Oracle Data Modeler - Diagram notation

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Is there a detailed notational guide for the Relational model diagrams generated by the Oracle Data Modeler?


I'm using Oracle Data Modeler to generate Relational Models for an existing database. It generated a diagram, but I'm not able to decode all the notations in the diagram.

Some of the notations are:

  1. arrows
  2. asterisks (red)
  3. Aphabetical notations (like P, F)
  4. Symbols (like diamond, key)
  5. Abbreviations (like IX)

By mere inference, the above correspond to:

  1. foreign key references
  2. ??
  3. P - Private key; F - Foreign key
  4. key - Private key
  5. ??

However, I'm wondering if there is a detailed notational guide for the Oracle Data Modeler?

I searched for it online, but could find none.

Red asterisks usually are mandatory, Diamonds in most ERDs indicate a relation to. pk and fk are private and foreign keys if I recall correctly. I'm not sure what you mean by arrows, do you mean crows feet notation?

[PDF] Data Modeler User's Guide, textbooks and on the Web. You can set the default notation type for new logical diagrams in the Data Modeler (page 1-32) (General Options, Diagram, Logical). Data Modeler supports the following alternatives for logical model diagramming notation: Bachman notation. Barker notation. Detailed explanations and examples of each notation style are widely available in textbooks and on the Web. You can set the default notation type for new logical diagrams in the Data Modeler (General Options, Diagram, Logical).

I think data modeler has a section in the settings to show which ER notation it is using. One can change or see the notation there. for my mac;

Preferences -> Data Modeler -> Diagram -> Logical Model 

there you can see the used notation. And so that you can check online for more information of the arrows etc..

Oracle Data Modeler - Diagram notation, Red asterisks usually are mandatory, Diamonds in most ERDs indicate a relation to. pk and fk are private and foreign keys if I recall correctly. Oracle SQL Developer Data Modeler is a free, stand-alone product with a full spectrum of data and database modeling tools and utilities, including modeling for Entity Relationship Diagrams (ERD), Relational (database design), Data Type and Multi-dimensional modeling, with full forward and reverse engineering and DDL code generation.

ERD Notations, diagrams (erd) based on any database which could be accessed with help of oracle sql A typical Entity Relationship Diagram (ERD) consists of two parts: Entities that do not depend on any other entity in the model for identification are  Manually in SQL Developer Data Modeler. By importing from Oracle Designer repository. See Section 1.6.6, "Importing an Oracle Designer Model". The data types model in SQL Developer Data Modeler combines two kinds of data: One data types diagram, plus an optional set of subviews and auxiliary displays, each associated with the appropriate

How to create ER diagram for existing database with Oracle SQL , from your existing database to your new relational model. To import schema select File -> Import -> Data Dictionary (or press Ctrl + Shift + B). Manually in Data Modeler. By importing from Oracle Designer repository. See Section 1.6.6, "Importing an Oracle Designer Model". The data types model in Data Modeler combines two kinds of data: One data types diagram, plus an optional set of subviews and auxiliary displays, each associated with the appropriate diagram/subview. Data type object

Data Modeling using SQL Developer Data Modeler – SphereGen, Because the data model uses easily understood notations and is the entity relationship model or Entity Relationship Diagram (ERD), and  2 Data Modeler Tutorial: Modeling for a Small Database In this tutorial, you will use Data Modeler to create models for a simplified library database, which will include entities for books, patrons (people who have library cards), and transactions (checking a book out, returning a book, and so on).

[PDF] Introducing Data Modeling and Design with Oracle SQL , Introduction to SQL Developer Data Modeler. – Audience Print diagrams and consult model properties. – Supports Notations (Barker, Bachman). Exporting  schema visualizer allows you to create fully featured entity relationship diagrams (erd) based on any database which could be accessed with help of oracle sql developer. tables can be added to an existing diagram by dragging and dropping them from the sql developer db objects navigator.

Comments
  • Also letter U exists there, it means Unique.