Select ER diagram and you will get a new menu Database. Next select Reverser engineer. Next just follow the steps by providing the database login credentials. You have to create a DSN first.
How to select ER diagram u mean that we need to select generated ER-diagram from TOAD.But i am unable to generate for whole shema .Only it is getting generated for only one table.could you plz suggest how to go on.
In TOAD, to generate the ER Diagram, Choose the Schema from the Drop down, and then select a table-> press Shift and scroll down( This will select all the tables in that schema) - then click on the ER Diagram ICON present on the Menu. The Generated ER diagram will have all the tables.