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What are the tables SDE_IA_xx_yyy_DT and SDE_IMGAUX_xx found in ArcSDE?
The tables SDE_IA_xx_yyy_DT and SDE_IMGAUX_xx found in ArcSDE are created by the ERDAS IMAGINE Raster Format DLL.
Only these two tables are created by this DLL. These tables are created in the schema of the user who owns the raster dataset.
The tables are not deleted when the raster dataset is deleted by ArcCatalog.
ERDAS IMAGINE, LPS and Stereo Analyst for ArcGIS use this DLL (rf_sdr.dll).