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2 votes
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DB design for tree structure of user access permissions

I am trying to come up with a good database design for the following problem: We have an application where users can create objects (such as notes) and link those objects to other objects, projects or ...
hg.m's user avatar
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3 votes
2 answers
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Best design for a tree-like structure database

I'm designing a database in MS Access which is used for tracking the locations of a variety of chemical solutions, made in batches. Each batch can be split (aliquoted) practically indefinitely. That ...
Mark Butler's user avatar