Wait Stats capture script
Performance troubleshooting should begin with capturing wait stats so we can understand where SQL Server is busy. The script below captures wait stats into a table in tempdb; the script should be ran via a…
Could not find database ‘x’, or why good object names are important.
SQL Server provides a method for specifying object names that contain special characters – you simply wrap the name in square brackets, as in [This-Is-A-Valid_$_ObjectName]. However, simply because you can do a thing, doesn’t mean…
New Look, New Web Address!
As you’ve probably already noticed, SQL Server Science has a new logo, however you may not have noticed we’ve also changed our web address to SQLServerScience.com. The old domain name, SQLServer.science, will continue to work…
Backup Performance Testing
Reliable database backups are perhaps the single most important aspect of a Database Administrator’s job. The business risk from data-loss that can occur without a reliable database backup are substantial enough to bring many smaller…
Mimic Production in Development
Attempting to debug production performance problems in your development environment can be problematic in many ways, leading to a frustrating troubleshooting experience. One very common situation is the resources on the development environment are substantially…
ALTER TABLE ALTER COLUMN failed because one or more objects access this column
There are a variety of causes for the message shown in the title of this post. Manually creating statistics for a column is one such cause. This post shows how that works, and what you…