intro.so

berkeley db 4.6.21的源码。berkeley db是一个简单的数据库管理系统

m4_comment([$Id: intro.so,v 10.40 2006/11/13 18:05:03 bostic Exp $])

m4_ref_title(m4_tam Applications,
    Transactional Data Store introduction,
    @Transactional Data Store, cam/app, transapp/why)

m4_p([dnl
It is difficult to write a useful transactional tutorial and still keep
within reasonable bounds of documentation; that is, without writing a
book on transactional programming.  We have two goals in this section:
to familiarize readers with the transactional interfaces of m4_db and
to provide code building blocks that will be useful for creating
applications.])

m4_p([dnl
We have not attempted to present this information using a real-world
application.  First, transactional applications are often complex and
time-consuming to explain.  Also, one of our goals is to give you an
understanding of the wide variety of tools m4_db makes available to you,
and no single application would use most of the interfaces included in
the m4_db library.  For these reasons, we have chosen to simply present
the m4_db data structures and programming solutions, using examples that
differ from page to page.  All the examples are included in a standalone
program you can examine, modify, and run; and from which you will be able
to extract code blocks for your own applications.  Fragments of the
program will be presented throughout this chapter, and the complete text
of the m4_linkweb(transapp.cs, [example program]) for m4_posix1_name
standard systems is included in the m4_db distribution.])

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