The error is in your code, you are explicitly telling oracle that the bind
variables are varchar2, so why would Oracle evaluate it?
Try this ...
DECLARE
nnum1 NUMBER;
nnum2 NUMBER;
nresult NUMBER;
BEGIN
BEGIN
nnum1 := 0;
EXECUTE IMMEDIATE
USING nnum1, OUT nresult;
dbms_output.put_line(TO_CHAR(nresult));
END;
BEGIN
nnum1 := 1;
nnum2 := 1;
EXECUTE IMMEDIATE
'begin SELECT :1 + :2 INTO :0 FROM dual; END;'
USING nnum1, nnum2, OUT nresult;
dbms_output.put_line(TO_CHAR(nresult));
END;
END;
/
Raj
______________________________________________________
Rajendra Jamadagni MIS, ESPN Inc.
Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN Inc.
QOTD: Any clod can have facts, but having an opinion is an art!
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