.. meta::
   :keywords: web2py, framework, DAL, データベース抽象化レイヤ, トピックス



トピックス
==========

.. toctree::

   table_relation
   join
   table_inheritance
   common_field
   common_filter
   legacy_db
   self_reference
   uuid
   format
   recursive_select
   function_field/function_field
   export_import_csv
   generate_sql_statements
   smart_query
   operation_by_dict
   callback_function
   record_versioning