Terrific! Thanks, Adam. I’ll give it a go tomorrow.

Best,
Lily

On Apr 28, 2020, at 11:46 AM, Adam Lodge <[email protected]> wrote:


Lily,

The basics are this:

***
delete from ontologies cascade
where [some condition is met]
***

A few points of note:
- This will delete all ontologies meeting the where condition and any child 
records in other tables containing those ontologyid’s as foreign keys.

- On the where condition, you will likely filter on ontologyid or name.

- Before running the sql, delete any models or branches that reference the 
ontology you want to delete.  If you don’t do that, this statement may delete 
them, but I can’t predict the consequences.

- Probably obvious, but be sure to have a backout plan (like a db backup) in 
case of unintended consequences.

Good luck!
Adam

---
Adam Lodge
Geospatial Systems Consultant
Farallon Geographics

On Apr 28, 2020, at 10:47 AM, Adam Lodge 
<[email protected]<mailto:[email protected]>> wrote:

Hi Lily,

You are right.  There is no Arches command, but I’ve done it before with sql.  
I’ll write something for you and send it your way.

Best,
Adam

---
Adam Lodge
Geospatial Systems Consultant
Farallon Geographics

On Apr 27, 2020, at 7:08 PM, Lily Pregill 
<[email protected]<mailto:[email protected]>> wrote:

Hi,

We have multiple versions of an ontology loaded in a v.5 instance. I'm doing a 
little house-keeping and would like to remove the unused, old ontology version. 
I checked the documentation but didn't see a command to remove an ontology, 
only to load one. Suggestions on how to accomplish this would be very much 
appreciated.

Thank you!
Lily

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