1. how to write join query in hibernate stackoverflow.comI have created two beans User and VirtualDomain with many to many relationship |
2. Hibernate Join with OR clause stackoverflow.comI'm trying to figure out how to generate a simple join that uses an 'or' clause contained within it, using HQL or Hibernate annotations. Here is an example of what I ... |
3. Problem with Hibernate join query stackoverflow.comI have a problem with writing a join query in Hibernate although I can write it in sql. It looks like this: |
4. HQL join: finding Users friends who haven't preformed an action (Which is better?) stackoverflow.comI'm looking to display users friends who haven't preformed certain actions. E.g borrowed a book, bought a book. When a user buys/reserves to the book a row is recorded, So i need a ... |
5. Hibernate Query Problem stackoverflow.comI am using Hibernate. My database is as follows A Category has many attributes class category contains |
6. hibernate query stackoverflow.comI'm trying to carry out the following query using hibernate's construct SQL query: |
7. Hibernate HQL Query Subselects or Joins stackoverflow.comIn a custom blog platform with User(s), Post(s), and Message(s). I know how to do an HQL query with distinct Users and their Post count. Also distinct Users and their Message count. But ... |
8. How can I join with a SQL view in a Hibernate query? stackoverflow.comI have created a SQL view that calculates a function of two table rows. I want to use the view to limit the output of a hibernate query, but am ... |
9. JPA2 Criteria Query JOIN stackoverflow.comI have following class ( entity ) |
10. Custom Join Clause For Hibernate Many To One stackoverflow.comIs it possible to tailor the query that hibernate executes when retrieving associations for a given entity? More specifically I would like to add an extra condition to a join clause ... |
11. JPA Multiple Queries on join stackoverflow.comIn this specific scenario, say I have a couple of tables {A,B} and their generated JPA classes. There is a FK relationship on a column X from Table A -> Table ... |
12. How to add a "on" clause on hibernate criteria? stackoverflow.com |
13. Join in Hibernate Query stackoverflow.comI have classes: |
14. using join query in hibernate coderanch.comhi i cant get multiple column values by using the foll. query. supplierList=sess.find("select a.id,a.desc,from groupAccount a in(b.msupplier,b.mnumber from supProduct b where a.id=b.supcode)"); when i am using this query in sql directly, i got the answer. but in session, i cant get the result. i think i should use the join query or subclass query. if anybody knows ,give that concept. when ... |
15. HQL join query not executing coderanch.comI have 3 tables user_master : contain with user_id, user_name group_master : contain with group_id, group_name user_group : contain with user_group_id, group_id, user_id SQL statment : select a.user_group_id, b.group_id, b.group_name from user_group a left outer join group_master b on b.group_id=a.group_id; but when i am using HQL is not execute what i did the mistake? please let me know public class GroupMasterPojo ... |
16. Problems with Hibernate HQL Join Query forum.hibernate.orgHi All, I'm working on a Struts Application that uses Hibernate. I'm just learning Hibernate and I'm having some trouble getting things to work. In the end I'm trying to execute the HQL equivalent of the following SQL: Code: SELECT D.DEFECTID, D.DESCRIPTION, P.DESCRIPTION as Priority, D.REPORTDATETIME as ReportDate, SF.USERNAME as Reporter, FA.AreaName as FunctionalArea, S.Description ... |
17. How to join a select ? forum.hibernate.orgHello, I have a problem for generate a criteria query, and even in HQL i don't knwo how to do it. I have a table Action (#ActionId, ActionDate, ActionGroup), and the associated class ActionVO (AcnId, AdnDate, AcnGroup) I want to retrieve the last action of each group. So in sql should be something like: SELECT A.* from Action A JOIN (select ... |
18. select with joins (+) forum.hibernate.org |
19. Hibernate Query - joins - howto? forum.hibernate.org |
20. queries with joins forum.hibernate.orgHello, I have a query I have written in SQL that I can't figure out how to translate into HQL properly. I have a main table (PACKAGE) that is left-joined to two tables (IMAGE and EMAIL). The object modelling for this is that a Package object contains a collection of Image objects and a collection of Emal objects. The goal is ... |
