I am just on the second chapter of this book but I 'm lovin' every bit of text I read. I am a guy who is easily put off by too much and excessive theoretical Oracle textbooks. I have so many of them that I have not been able to read because I lost hope after reading a few pages. Not this ONE. As a DBA who is looking for the next push and direction in my career, this comes handy and timely too!
If you're an oracle dba you may have come across SQLT via oracle support for tuning sql queries (MOS Doc Id: 215187.1). This book is a practical guide in installing and using the tool with worked through examples. I found it more accessible than the documentation provided with the utility itself.