About CKAN Sample Dataset

You can use "ckan seed" to create sample datasets

e.g. ckan seed basic, which creates two datasets: 

1. annakarenina
2. warandpeace

BUT, after you delete the two datasets, either via 

User Interface 

OR 

CLI: 

ckan dataset delete annakarenina 

ckan dataset purge annakarenina

 

You cannot run the "ckan seed basic" again to regenerate the two datasets. 

Why?

Since there are two records still in table "group" and 5 records created in table "user" (They are created by "ckan seed basic"). Remove those records and then you can run the "ckan seed basic" again.