SQL Update Statement in MS Access -

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This query is trying to work in MS Access. 

  Update network. Location = enclave Location where enclave.Site = No Network and Alternative location = enclave Location where enclave.Site = Yes

I'm not sure how to do this, what I want if the enclave site is not in the field and if yes, in place of the place in the alternative location, It means that it will store empty values ​​in the network space in that row, then the network location has store enclave space.

Key field updates :

Update the energetic enclosure on the network. Set the ID = Enclave.ID network. Location = enclave Location where enclave. Site = no and network Optional location = enclave. Location where enclaves Place = Yes 

  update on network network Join the enclave ID = enclave.id SET network. Location = IIF (enclave.Site = false, enclave location, ""), network. Optional location = IIF (enclave.site = true, enclave location, "")

Note: I found it & amp; It seems, it should work.
In addition, I have assumed that you want the field to be updated on an empty space, if it does not satisfy the condition.


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