The Indexes toolset provides tools that create and remove indexes.
ArcGIS uses indexes to quickly locate data. It uses attribute indexes to locate records that match an attribute query, and it uses spatial indexes to locate features that match a spatial query.
Adds an attribute index to an existing table, feature class, shapefile, coverage, or attributed relationship class.
Adds a spatial index to a shapefile, file geodatabase, or ArcSDE feature class. Use this tool to either add a spatial index to a shapefile or feature class that does not already have one or to rebuild an existing spatial index.
This tool deletes an attribute index from an existing table, feature class, shapefile, coverage, or attributed relationship class.
Deletes the spatial index from a shapefile, file geodatabase feature class, or an ArcSDE feature class. The spatial index cannot be deleted from a personal geodatabase feature class.