This ERD sample was redesigned from the Wikimedia Commons file: WordPress file-reference ERD.svg. [commons.wikimedia.org/ wiki/ File:WordPress_ file-reference_ ERD.svg]
"WordPress is a MySQL-backed blogging platform in which uploaded files are saved to a user-configurable uploads directory. Files in this directory can be organised into a number of different subdirectory structures (by default, named by year and month) under wp-content/ uploads/ in the installation directory. Files are accessed directly by the web server (and not read/ written via the application). Each uploaded file has a single row in the posts table (which may or may not be linked to an actual post row via the post_ parent key). The post_ type column of this row has a value of 'attachment'. Rows in the postmeta table are linked to this row. Where the meta_ key column of postmeta is '_ wp_ attached_ file', the meta_ value column is a filename, relative to the WP upload directory." [Web application file-reference methods. Wikiversity]
The ERD example "WordPress file-reference ERD" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Entity-Relationship Diagram (ERD) solution from the Software Development area of ConceptDraw Solution Park.
"WordPress is a MySQL-backed blogging platform in which uploaded files are saved to a user-configurable uploads directory. Files in this directory can be organised into a number of different subdirectory structures (by default, named by year and month) under wp-content/ uploads/ in the installation directory. Files are accessed directly by the web server (and not read/ written via the application). Each uploaded file has a single row in the posts table (which may or may not be linked to an actual post row via the post_ parent key). The post_ type column of this row has a value of 'attachment'. Rows in the postmeta table are linked to this row. Where the meta_ key column of postmeta is '_ wp_ attached_ file', the meta_ value column is a filename, relative to the WP upload directory." [Web application file-reference methods. Wikiversity]
The ERD example "WordPress file-reference ERD" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Entity-Relationship Diagram (ERD) solution from the Software Development area of ConceptDraw Solution Park.
ERD
Chen Notation
The Chen Notation solution extends ConceptDraw PRO v10 software with rich collection of ERD samples and selection of special Chen's notation icons for effective database design, data modeling, and visual representation of relationships between the entities on the ER diagrams designed with Chen notation.
Entity-Relationship Diagram (ERD)
An Entity-Relationship Diagram (ERD) is a visual presentation of entities and relationships. That type of diagrams is often used in the semi-structured or unstructured data in databases and information systems. At first glance ERD is similar to a flowch
MS Visio Look a Like Diagrams
