Create an index on a column of a table or a materialized view to speed up data retrieval. Indexes in a database are designed to increase the speed at which the database management system (DBMS) can ...

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, ...

How to Reindex SQL Tables. The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can ...

SQL lets you use one command to quickly create a new table containing a subset of records from a larger table while working in Access. Sound complicated? It's not, as Mary Ann Richardson shows us.