Index Fragmentation Explained: Page Splits, Logical Reads, and What to Do
Index fragmentation can silently degrade your query performance over time. Learn what happens at the page level, how to measure it, and how to fix it.
2026-06-22
4,179 reads
Index fragmentation can silently degrade your query performance over time. Learn what happens at the page level, how to measure it, and how to fix it.
2026-06-22
4,179 reads
With origins from the world of “Submarine ‘Dolphin’ Qualification” questions, an “Oolie” is a difficult question to answer, or the knowledge or fact needed to answer such a question, that may or may not pertain to one's duties but tests one's knowledge of a system or process to the limit. Introduction Contrary to what many […]
2019-08-08
6,513 reads
By James Serra
(This is the third post in a three-part series on how AI is changing...
Continuing with my takeaways from SQLCon and FabCon Europe in Barcelona, let’s talk about...
By Steve Jones
Next year the PASS Data Community Summit is in DENVER! and London, but Denver...
Comments posted to this topic are about the item Pay for Performance, which is...
I wrote about this several years ago but will contribute again a life hack...
Hi I have this query that is slow during the 'not in' part of...
I run this query:
SELECT s.name AS schemaname , o.name AS objectname FROM sys.objects o INNER JOIN sys.schemas s ON s.schema_id = o.schema_id WHERE o.name = 'Beer'I get one row back for an object named dbo.beer. There is an ETL schema and both of these are nonpartitioned tables. I run this code:
ALTER TABLE dbo.beer switch TO etl.beerWhat happens? See possible answers