Answer by Gordon Linoff for Is it faster to use 1 reference for table merging...
I think the second is preferable. Why? The first imposes a particular ordering on the joins. It is possible that the optimizer recognizes that the two structures are identical, but that I wouldn't...
View ArticleIs it faster to use 1 reference for table merging or a 'chain' of references?
I am querying data from a process historian that was stored using OPC. The querys run very slow. What table merging method should I expect to be faster and why when I query the data?This:and a1.TS...
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