Learn how to create a clustered index in SQL using the CREATE INDEX statement or a constraint, and some best practices and tips to optimize your index design.

Creates a relational index on a table or view. Also called a rowstore index because it is either a clustered or nonclustered B-tree index. You can create a rowstore index before there is data in the ...

CREATE XML INDEX (Transact-SQL) [!INCLUDE SQL Server SQL Database] Creates an XML index on a specified table. An index can be created before there is data in the table. XML indexes can be created on ...

Learn what a spatial index is, why it is useful, and how to create one in SQL for geographic data. Get tips and best practices for spatial indexing in SQL.

An index stores both the values of a table's columns and a system of directions that enable access to rows in that table by index value. Defining an index on a column or set of columns enables SAS, ...

In this paper, we present an indexing structure which is a pluggable component of Spark SQL based on Apache Spark. Compared with Spark SQL, it has some additional advantages. Firstly, it allows users ...