What Is Non-Clustered Index In Sql Server With Example? In a non-clustered index (or b-tree index), the order of the rows is not the same as how the data actually appears.

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.

The latest solutions in big data processing demand working with increasingly large amounts of data in ever shorter periods of time. In 2012, MS SQL introduced the ColumnStore (CS) Index.