Quantcast
Channel: Tomas Lind » Statistics
Browsing latest articles
Browse All 2 View Live

Image may be NSFW.
Clik here to view.

Index selectivity

When SQL Server evaluates if an index should be used to retrieve data in a query, selectivity is one of the most important factors. Of course, given that the index column matches the filter or join...

View Article



Image may be NSFW.
Clik here to view.

Capturing Long Running Queries

Long running queries in a database may or may not be a problem, depending on the type of system. In a data warehouse solution, queries that runs for several minutes may be perfectly normal and nothing...

View Article
Browsing latest articles
Browse All 2 View Live




Latest Images