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