Migration makes tags orphaned references

Question

A question, "How to Model Inheritance of Two Tables MYSQL" was migrated to this forum from Stackoverflow. Unfortunately, my answer to that question contained references to three tags that do not exist (yet) in this forum.

The "info" tab on those three tags contained the nitty-gritty details concerning three techniques that I consider helpful to the asker. Those three tag references are now orphans.

What's the right solution? Is it replicating the three tags over here, and filling in the info tab with the same info? That seems like a violation of DRY (aka "harmful redundancy"). Is it plugging the details about the three techniques into the answer itself? That's also a violation of DRY. Is there a way of making a tag reference point to the tag in its original location? Is that a good idea?

I haven't had this much fun since the last time I tried to shuffle records in a pre-relational database (little joke).

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As a side issue, I have to wonder why the question was migrated off of SO. Anybody who has done both object modeling and data modeling realizes that there is an enormous overlap between the two disciplines. That's notwithstanding the infamous "object relational impedance mismatch". I don't see how a moderator could consider object modeling questions on topic in SO but data modeling questions off topic.

Answer 1

One option would be to link to the SO tags directly: eg https://stackoverflow.com/tags/single-table-inheritance/info though I don't think there is any harm just summarising the relevant info over here: SO is a completely different universe which means the 'Y' in 'DRY' doesn't apply ;)

Answer 2

Regarding the question of "how do the tags work" -

Each site has it's own tag tables, right? That much is pretty evident. The SE team could migrate the tag over if it doesn't exist on each question, but that would create a lot of cruft because different sites may use different tags in different ways. Right now the solution is to keep tags that already exist on the Q and flush all the rest.

In the case of "what do I do" you either create the tags you want anew, or, if you don't have the rep, flag it for someone to add the tags for you. You could also pop into chat and ask someone to add it.

But, and here's the thing, you should only copy the tags that are appropriate to Database Administrators.Stack Exchange. In this case the choices were mysql sql query and database-design.

query and sql are both sort of crappy tags, but could be appropriate here. On SO they're a better way to funnel stuff down.