# File lib/arel/engines/sql/compilers/oracle_compiler.rb, line 65
      def delete_sql
        where_clauses = relation.wheres.collect(&:to_sql)
        taken = relation.taken
        where_clauses << "ROWNUM <= #{taken}" unless taken.blank?
        build_query \
          "DELETE",
          "FROM #{relation.table_sql}",
          ("WHERE #{where_clauses.join(' AND ')}" unless where_clauses.blank? )
      end