Abhishek Tyagi has over 8 years of experience as an Oracle DBA. He has extensive experience administering Oracle databases from versions 9i through 11gR2 on Linux, Solaris, and Windows platforms. His responsibilities include database administration, designing backup and recovery strategies, performance tuning, capacity planning, and training new DBAs. He has expertise in areas such as RAC, ASM, backup and recovery, cloning, and migrating databases across platforms.