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Then, you will aggregate the values in the attribute table, so that the quantitative values in the attribute table will reflect the new spatial boundaries for regions. Export the layer as a new shapefile to make the join permanent. Although spaces are accepted in an output shapefile name, it is recommended to only use numbers, letters, and underscores when naming shapefiles, feature classes, and fields. dissolve) the spatial boundaries of the United States state boundaries using a region name that is an attribute of the dataset. Remove the invalid special characters and spaces from the file names before running the Dissolve tool. Pro being 64bit should also help but it appears there may have been issues there as well. In this lesson, you will use Python to aggregate (i.e. When you see this type of output in ArcMap, please make sure to try the same process using Background 64bit ( ). Additionally, running the Dissolve tool a second time on output that was created this way may result in very slow performance for little to no gain and may cause an unexpected failure.

The maximum size of any output feature is determined by the amount of available memory at run time therefore, output containing tiles is an indicator that dissolving any further with the available resources would cause an out-of-memory situation or result in a feature that is unusable.

Running Dissolve on the output of a previous dissolve run will rarely reduce the number of features in the output when the original processing divided and processed the inputs using adaptive tiling.

Arcmap dissolve