How to pass a where-clause to a procedure

Question

I have to develop a stored procedure where a part of the where-clause of the select of a cursor depends on the input parameter.
My procedure should be something like this:
procedure myproc (WHERECLAUSE     in varchar2(100)) is
begin
declare
cursor mycur is
select *
from mytable
where a = b
and c = d
and <WHERECLAUSE>
begin
open mycur;
loop
fetch ...
end;
end myproc;
In order to join the parameter WHERECLAUSE to the select of the cursor I've thought of using the dynamyc sql.
My problem is if I have to use a dynamyc sql, should I put the whole of my code (declaration of cursor and the following statements) in a uinque variable to be executed by the dynamyc sql?
What do you adivise me to use?
Thanks in advance!

Answer 1

Hi,
In order to retrieve the fields as you had mentioned
QUERY_STR := 'SELECT field1, field2 FROM TABLENAME' || WHERE_STR;
OPEN c FOR query_strtry to use this
declare variables
var1 <data type of field1>
var2 <data type of field2>
QUERY_STR := 'SELECT field1, field2 FROM TABLENAME' || WHERE_STR;
OPEN c FOR query_str
LOOP
    FETCH c INTO var1, var2;
    EXIT WHEN c%NOTFOUND;
    <do what ever you want with those fields>
END LOOP;
CLOSE c;Hope this might help you
cheers
VT