SAP R/3 System Administration by S. Hagemann
This book is an essential foundation for IT managers, technical consultants, and R/3 System administrators. With first-hand knowledge gathered from Global Support specialists working on the implementation of over 20,000 R/3 Systems, this book teaches you how to perform your daily system administration tasks with optimal efficiency.
This book also helps to prepare you to qualify as a Certified Technical Consultant (CTC) for R/3 Release 4.6 and Enterprise.