diff --git a/lib/active_record/connection_adapters/oracle_enhanced/quoting.rb b/lib/active_record/connection_adapters/oracle_enhanced/quoting.rb
index 835185872..0c773002d 100644
--- a/lib/active_record/connection_adapters/oracle_enhanced/quoting.rb
+++ b/lib/active_record/connection_adapters/oracle_enhanced/quoting.rb
@@ -115,18 +115,6 @@ def quote_date_with_to_date(value) #:nodoc:
           "TO_DATE('#{value}','YYYY-MM-DD HH24:MI:SS')"
         end
 
-        # Encode a string or byte array as string of hex codes
-        def self.encode_raw(value)
-          # When given a string, convert to a byte array.
-          value = value.unpack('C*') if value.is_a?(String)
-          value.map { |x| "%02X" % x }.join
-        end
-
-        # quote encoded raw value
-        def quote_raw(value) #:nodoc:
-          "'#{self.class.encode_raw(value)}'"
-        end
-
         def quote_timestamp_with_to_timestamp(value) #:nodoc:
           # add up to 9 digits of fractional seconds to inserted time
           value = "#{quoted_date(value)}" if value.acts_like?(:time)
diff --git a/lib/active_record/connection_adapters/oracle_enhanced/schema_definitions.rb b/lib/active_record/connection_adapters/oracle_enhanced/schema_definitions.rb
index 458839518..67c09f4fa 100644
--- a/lib/active_record/connection_adapters/oracle_enhanced/schema_definitions.rb
+++ b/lib/active_record/connection_adapters/oracle_enhanced/schema_definitions.rb
@@ -48,10 +48,6 @@ def initialize(name, temporary = false, options = nil, as = nil, tablespace = ni
           super(name, temporary, options, as, comment: comment)
         end
 
-        def raw(name, options={})
-          column(name, :raw, options)
-        end
-
         def virtual(* args)
           options = args.extract_options!
           column_names = args
diff --git a/lib/active_record/oracle_enhanced/type/raw.rb b/lib/active_record/oracle_enhanced/type/raw.rb
index 94925a516..6acc22262 100644
--- a/lib/active_record/oracle_enhanced/type/raw.rb
+++ b/lib/active_record/oracle_enhanced/type/raw.rb
@@ -8,6 +8,17 @@ class Raw < ActiveModel::Type::String # :nodoc:
         def type
           :raw
         end
+
+        def serialize(value)
+          # Encode a string or byte array as string of hex codes
+          if value.nil?
+            super
+          else
+            value = value.unpack('C*')
+            value.map { |x| "%02X" % x }.join
+          end
+        end
+
       end
     end
   end