21. join in scalar query forum.hibernate.orgHi, Is there a way to force the implicit use of "left outer joins" in scalar queries? For example, if I have this query: "select cat, cat.mate.name from DomesticCat cat" the result set won't contain cats that do not have mates. But what I want is to have null returned as the mate's name, when the cat doesn't have a mate. ... |
22. How to do two joins in same query? forum.hibernate.orgI'm trying to join MpLote with Mp and ArmazemMp in the same query. As the mapping file shows, MpLote has a "many-to-one" relation with Mp and a "one-to-one" relation with ArmazemMp. I've tried diferent ways but it keeps giving me: Code: net.sf.hibernate.QueryException ( ... ) Can someone please help me on this? ------------------ Testing Code ------------------ Code: ( ... ) SessionFactory ... |
23. Wierd stuff creating a query with many joins forum.hibernate.org |
24. 3 joins instead of a plain select forum.hibernate.orgGavin, i remember that iterate() method is hitting the cache and find() & list() does not. If we're deploying the app - first without a cache system, list & find are better - but if we decide later to "plug" a cache, we have to recode all the list() & find() to iterate() to take advantage of cache. Am i right? ... |
25. Why multiple selects instead of a join? forum.hibernate.orgI have a two tables, basically a parent table and a child table. I want the parent object to contain a set of child ids as opposed to references to the child objects themselves. I feel I set this up propertly in the hbm.xml file (see below). However, when I access all the parent objects I see that hibernate executes a ... |
26. The problem about Join clause forum.hibernate.orgI fell in trouble using Hibernate about "Join" clause, it bother my development plan very much. here is a example 1) SessionFactory sessions = conf.buildSessionFactory(); 2) Session s = sessions.openSession(); 3) Transaction t = s.beginTransaction(); 4) select new UserInfo(c.name,a.account,c.custId) from CustomerDto as c left outer join AccountDto a 5) list = s.find(sql); ... when the program run at line 5), it ... |
27. Simple join query forum.hibernate.org |
28. SELECT query with JOIN. forum.hibernate.org |
29. How to give a Simple Join Query forum.hibernate.orgHi, I am trying to join 2 tables with the following query:- select person.first_name from RefPerson person inner join RefTruck truck where truck.modify_person_num = person.person_num and truck.modify_person_num = '1' Schema of the classes is as follows:- RefPerson:- CREATE TABLE [dbo].[REF_PERSON] ( [person_num] [TPT_Num] NOT NULL , [first_name] [TPT_Name] NOT NULL , [last_name] [TPT_Name] NOT NULL , [middle_name] [TPT_Name] NULL , [person_initials] ... |
30. Additional Criteria in the JOIN Clause forum.hibernate.orgHi, how can I do the sql query below with hibernate? select * from project p right outer join project_date pd on p.idproject = pd.idproject right outer join date_type t on (pd.idtype = t.idtype and pd.idproject = ?) I looked on Creteria and SQL Query with hibernate...but I could not find a solution for this. If anyone could point the solution ... |
31. HQL JOINs resolved in too many SQL queries forum.hibernate.orgHi, all I've just started to use hibernate and I appreciate it's power, but now I've a big trouble. I've already read all possible messages inside this forum and available documentation, and now a big wall is just in front of me. I defined an HQL query that join several tables (it's a simple multiple join query as always I used ... |
32. indices in Join queries forum.hibernate.orgI am trying to join the key part of a Map collection in a query, but the sql generated always seems to create a join condition using the value column and not the key. Is there any way to force the join condition to work of the key rather than the value |
33. Is it possible to add criteria to join clause? forum.hibernate.orgI have following tables and corresponding classes with appropriate get/set methods for all fields. ITEMS ID ORDER ID ITEM_ID CUSTOMER_ID class Item{ privater long id; private Set orders; ... } class ORDER{ privater long id; private Item item; private long customer_id; ... } Could anyone suggest a HQL query that selects all items that have no orders for given customer_id? SQL ... |
