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.

When this happens it is logged for every single index that is being written to. So for a table with nine non-clustered indexes on it there are 10 writes to the transaction log.

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