Printing count of records before and after a command in a PL/SQL

Question

Hi: I have the following PL/SQL script
declare
l_sysdate date := sysdate;
begin
INSERT INTO a_mnsnotes SELECT * from mnsnotes where TKT_NBR in (
select TKT_NBR from mnsinterface where MNS_STATUS=5 and CLOSED_DATE < (((l_sysdate-30) - to_date('01-JAN-1970','DD-MON-YYYY')) * 86400));
delete from mnsnotes Where
TKT_NBR in (select TKT_NBR from mnsinterface where MNS_STATUS=5 and CLOSED_DATE < (((l_sysdate-30) - to_date('01-JAN-1970','DD-MON-YYYY')) * 86400));
commit;
end;
/I want to assign the number of records in the two table (a_mnsnotes and mnsnotes) to two variables so I can print in one line the numberof records for both tables before and after the procedure. How do I set the output of a sql command (select count(*) from mnsnotes) to a variable within the pl/sql?
Thanks
Ravi

Answer 1

Also I'm guessing this:
(((l_sysdate-30) - to_date('01-JAN-1970','DD-MON-YYYY')) * 86400);
is because closed_date is stored as number of seconds since 01-JAN-1970, which should be turned into a date ASAP. Never store dates as anything other than DATE datatype (or maybe TIMESTAMP in more recent versions).
It's not right, as sysdate will have a time component so if this code is run at 8am it will give different results to if it is run at 9pm. And not all months have 30 days.
Have you considered TRUNC(add_months(sysdate,-1)) instead of l_sysdate-30 ?