[Source]
# File lib/sequel_core/adapters/shared/oracle.rb, line 25 25: def empty? 26: db[:dual].where(exists).get(1) == nil 27: end
Oracle uses MINUS instead of EXCEPT, and doesn‘t support EXCEPT ALL
# File lib/sequel_core/adapters/shared/oracle.rb, line 20 20: def except(dataset, all = false) 21: raise(Sequel::Error, "EXCEPT ALL not supported") if all 22: compound_clone(:minus, dataset, all) 23: end
[Validate]