The murder of God-fearing, bible-quoting, partially deaf Thomas Thomas at the branch of Star Stores he managed in Garnant, South Wales has remained an unsolved mystery since it happened in 1921. His body was found on the morning of Sunday February 13th, his head smashed, his throat cut and with a stab wound to the stomach, any of which could have killed him. Over 126 was missing from the store safe, yet there were oddities about the attack which suggested this was more than a robbery that went tragically wrong: Thomas had been gagged with cheese, and there was no tear in his trousers, shirt and waistcoat above the stab wound. What circumstances could explain these things? Garnant was in shock, and Scotland Yard arrived in the form of DI George Nicholls. A number of suspects were identified but none seemed to have the telling combination of motive and opportunity. Despite the expertise of Nicholls the case was eventually abandoned and the killers secret died with him. Until now. In classic cold case fashion journalist Steve Adamss extensive researches have finally identified the killer, who is revealed at the end of the book, after a thorough reconstruction of the murder and the subsequent investigation. This is the story of a terrible crime in an almost archetypal Welsh mining town. It was a crime symbolic of a turning point in early twentieth century Wales, as the coal industry declined and its recently assembled townships came to terms with their uncertain futures and sought new identities.
This concise book contains detailed information about Oracle internals -- information that's not readily available to Oracle customers. It lays a foundation for advanced performance tuning of the Oracle database. Based on Oracle8i release 8.1, the book describes many of the secrets of Oracle's internal services: data structures, algorithms, and undocumented Oracle system statistics. Main topics include: Waits - how Oracle processes communicate via semaphores, and how to use the Oracle wait statistics to identify the source of performance problems. Latches - how they keep multiple processes from inspecting protected data structures at the same time, and how to examine and control latch behavior and statistics. Locks - how they work with latches to protect data structures (locks allow multiple sessions to share resources in some cases), and how locks affect performance. There is also a detailed discussion of instance locks, which are used in parallel server environments. Memory - how Oracle uses memory (e.g., the various elements of the System Global Area), and how Oracle dynamically allocates and manages memory. Oracle8i Internal Services is aimed especially at administrators and developers who need detailed internal information to do advanced performance tuning. The book will expand your repertoire of tuning solutions and troubleshooting techniques by explaining how you can use Oracle's hidden parameters and undocumented system statistics to best advantage. NOTE: The author has collected the scripts he has developed for tuning and analysis into a toolkit (known as APT, for Advanced Performance Tuning). These scripts access the Oracle X$ tables directly and provide information not otherwise available. The scripts are available to readers for free from the O'Reilly web site.
Un poètic conte on els més petits descobriran el poder de la diferència i de la imaginació. Hug i Angelina, els dos protagonistes d’aquesta història, converteixen les seves peculiaritats en motiu de