Our SQL Server 2014 is exceptionally sluggish today. I've ALTER INDEXed to Rebuild and Reorg the table keys and I've updated stats. If anything, retrieval response seems slower after having done that. There has been no recent updates to the tables, views or procedures, so no new indexes or joins. I'm thinking perhaps there is a space or index allocation or table size issue of some time. Actual space on the physical drives is fine. I'm no DBA. Can someone give me some hints as to where to look for possible issues?