2 Step table maintenance view with dates

In this table maintenance view, START DATE and END DATE for the record are displayed in the Overview of a 2-step maintenance screen in transaction SM30. 

However this does not happen by accident and you MUST select a specific domain in your table, otherwise, the dates are simply ignored by the generation software within SAP

In this example, for the screen to work, the domains used are BEGDA and ENDDA

In fact, SAP will only allow the following domain names with a DATUM type domain, and all others are ignored by the generator;

Read this blog http://scn.sap.com/thread/557840 for more details.