34. [newbie] doubt in implementing QUERY which uses JOIN forum.hibernate.orgnet.sf.hibernate.hql.QueryTranslator - compiling query net.sf.hibernate.QueryException: outer or full join must be followed by path expression [ Select d.PageName, d.IllustrationID, d.PageUID FROM com.toro.enterprise.oag.base.v1_0.tblPage4Pub.Page4Pub c INNER JOIN com.toro.enterprise.oag.base.v1_0.tblPage.Page d on c.PageID = d.PageUID] at net.sf.hibernate.hql.FromParser.token(FromParser.java:166) at net.sf.hibernate.hql.ClauseParser.token(ClauseParser.java:87) at net.sf.hibernate.hql.PreprocessingParser.token(PreprocessingParser.java:123) at net.sf.hibernate.hql.ParserHelper.parse(ParserHelper.java:29) at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:149) at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:138) at net.sf.hibernate.impl.SessionFactoryImpl.getQuery(SessionFactoryImpl.java:293) at net.sf.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:1561) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1591) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1581) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1573) at src.DrawingTest.main(DrawingTest.java:72) |
35. Criteria queries and joins forum.hibernate.org[b]Hibernate version:[/b] 2.x I'm having a lot of difficulty working out how to do joins using criteria queries. My understanding of criteria queries is that when you call createCriteria(class), the class you give it is the persistant class that you want the data to be returned as an instance of. I want to do a query that returns a list of ... |
36. Join queries forum.hibernate.orgHi I have problem when i use join queries let me state with simple example i have something like this in my database Table1 which has columns as : id,name Table2 which has columns as : id,address values in Table1 are as follows: 1001 Hibernate values in Table2 are as follows: 1001 Gavin King k normally when i need to query ... |
37. join selects forum.hibernate.orgHi I've just started learning Hibernate on my own, and I think I already understand the basics. I've seen how to map the tables to POJO's where you can access the properties of the resulting objects with set/get methods. But there's something I havent been able to find: when you implement a select with joined tables. For example the simple case: ... |
38. How to use joins in HQL queries forum.hibernate.orgOuter Joins and Explicit Fetching Generally, one of the best way to improve performance is to limit the number of trips to the database. Hibernate has a number ways its handles the N+1 issue. Associations can be explicitly flagged for outer join fetching (via outer-join="true"), and you can add outer join fetching to HQL statements. For example... /** * @hibernate.many-to-one column="gold_claim_id" ... |
39. the need for "join" in queries forum.hibernate.orgHibernate version: 2.1.7 Hi, Is it possible to write a query in hibernate like, "from Parent parent where parent.child.age=3" and even "from Parent parent where parent.children.age=3" where I assume that parent entity has a composite-element list of child, children. or we need to explicitly write the join. "from Parent p join p.Child child where child.age =3" if JOIN is necessary, I ... |
40. join query(hql-sql conversion) problem forum.hibernate.orgHibernate version:2 oracle9i it is not generting SQL I am trying execute join on using HQL. The background is: I have 2 tables ERROR_HIST and DEVICE_READINGS, where DEVICE_READING KEY is a foriegn key in ERROR_HIST and primary key in DEVICE_READINGS. It is one-many relationship between DEVICE_READING and ERROR_HIST My sql is : select eh.* from error_hist eh,device_readings dr where eh.DEVICE_READING_KEY=dr.DEVICE_READING_KEY AND ... |
41. Does join fire less queries than not using joins at all? forum.hibernate.org |
42. two joins in single query with hibernate forum.hibernate.org |
43. Criteria Query adding unwanted join forum.hibernate.orgNewbie Joined: Mon Aug 29, 2005 1:14 am Posts: 10 Hibernate version: 3.0.5 Mapping documents: (see below) Full stack trace of any exception that occurs: (see below) Name and version of the database you are using: postgresql 8.0 The generated SQL (show_sql=true): (see below) I'm trying to use org.hibernate.criterion.DetachedCriteria to generate a query. The class/table I want to query (Report) has ... |
44. Optimising Query (how to use Join?) forum.hibernate.orgHi guys! I have little question concerning using of the join operation. I have two classes: DeliveryTariff and CountryGroup CountryGroup is very simple and looks like: ID | name | country ____________________ 0 DHL-EU DE 1 DHL-EU FR 2 DHL-EU UK 3 GLS-EU DE 4 GLS-EU BE .... DeliveryTariff allways depenends on exactly one CountryGroup: ID | name | country_grop |price ... |
45. create a query using JOINS with OR clause forum.hibernate.org |
