a table join involving |
33. Join in HQL forum.hibernate.org |
34. error creating HQL for joined table forum.hibernate.orgI am trying to search for an object by creating HQL. I need to search for an attribute which is mapped using a |
35. HQL join with subselect? forum.hibernate.orgselect p, pt from Person p inner join p.parkingTickets as pt with startDate <= pt.postedDate and pt.postedDate <= endDate group by p having pt.postedDate = max(pt.postedDate) |
36. need help with outer join with HQL forum.hibernate.org |
37. HQL Join forum.hibernate.orgHi, The answer is yes. I don't claim to be an expert, but I don't understand the reason for the sub-select in your SQL. You are selecting everything from the table in your sub-select, which should be no different than just joining on the table: SQL: Code: SELECT item.itemId, item.description, item.defaultDescription, t.translatedDescription FROM tblItem item LEFT OUTER JOIN tblItemTranslation AS t ... |
38. Help needed with HQL Joined Vieiw on same table forum.hibernate.orgI am attempting to write an Oracle query in HQL which is basically a joined view on the same table. I can generate the queries on the database using SQL in TOAD and they work fine, but I am finding it impossible to write the correct HQL query for use in Hibernate. The query in SQL run through TOAD looks like ... |
39. using joins in HQL forum.hibernate.orgselect new packageName.SomeClass( a.x, b.y ) from AVO a, BVO b where a.z = b.z and a.m = 12 |
40. HQL join of three tables forum.hibernate.orgHi All, Iam using hibernate along with spring framework to fetch a list using Hibernate HQL joins. And my code is... List list1=new ArrayList(); List lst=getHibernateTemplate().getSessionFactory().openSession().createQuery("select c.codeId,c.codeName,cd.codevalueid,sd.displayname from Code as c join c.codeValueSet as cd join cd.surveySet as sd").list(); Iterator iter = lst.iterator(); while (iter.hasNext()) { System.out.println(iter.toString()); Object[] obj = (Object[])iter.next(); System.out.println("long value is"); Code c = new Code(); c.setCodeId((Long)obj[0]); c.setCodeName((String)obj[1]); ... |
41. Outer Joins using HQL forum.hibernate.org |
42. HQL outer join forum.hibernate.org[b]Hibernate version:3.1[/b] Hello all. I need to build a HQL query that performs an outer join between two non associates entities. I just want to reproduce the following sql query in HQL: select table_a.id as col_0, table_b.score_1-table_a.score_1 as col_1, table_b.score_2-table_a.score_2 as col_2, table_b.score_3-table_a.score_3 as col_3, table_b.score_4-table_a.score_4 as col_4 from p_audit as table_a left join p_audit as table_b on (table_a.join_id=table_b.join_id and table_b.filter_id=6) ... |
43. FAQ says HQL ignores outer-join settings, but WHY? forum.hibernate.orgH2 behaviour was the same. It was a design decision that in my view is 100% correct. It allows great flexibility in defining the load behaviour in the query. I have a preference to define little in the HBMs and control load behaviour with the queries. This only applies to HQL. Use Critera queries if you want it to apply. |
44. Incorrect HQL join forum.hibernate.orgAuthor Message funkyman2000 Post subject: Incorrect HQL join Posted: Tue Apr 03, 2007 4:51 am Newbie Joined: Tue Apr 03, 2007 4:35 am Posts: 1 Hi folks! I'm trying to create a HQL join but hibernate (3.2.1.ga) creates wrong SQL. I wanna join the customer table with the address table using a 1 to n relationship. The primary key ... |
45. HQL with multiple join? forum.hibernate.orgcan i have something like this? A, B & C is tables that i wanted to join. column a1, & a2 belongs to table A. column b1 belongs to table B. column c1, c2, c3 belongs to table C. Code: list = session.createCriteria(A.class) .add(Restrictions.eq("a1", no)) .add(Restrictions.eq("a2", name)) .setFetchMode("B",FetchMode.JOIN) .add(Restrictions.eq("b1", venId)) .setFetchMode("C",FetchMode.JOIN) .add(Restrictions.eq("c1", new Boolean(false))) add(Restrictions.eq("c2", IXConstant.STATUS_ACTIVE)) .add(Restrictions.eq("c3", spCatSelected)) .list(); The mapping ... |
46. HQL outer joins not working forum.hibernate.orgNewbie Joined: Tue Jul 03, 2007 7:34 am Posts: 2 Hello, Im workign on a HQL statement, where the working sql looks like: Code: SELECT DISTINCT(st.statusid) , st.fileid , st.refcd ... |
47. How to join muiltitable, more than four tables use hql forum.hibernate.org |
48. 5 Tables 3 table join incorrect HQL forum.hibernate.orgAuthor Message mcaughey Post subject: 5 Tables 3 table join incorrect HQL Posted: Thu Sep 11, 2008 12:27 pm Newbie Joined: Thu Oct 26, 2006 11:50 am Posts: 17 Location: Chesterfield, VA Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.1 Mapping documents: ########## Student Code: |
49. Confusion in understanding one to Many HQL Join forum.hibernate.orgjava.lang.NullPointerException at Git.processRequest(Git.java:53) at Git.doGet(Git.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:627) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) ... |
50. HQL for a outer join fails forum.hibernate.orgNewbie Joined: Mon May 18, 2009 6:00 pm Posts: 3 My HQL for a outer join fails: "select p.postalCode from Person p outer join p.Address a" The exception is: org.hibernate.QueryException: could not resolve property: Address of: com.Person AS p left join p.Addresss AS a The join is for the primary keys in each table contact_id My ORM.xml looks like this: Code: ... |
51. How to achieve outer join operator(+) in HQL? forum.hibernate.orgDear all, The two tables employee and customer have not explicate association (by FK and PK). In Oracle SQL, we can use the operator (+) as follows for an outer join. For example, SELECT * FROM employee, customer where employee.name = customer.name(+) However, HQL does not support this outer join operator. How can we translate the above SQL select to HQL? ... |