In Level 7, we looked at optimizing rowgroup elimination for a nonclustered columnstore index. For a clustered columnstore index, the same technique can be used but the steps and syntax change a bit. This will be covered later – but first, let’s take a look at another significant difference between nonclustered and clustered columnstore indexes, […]
2019-03-26 (first published: 2018-06-20)
11,205 reads
In this level, Hugo explains what batch mode execution is, how it differs from row mode execution, and what its limitations are.
2019-03-26 (first published: 2016-08-31)
4,089 reads
Learn how trusted foreign keys (FK) can help or hurt performance.
2018-08-24 (first published: 2016-03-08)
6,831 reads
2015-12-14
1,469 reads
2015-12-07
1,375 reads
2015-11-30
1,313 reads
2015-11-19
1,619 reads
2015-11-13
1,369 reads
2015-11-09
1,624 reads
2015-11-03
1,795 reads
Forgive me for the title. Mentally I’m 12. When I started my current day...
By Steve Jones
One of the things a customer asked recently about Redgate Data Modeler was how...
By Steve Jones
For a number of years, we’ve produced the State of the Database Landscape report,...
The main purpose of the Rice Purity Test is entertainment and self reflection. Many...
Comments posted to this topic are about the item Expanding into Print
Comments posted to this topic are about the item Downtime Caused by the Postgres...
In SQL Server 2025, what is returned by this code:
SELECT EDIT_DISTANCE('Steve', 'Stan')
Assume preview features are enabled. See possible answers