How I can make outer join ?

cdcarlys · **Posted:** Wed Mar 14, 2007 9:22 pm

[b]Hibernate version:3.1

[b]Mapping documents: It is not necessary.

[b]Name and version of the database you are using:Oracle 9i.

I have tried to understand joins in HQL, inner join, rigth to outer join and left to outer join, but I have not obtained it, with the examples that encounter in the www. Somebody can explain the meaning to me of each one of them with examples and that criterion to use for knowing when I use one or another one. It would thank for much that can help me.

aragon · **Joined:** Tue Mar 13, 2007 9:49 pm **Posts:** 8

you may try the criteria approach

for example , I wanna join the Product and Supplier , in which the product reference to supplier.
I try to outer join the supplier name

Code:

String supplierName = "bla bla bla";
Criteria criteria = createCriteria(Product.class);
criteria.createCriteria("prod_assoc_supp", Criteria.LEFT_JOIN).add(
                    Expression.like("supplierName", supplierName));

The point is to use "criteria.createCriteria(.....).add(criterion)"

cdcarlys · **Posted:** Thu Mar 15, 2007 10:46 am

aragon wrote:

you may try the criteria approach

for example , I wanna join the Product and Supplier , in which the product reference to supplier.
I try to outer join the supplier name

Code:

String supplierName = "bla bla bla";
Criteria criteria = createCriteria(Product.class);
criteria.createCriteria("prod_assoc_supp", Criteria.LEFT_JOIN).add(
                    Expression.like("supplierName", supplierName));

The point is to use "criteria.createCriteria(.....).add(criterion)"

Very I am been thankful