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Hibernate Update Query



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update primary key in hibernate
hai friends, i have table with four columns as primary key i want to update one of these columns how can i do this in hibernate? please help me . 

need more info
Hi , Its not working for me. On running code its giving me exception following is the output:- log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment). log4j:WARN Please initialize the log4j system properly. Hibernat 

Small Clarification
How do we update two rows or more than one row at a time ? 

hibernate
Can someone explain me this line Insurance ins = (Insurance)sess.get(Insurance.class, new Long(1));  

Need Explanation..
Hi, Can any one please explain the line Insurance ins = (Insurance)sess.get(Insurance.class, new Long(1)); Where are we setting the 'insurance' object to 'sess' object, need more clarity on this line of code. Thanks, Ravi. 

WARNING: /hibernate.cfg.xml not found
Hi, I can not run this example it show me the warning like WARNING: /hibernate.cfg.xml not found 

not getting the data inserted into the database.
i'm not getting any error. still the value is not getting inserted inside database. The netbeans log is attached. init: deps-jar: compile-single: run-single: log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment). log 

Please anyone explain the below lines, line wise
SessionFactory fact = new Configuration() .configure().buildSessionFactory(); sess = fact.openSession(); Transaction tr = sess.beginTransaction(); Insurance ins = (Insurance)sess.get (Insurance.class, new Long(1));  

HQL problem
I always use HQL in Hql editer for testing perpeses. But i want to know, How to use this editor in our Hibernate applicaions. 

date format conversion
Hi, i am using Hibernate Query Language (hql). i want to change the date format while inserting and selecting. Date format conversion are DataBase dependent. So u help me out in finding any Date format conversion function which will be dataBase ind 

Hipernate update example
how to update already existing child object when parent object changed... (This is one to many relations) 

Doesn't work properly
This is the most valueble tutorial but it is not clear....  

Nice...
This very simple tutorial, if u have any error, trust me, mybe your error comes from your mistake....i have try and it's ok..... 

redundant code
the line sess.update(ins); does not have to be there 

Ugly report exception
Is not good idea, print error message to standart output. If you needed, use System.err.println, please! 

Changes
I have done the following changes to the code: Transaction tx = session.beginTransaction(); after session = sessionFactory.openSession(); and tx.commit(); after session.save(contact); and then it worked for me. 

JOIN
Hi , Its not working for me. On running code its giving me exception following is the output:- log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment). log4j:WARN Please initialize the log4j system properly. Hibernat 

sql query execute but no update in database
I have started the project with struts freamwork in netbeans.Configaration of my project:data source of connect with mysql is defined in web-config.xml,I have created 4 package 1 is for action class,2 is for formbean,3 is for DAO,4 is for properties  

Note: for Running Update Example
In this example we are trying to fetch the Insurance record with ID =1 and update that. So you should have a Record in the Insurance table with id=1; Insert a record in Insurance table and run this example 

please include the jar in class path
Hello friend ,It seems you have not included the jar file for log4j in your project classpath please download and include include the following jar files slf4j-api-1.5.0.jar and slf4j-simple-1.4.1 and that should fix this issue ... Regards ..  

getting below excption for Update
Batch update returned unexpected row count from update: 0 actual row count: 0 expected: 1  

Help required in solving this exception-Urgent
Batch update returned unexpected row count from update: 0 actual row count: 0 expected: 1  

this code for upading row(tested by fareed)
Contact contact=(Contact)session.get(Contact.class,new Long(3)); contact.setFirstName("fareed"); contact.setLastName("khan"); contact.setEmail("fareedm@gmail.com"); Transaction tx=session.beginTransaction 

Examples
very Good Examples 

update the existing row
i want to update the existing row in the data base.  

update example
I can't get the update example to work. That part isn't explained very well. I don't know what its supposed to be doing. When I run it it creates an empty insurance table and comes up with this. "Hibernate: select insurance0_.ID as ID2_0_, insuranc 

Fix
I changed it to use the contact table that already is defined and have a row (id = 6) since before. I could not see that we have defined the table insurance. So I did this small change and it works Contact contact = (Contact)sess.get(Conta 

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