1. Using Min, Max and Count on HQL stackoverflow.comDoes hibernate HQL queries support using select min, max, count and other sql functions? like select min(p.age) from person p Thanks |
2. Select nvl(max(c.EmployeeId),0) in JPQL? stackoverflow.comI'm using oracle10g database and eclipselink, I need to obtain the last inserted key from the table so i've created this query |
3. Is it possible to select data with max value for a column using Criteria in Hibernate? stackoverflow.comLets say I have the following mapping: |
4. how do you get "real" sql distinct with hibernate criteria queries? stackoverflow.comI have a Hibernate criteria query that is incorrectly pulling out max results. In many cases, when I specify 20 max results, the query actually only returns 1 or 5 results, ... |
5. jpa 2 hibernate limit (max results) to a CriteriaQuery stackoverflow.commaybe it's a silly question but I cannot find the answer in the docs: How can set a limit to the CriteriaQuery using JPA2? Thanks |
6. HQL query for entity with max value stackoverflow.comI have a Hibernate entity that looks like this (accessors ommitted for brevity): |
7. Oracle/sql/jpa - With a year-span table, how do I select rows with max data (a column) from every 7 days? stackoverflow.comI have a table of the following columns: Timestamp(timestamp), data(integer), id1(integer), id2(integer) My user will be able to give three inputs, start date (normalized to Sunday), end date (normalized to Saturday), and a ... |
8. How do I rewrite this particular JPQL query with SELECT MAX() to CriteriaQuery? stackoverflow.comI am quite new to JPA and I have encountered a problem with understanding one particular query. I have rewritten in to the CriteriaQuery but the result and the query translated ... |
9. hql subquery with max timestamp stackoverflow.comI have a HQL query |
10. translating a TypedQuery to criteriaQuery (JPA 2.0) with max, min, group by and order by stackoverflow.com
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11. How to select max value from n number linked tuples stackoverflow.comI'm trying to select the max id from any n number linked tuples in a sql server db - we are writing an upgrade script for some data sets within an ... |
12. mysql query - optimizing existing MAX-MIN query for a huge table stackoverflow.comI have a more or less good working query (concerning to the result) but it takes about 45seconds to be processed. That's definitely too long for presenting the data in a ... |
13. Max date in an nHibernate HQL query stackoverflow.comI am having some difficultly writing an hql query that will search a table for all the rows where certain criteria are met but I only want to return the row ... |
14. MAX( ) in hibernate query coderanch.com |
15. JpA + select nvl(max(att),0) coderanch.com |
16. A simple JPA query made difficult with MAX ? java.netOne way might be to use a seperate query to return the max values and then find the Records matching those values. This can be done in a subquery such as: "SELECT record FROM Record record WHERE Id = (SELECT max(Id) FROM Record )" Of course, this should return records with only the max ID. You could order them by versionNumber ... |
17. SQL help on HQL with group by/ max function forum.hibernate.orgHi, Can someone help me on this problem i have... I'm using hibernate...and have a table named case_score_t with these columns: id, case_id, user_id, score, created_date I am interested in picking the rows with the greatest created_date, for a certain user_id. I have this SQL currently "SELECT cs FROM CaseScore cs WHERE cs.user.id = ? GROUP BY cs.c.id ORDER BY cs.created ... |
18. how to group by max(date)? forum.hibernate.orgI'm struggling to build a HQL query against a customer invoice table where I want to return a list of the most recent invoices for each customer but across all customers, like... Here's a sample full table... Code: [customer id] [invoice date] [invoice number] [invoice value] 1 ... |
19. Using MAX in the subquery of a LEFT JOIN forum.hibernate.orgI have a one to many relation between table A and table B, and I need to get the row with latest date <= now() from table B from within a LEFT JOIN's subquery. The hql query that I am using is returning all the dates and ignore my subquery in the WHERE clause, but when i translate the same query ... |
20. scalar query using max() not working forum.hibernate.orgHi, I want to retrieve the max value for a column and I followed the example code for scalar queries except for the (Object []) cast, I got a classCast exception without it. Now I am getting a null pointer exception. The message "Wierd. row is null" gets printed. I tried to run it with and without valid data in the ... |
21. Using aggregate function max(), min().. forum.hibernate.orgIterator results = sess.iterate( "select cat.color, min(cat.birthdate), count(cat) from Cat cat " + "group by cat.color" ); while ( results.hasNext() ) { Object[] row = results.next(); Color type = (Color) row[0]; Date oldest ... |
22. Problem with select max() forum.hibernate.orgI have the below HQL Query (with postgres) select up from UserPromotion up where up.user = :user and up.createTimestamp = (select max(u.createTimeStamp) from UserPromotion u where u.user = :user); Unfortunately, when translated, the SQL query becomes, select userpromot0_.id as id, userpromot0_.version as version, userpromot0_.credit as credit, userpromot0_.Promotion as Promotion, userpromot0_.user_info as user_info, userpromot0_.last_mod_by as last_mod6_, userpromot0_.last_mod_time as last_mod7_, userpromot0_.created_by as created_by, ... |
23. Criteria, Pagination and Number of Rows Available (Max Pgs) forum.hibernate.orgSince this isn't supported by default, I started doing some testing, and my suggestion isn't acceptable. Code: Session session = SpringSupport.getSession() ; long startTime = System.currentTimeMillis() ; mLogger.warn(Float.toString(this.secondsLater(startTime))) ; Criteria criteria = session.createCriteria(MyCustomObject.class) ; ... |
