Hi there,
I'm stuck here and would appreciate any nudges or ideas! My basic scenario is this - I have a table with duplicate records and I need to take the values from the duplicate records and place them into separate columns. The table structure is similar to this (sorry - periods are being used as separators):
SAMPLE....VALUE
G1234...........50
G1234...........68
What I'm aiming for is something like this (preferably stored in a query):
SAMPLE....VALUE1....VALUE2
G1234............50..............68
I realize that this is not ideal! But this is what the client wants/needs for comparison purposes.
Can this be done via SQL/VBA? I know that I could potentially use an SQL find duplicates query to at least count the duplicates, but that ends up with a count and not the actual values.
Even explaining the logic required would help! I'm using Access 2003 on XPSP2.
Thank you,
Olwyn
3  1387 
Hi, Olwyn.
The issue looks to be complicated. So far I don't see how it may be implemented as query, but via temporary table. On the other hand you may easily build a query returning the following results
SAMPLE....VALUE
G1234...........50
G1234...........68
SAMPLE....VALUES_LIST
G1234............50, 68
Would this fit your needs?
Regards,
Fish
Hi Fish!
Yep, it's complicated alright...
I never thought about the concatenation aspect - it *might* work, I'll have to clarify with the client. I suspect it may not be the answer.
My new(?) plan that I'm working on is to load the duplicate samples into an array, then use another array to store the values...much more complicated though...
Cheers,
Olwyn
Hi, Olwyn.
The issue looks to be complicated. So far I don't see how it may be implemented as query, but via temporary table. On the other hand you may easily build a query returning the following results
SAMPLE....VALUE
G1234...........50
G1234...........68
SAMPLE....VALUES_LIST
G1234............50, 68
Would this fit your needs?
Regards,
Fish
If you have no more than two duplicates, you could try something like this:
SELECT SAMPLE, Min(VALUE) AS VALUE1, Max(VALUE) AS VALUE2
FROM YourTable
GROUP BY SAMPLE
HAVING COUNT(*) > 1
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