Class ActiveRecord::ConnectionAdapters::OracleEnhancedAdapter

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 888
      def create_table(name, options = {}, &block)
        create_sequence = options[:id] != false
        column_comments = {}
        super(name, options) do |t|
          # store that primary key was defined in create_table block
          unless create_sequence
            class <<t
              attr_accessor :create_sequence
              def primary_key(*args)
                self.create_sequence = true
                super(*args)
              end
            end
          end

          # store column comments
          class <<t
            attr_accessor :column_comments
            def column(name, type, options = {})
              if options[:comment]
                self.column_comments ||= {}
                self.column_comments[name] = options[:comment]
              end
              super(name, type, options)
            end
          end

          result = block.call(t) if block
          create_sequence = create_sequence || t.create_sequence
          column_comments = t.column_comments if t.column_comments
        end

        create_sequence_and_trigger(name, options) if create_sequence
        
        add_table_comment name, options[:comment]
        column_comments.each do |column_name, comment|
          add_comment name, column_name, comment
        end
        
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 1305
      def dbms_output_enabled?
        @enable_dbms_output
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 628
      def default_sequence_name(table_name, primary_key = nil)
        # TODO: remove schema prefix if present before truncating
        # truncate table name if necessary to fit in max length of identifier
        "#{table_name.to_s[0,IDENTIFIER_MAX_LENGTH-4]}_seq"
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 1299
      def disable_dbms_output
        set_dbms_output_plsql_connection
        @enable_dbms_output = false
        plsql(:dbms_output).sys.dbms_output.disable
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 1293
      def enable_dbms_output
        set_dbms_output_plsql_connection
        @enable_dbms_output = true
        plsql(:dbms_output).sys.dbms_output.enable(DBMS_OUTPUT_BUFFER_SIZE)
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 544
      def execute(sql, name = nil)
        # hack to pass additional "with_returning" option without changing argument list
        log(sql, name) { sql.instance_variable_get(:@with_returning) ? @connection.exec_with_returning(sql) : @connection.exec(sql) }
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 781
      def has_primary_key_trigger?(table_name, owner = nil, desc_table_name = nil, db_link = nil)
        (owner, desc_table_name, db_link) = @connection.describe(table_name) unless owner

        trigger_name = default_trigger_name(table_name).upcase
        pkt_sql = "SELECT trigger_name\nFROM all_triggers\#{db_link}\nWHERE owner = '\#{owner}'\nAND trigger_name = '\#{trigger_name}'\nAND table_owner = '\#{owner}'\nAND table_name = '\#{desc_table_name}'\nAND status = 'ENABLED'\n"
        select_value(pkt_sql) ? true : false
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 579
      def next_sequence_value(sequence_name)
        # if sequence_name is set to :autogenerated then it means that primary key will be populated by trigger
        return nil if sequence_name == AUTOGENERATED_SEQUENCE_NAME
        select_one("SELECT #{quote_table_name(sequence_name)}.NEXTVAL id FROM dual")['id']
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 617
      def prefetch_primary_key?(table_name = nil)
        ! @@do_not_prefetch_primary_key[table_name.to_s]
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 512
      def raw_connection
        @connection.raw_connection
      end

# File lib/active_record/connection_adapters/oracle_enhanced_adapter.rb, line 551
      def select_rows(sql, name = nil)
        # last parameter indicates to return also column list
        result, columns = select(sql, name, true)
        result.map{ |v| columns.map{|c| v[c]} }
      end