Spatial Join cardinality relationships

Question

There are two Spatial Join tools: Data Management version and Analysis version.

1. Regardless of the above tool used, is a One-to-Many, Many-to-One, or Many-to-Many situation with my data all considered a "One-to-Many" cardinality relationship with a Spatial Join? ...seems that way to me

2. That said, I know I can specify this in Analysis tool version. But, is there a reason why I cannot in the Data Management tool version?

Thanks!

Craig_Eissler_Iceman · Answer

OK thanks for that tip.

So the tool just classifies all three as 1:M for some reason?

danretired · Answer

as for M:1  think of points in polygon

1:M  polygon contains points

M:M  overlapping polygons with points therein

Craig_Eissler_Iceman · Answer

OK Dan, thanks for answering Question #2.

What about Question #1; I know there is a difference in an Attribute Join,  but is there really a difference in a Spatial Join? ...I ask because some data I'm using looks more like a M:1 or M:M, not a 1:M?