Creating Truth table using Decisions SDK

Hi,

Can we create Truth table using Decisions SDK/API ?
I want to create a Truth table using my web application ? Does the Decisions support transaction ?
I want to delete all the existing rows of truthtable and insert a new one.
But this should be a single transaction. i.e if insert failed then it should rollback delete.
If a run a truth table in a flow, can I get full row including condition columns which satisfies the input argument.

Thanks.