How To: Delete spatially coincident points without using Delete Identical tool
Spatially coincident points - duplicate points at identical locations - may exist in a dataset, and it is sometimes necessary to delete duplicate points to retain only one point feature with one attribute table entry. In ArcGIS Desktop 10.X, the Find Identical and Delete Identical tools are introduced for managing duplicate records. However, these two tools require an Advanced license. Therefore, users using Basic license or Standard license or using earlier version of ArcGIS Desktop (9.X) need alternative methods to delete duplicate points.
The Dissolve (Data Management) tool can be used as an alternative to dissolve spatial coincident points into one point feature. This method is applicable for all license levels and software versions.
Dissolve_Fields(s): Add both the X and Y coordinate fields added in Step 1. Optionally, add additional attribute fields if only points that are spatially coincident and have identical attribute values in certain fields should be dissolved.
Statistics Field(s): Select the proper operator to aggregate attribute values for the retained point features.