I know that stored procedures in Oracle, can be coded in PL/SQL and Java.

May I know what are the advantage and disadvantages.

I am thinking taking certification for PL/SQL but I find that there are not much advantage of PL/SQL over Java SP.

2ndly I find that most of my developers are java pro-efficient, therefore is make more sense to develop SP on Java so they don't have to learn another language. (reduce development time and complication)

1) So should I stick to writing SP in Java?