Duplicate records for Dynamic Query in WLS 7

Question

I am getting duplicate records back when I run a dynamic query. If I run the same
query via a finder method, I get the correct results.
Here's the query:
SELECT DISTINCT OBJECT(a) FROM Company AS a, b IN a.userRole WHERE b.userId = ?1
AND a.deptId IN ('1', '2', '3')
Company EJB maps to LU_Company (look up table for company)
Company to UserRole is a one-to-many relationship.
The number of duplicates is equal to the number of records I have for the same company_id
in User_Role table.
The ids for the object I should get back are 1, 2, 3.
Instead I get back 1, 1, 2, 2, 2, 2, 2, 3, 3, 3
In the database, company_id 1 occurs twice in user_role table; company_id 2 occurs
five times.
Any ideas of why the dynamic query has this problem whereas the same query for a
finder method works fine?
Thanks for your help.

Answer 1

Thanks Greg, that worked!
"Greg Nyberg" <greg.nyberg.at.objectpartners.com> wrote:
You can supply properties on the query request, perhaps there is a
SQL_SELECT_DISTINCT property:
Properties p = new Properties();
p.setProperty("GROUP_NAME", "fieldgroup");
p.setProperty("INCLUDE_UPDATES", "true");
p.setProperty("SQL_SELECT_DISTINCT", "true");
Collection people = myQuery.find(
"SELECT OBJECT(o) FROM PersonCMPEJB o WHERE o.lastName = 'Smith'", p);
-Greg
Check out my WebLogic 6.1 Workbook for O'Reilly EJB Third Edition
www.amazon.com/exec/obidos/ASIN/1931822468 or www.titan-books.com
"Mike" <[email protected]> wrote in message
news:[email protected]...
Matt,
<sql-select-distinct> needs to be set in <weblogic-query> element. I amgenerating
a dynamic query from within a local client. So I don't have a finderdefined for
this method. (I don't want to define a finder for this method). How doyou suggest
I can use this? Thanks again for your help.
Matthew Shinn <[email protected]> wrote:
Hi Mike,
I just filed a bug report for this (CR079471). As a work around, you
can
use the
setSQLSelectDistinct flag so the database will weed out the duplicates.
The only thing to
look out for when using this flag is that Oracle will not allow the use
of 'SELECT DISTINCT'
in conjunction with a 'FOR UPDATE' clause, thus,<sql-select-distinct>True
CANNOT be used if
any Bean in the calling chain has a method with <transaction-isolation>
set to
<isolation-level>TRANSACTION_READ_COMMITTED_FOR_UPDATE. Sorry for theinconvenience.
- Matt
Mike wrote:
I am getting duplicate records back when I run a dynamic query. If
I
run
the same
query via a finder method, I get the correct results.
Here's the query:
SELECT DISTINCT OBJECT(a) FROM Company AS a, b IN a.userRole WHERE
b.userId
= ?1
AND a.deptId IN ('1', '2', '3')
Company EJB maps to LU_Company (look up table for company)
Company to UserRole is a one-to-many relationship.
The number of duplicates is equal to the number of records I have forthe same company_id
in User_Role table.
The ids for the object I should get back are 1, 2, 3.
Instead I get back 1, 1, 2, 2, 2, 2, 2, 3, 3, 3
In the database, company_id 1 occurs twice in user_role table;
company_id
2 occurs
five times.
Any ideas of why the dynamic query has this problem whereas the same
query
for a
finder method works fine?
Thanks for your help.