Customer Rating: 
Summary: Well worth the time it takes to read it
Comment: I'm primarily a developer, but I also do a little bit of DBA stuff. This book has lots of info for developers, and apparently lots for DBAs too -- it's the book our primary DBA recommended to me. If you need to know something about Informix, chances are it's explained in this book.
Customer Rating:
Summary: Informix unleashed never should have be released
Comment: If you have had experience with other relational databases. i.e. SQL Server, Sybase. You may be farmiliar with Unleashed books. This one is nothing like them. The enire books gives a general overview of Informix and 90% of the book covers the Informix-4GL There is little to no examples for SQL and was not worth the $40.00 I spent on it.
Customer Rating:
Summary: lots of technical tips from experts !
Comment: This book is a great resource. It's not one to read cover to cover, but rather one to turn to when you have a question. It's helped me at work in critical situations.
Customer Rating:
Summary: Excellent
Comment: For someone who is new to Informix but has experience with other RDBMS's, this book is just what is needed.It overviews the Informix product line and gives detailed instructions for various tasks such as using ontape to perform a backup, understanding the onconfig parameters and much more.
This book lives up to the UNLEASHED! family name.
Thanks!
Customer Rating:
Summary: OK, but not to the usual standard of the "Unleashed" series
Comment: The book is organised into many topic-specific chapters, written by quite a number of different authors. The quality of the content and prose is therefore rather variable, and some subjects are covered to different depths by different authors, giving a rather disjointed feel. However most people, even Informix professionals, will find some things of value in this book.The book comes with a CD-ROM containing a example scripts/SQL etc: these vary from the trivial to the very useful.
Some sections, noticeably that on Tech Support, are next to useless to non-US readers, containing as they do information only applicable to that country. It leaves the impression the editors were either too ignorant or, more likely, too lazy to consider the fact that this is supposed to be an international publication.
