I am a professional DBA and can help you in anything related to databases. I can help you migrate from one version of Oracle to another in no time. If you face any issues in PL/SQL say procedures, packages or anything I am their to help you.
I can also help you in data mining like creation of clusters and retrieval of data from them.
Apart from this I can also help in JAVA and advanced JAVA i.e. in web services , servlet programming, socket programming ,etc.