| Module | Sequel::Oracle::DatasetMethods | 
| In: | lib/sequel/adapters/shared/oracle.rb | 
| SELECT_CLAUSE_METHODS | = | Dataset.clause_methods(:select, %w'with distinct columns from join where group having compounds order limit') | 
     # File lib/sequel/adapters/shared/oracle.rb, line 108
108:       def empty?
109:         db[:dual].where(exists).get(1) == nil
110:       end
          Oracle uses MINUS instead of EXCEPT, and doesn‘t support EXCEPT ALL
     # File lib/sequel/adapters/shared/oracle.rb, line 102
102:       def except(dataset, opts={})
103:         opts = {:all=>opts} unless opts.is_a?(Hash)
104:         raise(Sequel::Error, "EXCEPT ALL not supported") if opts[:all]
105:         compound_clone(:minus, dataset, opts)
106:       end