Hi, I’m running into a problem when trying to creating a simple data model. I have two entities named Comment and Tags and a mapping table with foreign keys comment_id and tag_id pointing to both tables.
When I try to publish the data model, I’m getting an error message that says:
“Target model is invalid, a dataset must have either a fact or an anchor with a label or a valid grain.”
Can you tell me what am I doing wrong? Also, what is fact, anchor, label, and grain?
Best answer by PavelView original