hy Daniel,
I'm a java programmer too and I have no difficulties using SQL, but I must admit that I can improve -my skill set- through the certification programs for SQL/PL developers.
I persue the Oracle PL/SQL Developer Certified Associate. In order to get this certification I need to approve two certifications:
1. First, any one of these:
EXAM
1Z0-007: Introduction to Oracle9i SQL®
or
1Z0-047: Oracle Database SQL Expert
or
1Z0-051: Oracle Database 11g: SQL Fundamentals I
2. Finally any one of these:
EXAM
Program with PL/SQL 1Z0-147
OR
Oracle Database 11g: Program with PL/SQL 1Z0-144
I personally will take:
The 1Z0-047 Oracle Database SQL Expert and the Oracle Database 11g: Program with PL/SQL 1Z0-144
...That is, I favor the newest certification over the older.
I must say that in the process of preparation I have learned more techniques I was not aware of and that I consider to be very useful.
My advice: this certification is worth taking -PL/SQL Developer Certified Associate- and you don't need to be a SJCP to take it.
For more information look at:
PL/SQL Developer Certified Associate
bye.