Getting Started with IBM Data Studio for DB2

96 Getting Started with IBM Data Studio for DB2
After you select the tables, click OK. The overview diagram is generated, as shown in
Figure 2.30.
Figure 2.30 – Entity-Relationship diagram for selected tables
Using ER diagrams during development can be crucial to understand the database design
and increase your productivity.
Note:
You can better visualize your existing database structure by generating an ER diagram.
To create logical models using UML or to create physical models that can be deployed,
you need to use a data modeling product, like InfoSphere Data Architect. Refer to the
ebook Getting Started with InfoSphere Data Architect:
https://www.ibm.com/developerworks/wikis/display/db2oncampus/FREE+ebook+-
+Getting+started+with+InfoSphere+Data+Architect
2.7 Working with existing tables
Data Studio also has tools that assist in maintenance of the existing data, which is stored in
tables. In this section we will show how to edit the data contained in a table and look at the
DDL to recreate the table. The Run Statistics task will be covered in more detail in Chapter
3. Figure 2.31 shows the actions that you can run on database tables from the object list
editor.