46. how to write criteria query with join for unassociated entit forum.hibernate.orgHey fuzebest I have got nearly the same problem. I my design I associate classes via id like: class Item id:Long name:String class Bid id:Long itemId:Long amount:BigDecimal Where the Bid::itemId is a foreign-key to Item::id in database. My problem is how do I/ can I make a serch criteria which joins the two classes? Something like? List result = session.createCriteria(Bid.class) .createAlias("items", ... |
47. Hibernate issuing mulitple selects after join forum.hibernate.orgHi, I have created a simple one-to-one mapping and after issuing the correct hibernate-generated SQL involving a JOIN, it starts issuing single selects for each and every ID in the table. I have done the same thing with other classes, the only difference being that the identifying column names are different in this case, and it worked fine (i.e. only the ... |
48. Join Query sample forum.hibernate.org |
49. Criteria queries: using subselects instead of joins forum.hibernate.orgHibernate version: 3.1.2 There doesn't seem to be any way of performing a criteria query similar to: Q1: from Parent p where exists(from p.children c where c.shoesize >= 10) The closest I can get is: Criteria crit = session.createCriteria(Parent.class); Criteria subCrit = crit.createCriteria("children"); subCrit.add(Expression.ge("shoesize", 10)); crit.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY); but that's not quite the same, it's more like: from Parent p join p.children c ... |
50. Problem with Hibernate query(join) forum.hibernate.orgI am having two tables Entry and Task. Entry and Task are having 1 to many relationship. Now I want to fetch a data from Entry and Task in such a way that in the result list I get only one row, means all records from Entry table and only one record from Task table with earliest REG DATE. for Example: ... |
51. HQL Selection through |
52. Problem with Join Queries in Hibernate forum.hibernate.org |
53. Multi-level join using criteria query forum.hibernate.orgI am trying to confirm the syntax for a multi-level join using criteria query (all examples I have seen so far are for a single join). I am writing a forum application, where one forum contains multiple threads and one thread contains multiple posts. Given a forum id, I would like to write a criteria query which returns the forum along ... |
54. Transforming SQL query into HQL and self join forum.hibernate.org |
55. Hi Freinds,Problem in simple Join query forum.hibernate.orgHi intimate2talent, Represents an association fetching strategy. This is used together with the Criteria API to specify runtime fetching strategies static FetchMode DEFAULT Default to the setting configured in the mapping file. static FetchMode EAGER Deprecated. use FetchMode.JOIN static FetchMode JOIN Fetch using an outer join. static FetchMode LAZY Deprecated. use FetchMode.SELECT static FetchMode SELECT Fetch eagerly, using a separate select. ... |
56. HQL/ JPA-QL Query Tuning: How to enforce the join order forum.hibernate.org |
57. Joined secondary select forum.hibernate.orgHibernate version: 3.2.3 Mapping documents: @Entity @Table(name = "bien") @Inheritance(strategy = InheritanceType.JOINED) public abstract class Bien extends AbstractPOJO { .... protected Ubicacion ubicacionPorDefecto; protected UnidadMedida unidadMedida; .... @ManyToOne @JoinColumn(name = "id_ubicacionpordefecto") @org.hibernate.annotations.ForeignKey(name = "fk_bien_ubicacion") public Ubicacion getUbicacionPorDefecto() { return ubicacionPorDefecto; } @ManyToOne @JoinColumn(name = "id_unidadmedida", nullable = false) @org.hibernate.annotations.ForeignKey(name = "fk_bien_unidadmedida") public UnidadMedida getUnidadMedida() { return unidadMedida; } } @Entity @Table(name ... |
58. HQL: Join onto Select View forum.hibernate.orgSELECT phraseSearchSummary.phrase FROM PhraseSearchSummary AS phraseSearchSummary WHERE phraseSearchSummary.phrase IN (SELECT innerPhraseSearchWord.phrase FROM PhraseSearchInventoryWord AS innerPhraseSearchWord WHERE innerPhraseSearchWord.word.word IN (:words) GROUP BY innerPhraseSearchWord.phrase HAVING COUNT(*) = :numberOfWords) |
59. Join vs many selects forum.hibernate.orgI always learned that the more select statements you have, the slower your app will work. Now I have done a few tests on the project I am currently working on and it amazed me that 100 selects runs almost twice (and probably scales higher as it grows) as fast as a big join query. This happens when there are alot ... |
60. Join Select forum.hibernate.org |
