
You have:
Configured your application server in the SAP NetWeaver Developer Studio
More information: Configuring the Application Server in the Developer Studio
Defined your database objects in Java Dictionary
During deployment of Dictionary development components (DCs), the database object definitions residing in the DCs are translated from Java Dictionary into relevant statements for the database concerned - provided the objects have been newly created. If an object has been changed, the Dictionary version is compared with the database version. For each DDL statement, the necessary structure changes are executed on the database.