all NCI access that needs extra data will use the clustered index to fetch that data.
what columns do you expect to get used ?
Provide indexes for those columns and try to figure out if you can use included columns for index only access.
As a general guideline I suggest to provide FK indexes, unless proven they hurt your data systems performance.
As a status column datatyped bit, maybe a filtered index can reduce IO quite a bit depending on the distribution ratio .
Johan
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