Christopher Allen是Oracle Certified Professional DBA和應(yīng)用程序開發(fā)專家。Allen已設(shè)計(jì)并構(gòu)建了大量定制的應(yīng)用程序,為眾多客戶和學(xué)員講授專業(yè)的計(jì)算機(jī)課程,并著有多本暢銷圖書,包括Oracle Certified Professional FinanciaL Applications Consultant Exam Guide,Introduction to Relational Databases等。