APP_PROPERTY_SQL_F_GET = 'property_get'
APP_PROPERTY_SQL_F_SET = 'property_set'
APP_PROPERTY_SQL_F_UPDATE = 'property_update'
APP_PROPERTY_SQL_IDNAME = 'id'
APP_PROPERTY_SQL_PROPERTYNAME = 'property'
APP_PROPERTY_SQL_TABLENAME = 'properties'
APP_PROPERTY_SQL_VALUENAME = 'value'