Fig 1: Select Database Navigator Maps
Once you select database navigation maps you will see existing maps in right hand side pane. Double clicking on the map you can open it and see. But let see how you can design new database using this tool. Right click on Database Navigation Maps and browse New -> Map.
Fig 2: Create New Database Navigation Map
This will open Database Navigator window which allow you to design your entire database. There it will list all the existing schemas and you can design your database under any schema listed there.
Fig 3: Database Navigator Window
Once you create new element it is again open same window as iSeries Navigator opens to create new elements. I have already discussed to work them and design your database. You read more details from this article.
Once you designed you database using this tool it will look like this.
Fig 5: Sample Database Navigator Map
Final step is save the successfully design database into you DB2 database management system. Select save option from the file menu then give a name for your map select schema in which you need to save the database.
Later if you want you can change this design any time and save it. Please note that if you save the Database Navigator Map that mean your are physically change your database.
While your friend is spending days to develop a database, you can simple develop your database withing few minutes and have a relax. So try and see how you can simplify your work and have a fun.
If you have any questions you can post them under comments. I will reply them.