Adding the diagram to the project manager offers an easy way of ever the template or sharing as a collaborative resource. Your ER diagrams can be used as a template for starting queries. The lookup values can now be used in the Query Builder where condition. Now you no longer have to remember what each code means. Next, you can look at the values side by side. Here you can select the column with the codes and also the column with their description. The results of the search will be listed in the tables area.īelow that are the column details for the table. Otherwise, you can search all tables for a column with that name. In cases where a column has a foreign key associated with it, no search needs to be done. You can also find the lookup table for column from the right click menu. Manage the hidden columns from the Hidden Column Editor. (The foreign key in Child table is a part of the primary key. As soon as you create an identifying relationship, Toad Data Modeler automatically adds a copy of the primary key of the Parent table to the Child table - Primary Foreign Key (PFK). Foreign keys (FK, graphically marked by green key). Notes can be added for the entire diagram or associated to a particular table. There are two types of foreign keys in Toad Data Modeler: Primary Foreign keys (PFK, graphically marked by blue key). Toggling the column details or dependencies gives you more information about the columns. From the right click menu, there are several options- show or hide column details or dependencies, automatically resize the table, find lookup table, add notes, or hide a column. A depth of one shows the first level foreign keys. To change the depth of the dependencies, use the dropdown. The diagram will add the dependent tables and their relationships. To use the ER Diagammer, drag tables from the object palette onto the viewing area. This is very useful when studying a set of tables for use and building queries. The ER Diagram tool offers a visual representation of database relationships.
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