Hi Folks,
I am new in EJB, and have a question about how to load a null parent_id into
its Entity bean. I have a table as follows:
CATEGORY
+---+---------+----------+
| |ID |NAME |PARENT_ID |
| |1 |Computer |Null |
| |2 |PC |1 |
| |3 |Mac |1 |
I want to load the first computer row with null parent_id into entity bean
Category, but I don't know how to create an em.createQuery("..."). Any help
will be appreciated. Thank you in advance.
GUS
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