base schema. In many enterprises there are multiple applications using the database; when v nge the database for one application, this change should not break other applications. We cat eve backward compatibility by maintaining a transition phase for the change, as described i il in Refactoring Databases [Ambler and Sadalage]. uring a transition phase, the old schema and the new schema are maintained in parallel and lable for all the applications using the database. For this, we have to introduce scaffolding as triggers, views, and virtual columns ensuring other applications can access the database ma and the data they require without any code changes.
base schema. In many enterprises there are multiple applications using the database; when v nge the database for one application, this change should not break other applications. We cat eve backward compatibility by maintaining a transition phase for the change, as described i il in Refactoring Databases [Ambler and Sadalage]. uring a transition phase, the old schema and the new schema are maintained in parallel and lable for all the applications using the database. For this, we have to introduce scaffolding as triggers, views, and virtual columns ensuring other applications can access the database ma and the data they require without any code changes.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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