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Execute Stored procedure in Hibernate
How to invoke a stored procedure in Hibernate and pass in a parameter?I have { ? = call myservice.TEST_PROC3( ? ) }While I can get stored proc output if there is no input to TEST_PROC3, e.g. call myservice.TEST_PROC3( )I don't know how to code in Java to pass in the parameter required in my case with:call myservice.TEST_PROC3( ? )Can anyone show me how to make such call in Java?Thanks
LendingHand
- Jun 3rd, 2008
You can declare it as Named queiries in one of your mapping files and give unique name.Call it in your code. Sample code is below.SQLQuery sq = (SQLQuery) session.getNamedQuery("findSearchResults...
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Why we are using Hibernate?
why we are using Hibernate instead of JDBC where JDBC is less time taking than Hibernate?
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What is the use of cascade in hbm file?
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anupsadhwani60- Member Since Sep-2007 | Sep 16th, 2007
1) cascade="none", the default, tells Hibernate to ignore the association.
2) cascade="save-update" tells Hibernate to navigate the association when the
transaction is committed and when an object is passed to save() or
update() and save newly instantiated transient instances and persist changes to
detached instances.
3) cascade="delete" tells Hibernate to navigate the association and delete persistent
instances when an object is passed to delete().
4) cascade="all" means to cascade both save-update and delete, as well as
calls to evict and lock.
5) cascade="all-delete-orphan" means the same as cascade="all" but, in addition,
Hibernate deletes any persistent entity instance that has been removed
(dereferenced) from the association (for example, from a collection).
6) cascade="delete-orphan" Hibernate will delete any persistent entity
instance that has been removed (dereferenced) from the association (for
example, from a collection).venkat
- Jan 22nd, 2013
Using cascade property we can ensure relationship with parent to child
harikishanrao
- Dec 1st, 2010
Whenever we have a parent child relation ship, if parent record is changed then child record should also be changed. Primary key must be reflected in the child key
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What is lazy fetching in hibernate
mani.sivapuram
- Feb 14th, 2011
Lazy fetching means for example in hibernate if we use load() method then load() is lazy fetching i.e it is not going to touch the database until we write empobject.getString("eno");So when we write a...
Karuna Reddy
- Aug 22nd, 2008
Lazy loading is the responsibility is that to load the objects for its parentIn mapping file, if
you want to load the child objects while loading the parent it will wont load coz by default load = trueso
you have to specify lazy = falsehere child class become parent while loading the objects. -
Why do you need ORM tools like hibernate?
mani.sivapuram
- Feb 14th, 2011
since we want to reduce burden on the developer so for big projects if any maintaince is requered then problem finding and bug fixing is easy in case of hibernate.I can obey with one thing it we need ...
meetaskjain
- Mar 8th, 2010
Hibernate allows the application developer to concentrate on the business logic instead of writing complex SQLs. Aprt from this hibernate would take care of the database connections and managing conne...
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Lazy initialisation
What is lazy initialisation in hibernate
sambitsahu
- Jan 6th, 2010
It decides whether the child object is loading to the parent or not.--> We have to set it in the mapping file of the parent class.If lazy="true" (means not to load child)-->By default ...
inder_gwl
- Sep 25th, 2009
Lazy loading means that any foreign key references that you have in your table will be loaded only when referred to by the application. Eager loading means everything will be loaded at once.
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What is the advantage of Hibernate over jdbc?
Ballu Ashok
- Jan 21st, 2010
Hibernate Advantages:Productivity: Improves the productivity by eliminating the JDBC tedious code. ...
imam.tunduru
- Sep 9th, 2009
Advantages OF Hibernate: - First of all will provide business entity form of representation of DB tables. - Hibernate provides an interface to develop our application code which is not specific to an...
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Hibernate Persistent technology
Can anybody tell me which persistent technology can be used instead of Hibernate which is as compatible as Hibernate (not JDBC nor EJB) any parallel technology?
shaileshrit
- Sep 2nd, 2009
There is a alternate option which I have used in past. It is little different though. This is not a ORM tool, but it greatly helps in Database persistence. This is code generation utility which ge...
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What is the difference between and merge and update
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promisingram- Member Since Oct-2008 | Oct 19th, 2008
Use update() if you are sure that the session does not contain an already persistent instance with the same identifier, and merge() if you want to merge your modifications at any time without consideration of the state of the session. In other words, update() is usually the first method you would call in a fresh session, ensuring that reattachment of your detached instances is the first operation that is executed.
Thomas John
- Sep 21st, 2015
I create an object say Employee with id 1. I create this object by getting the student record from the database. Object s1 is in the session Employee e1 = null; Object o = session1.get(Employee.cl...
Mukesh Vishwakarma
- Aug 25th, 2015
Update will work at same session. After close the session or detached the state, update will not work.
But in the case of Merge after closed the session it will work. -
Hibernate Interview Questions
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