# File lib/dm-migrations/adapters/dm-oracle-adapter.rb, line 44
      def field_exists?(storage_name, field_name)
        statement = DataMapper::Ext::String.compress_lines("SELECT COUNT(*)\nFROM all_tab_columns\nWHERE owner = ?\nAND table_name = ?\nAND column_name = ?\n")

        select(statement, schema_name, oracle_upcase(storage_name), oracle_upcase(field_name)).first > 0
      end