In a geodatabase, a mechanism for optimizing access to data based on the spatial column of the business table.

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Is there a way to force ArcCatalog to use a specific tessellation scheme for a SQL Server spatial index?

If I Recalculate a spatial index from ArcCatalog, the tessellation scheme is always set to "Geometry Grid". Even when the previous index was Geometry auto grid. ArcCatalog always changes it back. ...
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Spatialite, to speed performance, when should I create Views, Indexes or additional spatial tables?

I’ve got a large Spatialite database with a table of lines (roads, rail and water). I created a spatial index of the geometry to speed things up. This works amazingly well when I’m zoomed in ...