61. How do I write query without joining? forum.hibernate.orgHi, If you choose data from one table (schools in your case) using information from another table (teacher's salary in your case) you always will get join or use nested queries (until you already have your list of teacher's ids). IMHO you can: 1) leave it as it is (good choice); 2) reformat HQL to use subquery; 3) denormalize tables to ... |
62. HQL join query set. forum.hibernate.orgHi, I am new to hibernate and have a question. Its a simple one but dint find answers anywhere. I do a join and select 6 fields. The thing is that it goes on to the inner level. "select distinct " + "sc.componentVersion.component.name as cname, sc.componentVersion.component.description " + ",sc.componentVersion.version, sc.componentVersion.description " + ",sc.componentVersion.component.group.name, sc.componentVersion.component.group.description " + "from Stack as s join ... |
63. HIbernate Join query in Criteria forum.hibernate.orgHi There is a join between two table in my program. So i can use criteria.createAlias(); This is working. Now i don't have any join between two tables in other case. now i need to retrieve data in search module. so i tried like the following code getSession().createCriteria("dao.com.model.Staff")setFetchMode("dao.com.model.Renew", FetchMode.JOIN) When i tried to access Renew field i got could not resolve ... |
64. Criteria queries with many-to-many joins forum.hibernate.orgHello, I'm having a hard time figuring out the correct way to configure a criteria query and I'm hoping someone can help me out or point in the right direction. The annotated classes are below, but basically I have two entities: Account and ChartReview. A ChartReview has many reviewers (accounts) and an Account can have many ChartReviews. I'm trying to figure ... |
65. Using "order by" with multiple joins, multiple sor forum.hibernate.orgBeginner Joined: Sun Oct 14, 2007 7:29 pm Posts: 23 Hello, I have the following HQL query text with multiple joins and several order criteria: Code: select usrprof from Usrprofiles as usrprof, Compmsgs, Usrmsgs left join fetch usrprof.compdatas as comps left join fetch usrprof.usrmsgses umsgs left join fetch comps.compmsgses compmsgs where (usrprof.username='johndoe' and compmsgs.viewed=false and umsgs.viewed=false) order by comps.companyname asc, compmsgs.logdate ... |
66. Problem with Join Query forum.hibernate.orgNewbie Joined: Thu Jan 24, 2008 1:35 am Posts: 9 Hello, I have the query below which returns a collection "Objects" instead of "Group". Any ideas on what I maybe doing wrong? When I look at the returned objects in a debugger, its actually an array containing 1 Group and 1 GroupRole object. Code: Session ... |
67. Specify order of joins in HQL forum.hibernate.orgHi I am using Hibernate 3.2.4 on oracle 10. I am trying to force order of joins in hql but with no sucess. i have following objects and relationships: Instrument CurrentPricing Currency Instrument has many currentPricings (set) and currentPricing object has single currency object. I would like to create query that searches instrument by code and eagerly loads currentPricings and currency. ... |
68. HQL join clause and WITH forum.hibernate.org |
69. hql join query forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.0 Mapping documents: Document.hbm.xml |
70. hibernate, join query using criteria forum.hibernate.orgHello, someone can help me ..... with Hibernate, criteria and join..... I have two tables, one is called the Resource and the other ResourceAttribute. Table ResourceAttribute there is a field that matches idResource to their incremental resource table. For example: Resource Table id title private 1 test1 0 2 test2 0 Table ResourceAttribute id idResource name .. ......... .... 10 2 ... |
71. Determine if Criteria will produce a query with joins forum.hibernate.orgDoes anybody know of a reliable way to determine if a Criteria's query plan will contain joins? I can use the CriteriaImpl.iterateSubcriteria to check for the existence of a sub-criteria, but there's also a scenario in which there are associations with a JOIN-based FetchMode, which can be specified at runtime or in the SessionFactory config. I would like to be able ... |
72. HQL Join query forum.hibernate.orgThanks a lot guys, but the thing is, I desperately need the null values (no way I do select from x,y where x = y) and there's no relationship ;-) I'll explain what's going on, why I can't have a relationship: I've got a table with records - month / year / value / category. And I need to get e.g. ... |
73. simple scalar select join not working forum.hibernate.orgHi, I have a Chapter and Book bean. The Chapter has a many-to-one mapping to book as follows: |
74. Multiple queries instead of JOIN forum.hibernate.org |