Removing Duplicate Records and Merging with the previous record

Hi
Can any one help me in doing this..
I want to delete a duplicate record from the current table.If there is one more record of the same kind. Compare the two records and fill the columns which are empty. Then Merge it. and Remove the duplicate record...Before deleting the record move it into the backup table..
with regards
srikanth

I understand conceptually what you're after. At a detailed level, though, you're going to have to enunciate some specific rules to enforce.
1) What makes row A a duplicate of row B? Is it just the Name column? Some combination of columns? Something else?
2) What is the exact rule for merging rows? Among other questions
- If you have multiple non-NULL values for a particular column, which column wins? If you have one row that is Manchester, NH and one that is Nashua, NH, which would you keep?
- Does the merge logic depend on the particular column (i.e. perhaps you want the city & state to come from one row whereas first and last name can come from different rows)
Justin

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Validating record by checking all the previous records

hi all
i have a tabular form where i have values like
from_acc to_acc
100 200
200 300
400 450
now when i enter a new record everytime i want to check the values from the firs record
i want to make i a record level validation
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hi i want to make sure that the new record that user enters does not overlap any of the values of the from_acc and to_acc hence i need to navigate from the first record to the second last record .
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Message was edited by:
bindok mulga

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exception
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I am running
Hardware Overview:
Model Name:          Mac Pro
Model Identifier:          MacPro1,1
Processor Name:          Dual-Core Intel Xeon
Processor Speed:          2,66 GHz
Number of Processors:          2
Total Number of Cores:          4
L2 Cache (per Processor):          4 MB
Memory:          6 GB
Bus Speed:          1,33 GHz
Boot ROM Version:          MP11.005D.B00
SMC Version (system):          1.7f10
Serial Number (system):          CK7XXXXXXGP
Hardware UUID:          00000000-0000-1000-8000-0017F20F82F0
System Software Overview:
System Version:          Mac OS X 10.7.5 (11G63)
Kernel Version:          Darwin 11.4.2
Boot Volume:          Macintosh HD(2)
Boot Mode:          Normal
Computer Name:          Mac Pro van Juko de Vries
User Name:          Juko de Vries (jukodevries)
Secure Virtual Memory:          Enabled
64-bit Kernel and Extensions:          No
Time since boot:          11 days 20:39
Message was edited by Host

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Removing Duplicate Records and Merging with the previous record

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