Dig into backend workflows.
If I understood you correctly - this will solve your case:
0. Create new API in Backend Workflows:
Schedule Workflow API (let’s call it API1) on some event (button click or smth) → propagate your list or object into parameters + iteration variable
API1 has two actions inside:
Create a thing (with your list:item #iteration)
Schedule Workflow API1 within itself with increase of iteration variable
CRUCIAL thing is to add ‘Only when’ condition so the loop with end when some parameter will met it’s value:
This value may be static or propagated as a parameter (i.e. you may use list:count)
That’s it. Hope you got the idea.
If you were talking about inserting at once multiple records with one call - I’m afraid there’s no such option. At least I failed to find it when I needed.
The SQL Connector is simply a method to past SQL statements to the server. My experience has been that as long as the statement is syntactically correct, it should work fine. Have you been able to test it in the SQL Connector? If it doesn’t work, what error are you getting?