Yes, that was it. Thanks a lot for this advice! Now it does something again.
Unfortunately, I still cannot go on. I thought I could merge this with the raster by using OID. Unfortunately, the OIDs refer to different points, and no other variable is available in both sets.
I really don't understand this: All I want to do is merge my oil fields (point data) with my sedimentary data (point data but refers to cells). But I can't even have the point data displayed in a cell. I just tried the Point to Raster approach; it gives me a nice immage, but it is just that - an image. There is no attribute table and I cannot get the data into a fishnet.
And when I try to merge point data with grid data by right clicking on the grid data and selecting spatial join, all I get is this error message:
Error executing function.
Invalid SQL syntax[near "IN": syntax error]
Failed to execute (SpatialJoin).
My task seems like a fairly standard procedure; how can this be so difficult?