DO NOT BUY - This book is not useful
Mostly, this book is simply a rehash of material that is presented better in Sybase's own Performance & Tuning guide.Sybase ASE 12.5 Performance and Tuning presents little if any useful tuning advice. What advice is present ranges from flat out wrong (e.g. "If Cache Search Misses falls below 20%, consider adding physical memory" - page 288) to mystically useless (e.g. "Create and use temp tables outside of each other" - page 228).Further, the depth of coverage is quite poor. For example, there are only thirteen pages dedicated to locking, four to tempdb, and just one for log management (yes, only one page discussing logs!!).Finally, Sybase ASE 12.5 Performance and Tuning has many grammatical mistakes. Typically I can look past such a minor annoyance, but with this book's limited utility, this is the final slap in the face.