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The first half of Programming The Perl DBI covers non-DBI database types, pros and cons and data handling. Perl is used to create, explain and work with these. It's assumed that the reader is a competent enough Perl programmer to write the scripts as well as follow them. The point is to familiarise you with database technologies.
Having dealt with SQL and other database related issues in chapter three, the authors introduce the DBI, demonstrate database connection and error handling in chapter four. The last four chapters cover database interaction, advanced DBI features, ODBC and finally shell and database proxying. Three appendices cover the DBI specification, driver and database characteristics and the ASLaN Sacred Site Charter. (The authors are megalithic site aficionados and use UK megalithic sites as database examples throughout the book).
Descartes and Bunce's book is a rare combination--an entertaining and accessible guide to using Perl DBI that's also a readable and often amusing introduction to database technology.--Steve Patient
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This is not a good book, IF:
- You want to learn how to program databases from the web (the widest application of Perl today is covered on one example/page and is an absolute joke).
- You want to learn how to program databases other than Oracle (the massive Windows market, and other markets are left to you, the reader, to extrapolate techniques from the book to practice).
This is a terrible book, IF:
- You are a Perl/programming beginner.
- You want to learn about databases.
- You want to troubleshoot your application (to not include much more driver specific material, when the DBI relies so heavily on the database's driver, means that essentially the book's use is very limited in the real world).
The DBI is a great tool in the Perl armoury; this book does not do it justice. You will learn more from the online documentation and the DBI mailing list than you could ever get from here - save your money (The forthcoming 'Web Databases with Perl' from Manning looks far more promising, but it's not out until Oct 2000).
Of course, if the book is supposed to be nothing more than a guide to the DBI in the very limited scope of being a recycle and slight expansion of existing material, then you can't fault it, and it is a nice read, but otherwise... O'reilly what were you thinking.
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