Need help in understanding oracle plsql design phase.

Question

I am new user learning oracle plsql. I wanted to know following points.
1) Is there any process we follow before developing oracle procedures.
2) Is there any algorithm, flowchart, diagrams we use for orcale procedure development.
3) What should I learn in order to start developing oracle procedures.
flow charts
data flow diagrams
In there any standard used in industry ? any pointers/comments would be helpful

Answer 1

1) It is different in every shop and even within a shop with different developers. The best thing for someone learning is to read the books and blogs of Tom Kyte and Steven Feuerstein and choose one. Though I must confess now that I have become a fan of Bryn Lewellyn's White Papers I may never go back.
Try one out yourself:
http://www.oracle.com/technology/tech/pl_sql/pdf/doing_sql_from_plsql.pdf
PS: No one knows PL/SQL better than Bryn.
2) No. Every procedure is different. What one writes to solve one business problem may bear no relationship to what one writes to solve another. My caveats would be:
A. SQL before PL/SQL
B. Arrays before single row processing (that means FORALL and BULK COLLECT)
C. Don't write line 1 without reading Tom Kyte's observations about bind variables
3) In this order:
A. anonymous blocks
B. how to declare constants
C. how to declare variables
D. how to create control structures
E. exception handling
F. bulk collect and forall statements
G. DBMS_SQL built-in package
H. Native dynamic SQL
You will find demos of all of the above here:
www.morganslibrary.org/library.html