Shi Yunhua , is graduated from Xi'an Jiaotong University in 2005, then has been working on the third-party company for maintenance service of Oracle database, Now is a member of the Oracle Exadata expert group. Have a wealth of experience in Engineered Systems, like as Exadata 、ODA and so on, has published two books <Exadata Implementation and Maintenance Guide> and <Exadata performance tuning>.WeChat ID: 15153132360