We have a geodatabase containing an obj class (main table) which has subtypes & these contain domains.
Need a way (e.g. script) to get those subtypes & domains in a "readable" table.
I'd recommend checking out the X-Ray for ArcCatalog extension created by ESRI.
Here's a snip from the description:
The X-Ray for ArcCatalog add-in can be used to develop, refine and document your geodatabase designs. This version can be used natively in ArcCatalog and replaces tools found previously on ArcScripts.
X-Ray for ArcCatalog will help you:
And here's a video on how to use it.
It's a really nice tool to have.
There is an ESRI tool that will do this for you:
The tool is available at all license levels and is found in the Data Management Toolbox under the 'Domain' group.