The point data set from table points
in the Microsoft Access Database (mdb) file data.mdb
is visualized as layer points.lyr
in ArcMap 10.6. The coordinate system is known. However, it is not allocated yet, i.e. the property of points.lyr
says Coordinate System: Undefined
. How can I allocate the coordinate system to points.lyr
? The tool Data Management Tools
> Projections and Transformations
> Define Projection
works for raster files. However, it seems not to work for a layer file with data from a mdb-file.
It is verified that the dataset is neither used by another application, locked nor read-only.
points
dataset is a featureclass or a simple non-spatial table.OBJECTID
and another column calledSHAPE
(SHAPE
isLong binary-Data
for all rows).