Data Ortogonale Projection
Visual Dorp Filter  V.6.1

Wellcome to the word of Object Oriented Filtering (OOF)

Introduction OOF
Basic concepts of objectively oriented filtering
          Introduction
            Filter with one table field
            Negating Conditions with the NOT operator
            Filter with NULL value
            Interior state of object
            Photo description and image
            Beautifying of the object image
            Condition analysis of filtering object
            Macro substitute
            Sensibility of our filtering object
            Filter with more table fields
            AND/OR operator
            Contracting of filtering object
            Real filtering object
Object types
          Primary objects
            Special objects
            Condesed objects
            Extended objects
            Advanced objects
                        IN object
                        Extended advance object
                        OR object
            Print objects
Join tables
          Introduction JT
            ‘Where’ condition parts
            How to use objects
The linearity of filter
          Introduction LOF
            Linear filter
            Quasilinear filter
            NonLinear filter
The number of filter surveys
Operation with NULL value