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.

Ninety-nine percent of the time, you'll be working with non-clustered indexes. Very rarely do changes to the clustered index need to be made. What about security?

Scans into Seeks Typically, you'll want to get rid of index scan operations by turning them into index seeks. Do this by adding an additional non-clustered index to the table being scanned.

You'll notice if you turn on the execution plans for your queries in query analyzer that any operation which uses a non-clustered index has a secondary "bookmark lookup" step which actually ...

InfluxData, the creator of the time series platform InfluxDB, is unveiling InfluxDB Clustered, the self-managed iteration of the company’s time series database for on-premises or private cloud ...

Standard methods for the regression analysis of clustered data postulate models relating covariates to the response without regard to between- and within-cluster covariate effects.

In late 2016, Microsoft announced the general availability of Azure SQL Database In-Memory technologies. In-Memory processing is only available in Azure Premium database tiers and provides ...

In SQL Server 2012, the columnstore indexes are non-clustered and cannot be updated other than by rebuilding the entire index.