[firebird-support] for select stored procedure question

[Raith,Daniel]

I want to write a stored procedure that updates two columns (all records) in a 
table to initial caps or camel case.

For example: "testing a test" -> "Testing A Test"

I wrote a test procedure that accepts an input varchar, changes the string to 
initial caps and returns the output string.  This works great.  But now I want 
to create another stored procedure that contains a FOR SELECT on the table I 
want to update.  However reading this page: 
http://ibexpert.net/ibe/index.php?n=Doc.FORSELECTINTODO  mentions this caution 
statement:

Caution! If the value of a PSQL variable that is used in the SELECT statement 
changes during execution of the loop, the statement may (but will not always) 
be re-evaluated for the remaining rows.

To me, this means I should not create this procedure:

create procedure InitialCapsMyTable
as
begin
   for select a, b from MyTable
     into :aa, :bb
   do
   begin
     :aa = initial_caps_proc( :aa );
     :bb = initial_caps_proc( :bb );
   end
end

Questions

1)      Am I correct that the caution mentioned above applies my example?

2)      Is there a better way to accomplish changing a column (all records) to 
initial caps?

I'm using FB1.5,

Daniel