I had the opportunity to work with various versions of Oracle Database (Oracle 8, Oracle 8i,
Oracle 9i, Oracle 10g and Oracle 11g). There are two things that I liked most doing with
Oracle database over a period of time, writing the entire logic in a single and most
elegant SQL and performance tuning of the SQLs. I had a fair share of looking at the TKPROF
output files for tuning the applications and in the process, I have developed
TKPROF output trace file viewer.