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Search options not deleted user 89622

The development of the conceptual schema and/or the logical model and/or the physical settings of a database.

1 vote
1 answer
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Designing a database for "not seen" queries

I'm building a large collection of items from which I want to query items that a specific user has not seen before. I will need to track, per user, which items s/he has seen. Currently the items are …
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