Non-clustered indexes can be numerous in SQL Server 2008 I remember from my Sybase days that SQL Server tables could support up to 255 indexes. One clustered index and 254 non-clustered indexes.

Non-clustered Columnstore Indexes are also getting some enhancements in SQL Server 2016. The most notable of these enhancements is the ability to be updated.

Many SQL Server operations can often be made faster by taking advantage of effective clustered indexes. It should be understood that this combination of a non-clustered and clustered index on the same ...

Denny's SQL Secrets Are Too Many SQL Server Indexes Hurting Your Performance? The question leads to an even more important question: do your users care? By Denny Cherry 07/16/2014 ...

Denny's SQL Secrets When Should You Create New SQL Server Indexes? Here's how to spot when new indexes are needed to improve performance. By Denny Cherry 04/11/2014 ...

Découvrez les bases des index clusterisés et non clusterisés dans SQL, et quand utiliser chacun d’eux. Découvrez comment optimiser vos requêtes avec des exemples et des conseils.