[ZDP] BackTalk to Document The Zope Book (2.5 Edition)/Relational Database Connectivity

nobody@nowhere.com nobody@nowhere.com
Tue, 10 Sep 2002 06:30:26 -0400

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZopeBook/current/RelationalDatabases.stx#3-106


      A transaction is a group of operations that can be undone all at
      once.  As you saw in Chapter 1, "Introducing Zope", all changes
      done to Zope are done within transactions.  Transactions ensure
      data integrity.  When using a system that is not transactional
      and one of your web actions changes ten objects, and then fails
      to change the eleventh, then your data is now inconsistent.
      Transactions allow you to revert all the changes you made during
      a request if an error occurs.

        % Anonymous User - Sep. 10, 2002 6:30 am:
         The transactions are covered in Chapter 2 with the Undo concept, not in Chapter one!