I'm trying to understand why a non-clustered index is not available for a given query when filtered. The relevant part of my (large) query is this: ) results JOIN BE_Insurance ins ON results.PayorId ...
Howto improve performance for these queries, why is my indexed view making it worse for most of them and how can I change that?
for the record, this is a rewrite of the following question (you do not have to read that because I include all important data here) Howto improve performance for queries against table without primary ...
Howto improve performance for queries against table without primary key without changing the query or the table directly? [closed]
UPDATE: I included some updated information in this question, because there was no way of progressing here given the previous constraints. Scroll to the bold-faced paragraphs to see my updates; I ...
I have been doing some index evalaution on a table and this is the first time I have ever looked at how well indexes are performing so and would like some advice on a certain index. The non ...