How to build indices for your data
- You can improve the performance of ArcMap by building a spatial index for your data. RivEX will try to do this for you if it sees that your dataset is without a spatial index. This process can fail (e.g. the file was schema locked by another application) so you may want to build these indices independently.
- Performance can also be improved with attribute indices. Indices can be built by calling the appropriate Geo-processing tool or using ArcCatalog.
- If your data is stored as a Geodatabase FeatureClass then you do not need to build a spatial index, this is already handled by the Geodatabase but you may want to consider building attribute indices.
- The following walk through shows how a spatial index and attribute indices are built for a Shapefile using ArcCatalog.
- Start ArcCatalog (
) and navigate to you Shapefile.
- Right Click on on your shape file and select properties (
) from the pop up menu.
- Click on the Indexes tab, check any attribute fields you wish to have indexes built for and then click on the ADD button to create a spatial index. Only when you click on APPLY will the indices be built.

- If you don't like using ArcCatalog you can just as easily use the ArcToolbox geo-processing tools with ArcMap.

