I have three RDF models and I created a virtual model:
execute sem_apis.create_virtual_model('MY_VIRTUAL_MODEL', sem_models('MODEL_A', 'MODEL_B', 'MODEL_C'));
Querying the created virtual model, I use the option ALLOW_DUP=T.
But even so some queries are still slow to be answered, then is there any more option that I can use to improve the performance?
I am using the version: Oracle Database 12c Enterprise Edition Release 18.104.22.168.0 - 64bit.
Thank you in advance,
Can you please post one of the slow queries so that we can get a better idea of what is happening.