Customized OAF page -- Duplicates Issue

Question

Hi All,
We have a customized OAF page which allows user to perform the below operations,
1. Query for records
2. Add a new row
3. Save the changes
Issue is 3 of the fields in the page are of unique combination. We perform the validation to ensure unique values only get stored, if user tries to enter an value combination which already exists then system throws an error. But when user enters valid records and save it, the previously entered wrong data also gets stored to database.
I have explained the scenario below, Item id/global code/local code are the unique combination fields
1. User enters below values
ITEM ID GLOBALCode LocalCode Desc
IT123 100 100 T1
Saved successfully.
2. User now enters below values
ITEM ID GLOBALCode LocalCode Desc
IT123 100 100 T2
When tries to save, get error message as Combination already exist. If i search for item id IT123 and Global code 100 it shows only 1 row
3. User now enters below values
ITEM ID GLOBALCode LocalCode Desc
IT123 100 101 T3
Saves the data successfully. But if i search for item id IT123 and global code 100 i am getting 3 rows as below,
ITEM ID GLOBALCode LocalCode Desc
IT123 100 100 T1
IT123 100 100 T2
IT123 100 101 T3
Errored out record in step 2 also got inserted. Please assist if any of you have faced similar issue else provide some pointers in resolving the issue.
Thanks,
Rajesh SM.

Answer 1

Rajesh,
Issue is 3 of the fields in the page are of unique combination. We perform the validation to ensure unique values only get stored,
if user tries to enter an value combination which already exists then system throws an error. But when user enters valid records
and save it, the previously entered wrong data also gets stored to database.what all the steps or code u wrote to check the combination already exists or not. Post the method u have written to check the same.
Regards,
Gyan