24. Finding max in HQL forum.hibernate.orgI am developing an application with Hibernate2.1.4 and JBoss-3.2.7. I want to write a query for finding a max value of a particular column in a table. How can I give this? Can anyone give me an example. I tried giving like the below: "select max(Settlement.SettlementPK.SettlementId) from Settlement" but it returns the all the data. I want only one row of ... |
25. Using Max whith CreateSQLQuery forum.hibernate.org |
26. NOOB: limiting the max results returned by a query? forum.hibernate.orgHi all, I'm just getting started with hibernate, and I am no DB expert... Anyways the basic question is: Given A Query may return say 1 million rows, retrieving all 1 million records into a list..is obviously going to be memory issue. so..should the query result in in that many matching records, how can I specify a max return size?, and ... |
27. select max not working with createSQLQuery forum.hibernate.orgStringBuffer sb = new StringBuffer(20); sb.append("select MAX(IFNULL("); sb.append(primaryKeyColumn.getName()); sb.append(", 0)) as maxPrimayKey from "); sb.append(tableName); Connection connection = session.connection(); PreparedStatement statement = null; ResultSet rs = null; int maxPrimaryKeyValue = -1; ... |
28. HQL Query on collection size & elements min-max values forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3 Name and version of the database you are using: 10g I am having problem to apply these 2 criterias (Collection's size & Collection elements' min-max) together. I can apply Collection-Size in HQL-Query, but unable to get it to work in Criteria. Also, applying the min-max on Collecion elements, ... |
29. Help: Projections.max forum.hibernate.org |
30. using the max(...) function with the Ast Query parser forum.hibernate.orgHibernate version:3.1 I am in the midst of migrating our application from the classic query parser to the ast query parser. One of the issues I am trying to solve is in regards to the max() function. In the classic query parser I could run the query: "select max(login) from UserLogin login" and I would recieve a UserLogin object back from ... |
31. Using HQL for "SELECT *, MAX(columnname) FROM tablename forum.hibernate.org |
32. Max of row count forum.hibernate.orgList l = q.getResultList(); em.getTransaction().commit(); Object[] os; Object o; try { os = (Object[])l.get(0); o = os[0]; logger.debug("The SELECT clause for this query had more than one element."); } catch(ClassCastException cce) { logger.debug("The SELECT clause for this query only had one element."); ... |
33. Max results in where clause for Query By Criteria in Java forum.hibernate.orgHello, I've been working with hibernate for a bit and was wondering how to transform the following query to Hibernate Query By Criteria in Java? Code: SELECT table1.* FROM table1 INNER JOIN table2 ON table1.field1 = table2.tbl1Field1 GROUP BY table1.field1 ORDER BY MAX(table2.numField); I've tried this: Code: Criteria myCrit = session.createCriteria(Table1.class); ... |
34. help : select max(userID) forum.hibernate.orgHi, I am new to hibernate. Could somebody please help me? Thank you very much. String hql= "select max(userID) from User"; List list = session.createQuery(hql).list(); int maxID = ( (Integer)list.get(0) ).intValue(); Error message: Exception in thread "main" java.lang.IllegalStateException: No data type for node: org.hibernate.hql.ast.tree.IdentNode +-[IDENT] IdentNode: 'userID' {originalText=userID} at org.hibernate.hql.ast.tree.SelectClause.initializeExplicitSelectClause(SelectClause.java:140) at org.hibernate.hql.ast.HqlSqlWalker.useSelectClause(HqlSqlWalker.java:702) at org.hibernate.hql.ast.HqlSqlWalker.processQuery(HqlSqlWalker.java:531) at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:645) at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281) at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229) at ... |
35. Pagination Large Result Set setFirst/Max vs. Scrollable forum.hibernate.orgHi All, I'm working on pagination with some large results sets (1M+) in DB2. My initial thought was that a scrollable result set would perform better than setting the first and max row. My thinking was that towards the end of the result set (first row = 100K max row = 50) DB2 would be sending me the first 100K rows ... |
36. Need help with HQL to find max collection size forum.hibernate.orgpublic class Physician extends IdEntity |
37. Max aggregate function not returning same type of argument forum.hibernate.orgimport java.sql.Timestamp; public class EventEntry { private String sender; private Timestamp lastEventTime; public EventEntry(String sender, Timestamp lastEventTime) { this.sender= sender; this.lastEventTime = lastEventTime; } ... ... |
38. Aggregate functions (max) forum.hibernate.org |
39. hql max of count forum.hibernate.org |
40. do select(*) with max number of results w/ Criteria api forum.hibernate.orgHi, For performance reasons, I want to limit the number of counted rows in a count(*) query. I can do this in sql as follows: select count(*) from (select id from USER u where ... limit 10000 ) as tmpResult I've been trying to do this using the Hibernate Criteria API but unfortunately I'm getting nowhere. Is such a simple thing ... |
41. HQL for retrieving an object with a max clause forum.hibernate.orgI have a table full of addresses. In this table, multiple copies of the same address or stored, but they become deprecated or considered old addresses. So what I need is the current address, and the current address is the one that has the highest ID [max(id)]. I'm trying to retrieve the object but I can't get the clause correct; something ... |
42. Hibernate Query, max results, etc forum.hibernate.orgHi. I am looking at using a hibernate query object for retrieving data from the database for use by a user interface. As such, I need the data paginated. The methods uery.setMaxResults and Query.setFirstResult look useful for this, but I do have a question: When Hibernate returns the specified result range, does it actually generate the native SQL that specifies the ... |