Query data returned by CURSOR FOR LOOP - oracle

Question

I need some assistance with the following PL/SQL code which displays the time difference in minutes between two date values. The first part before the IF-Statement returns the needed information, but the challenge comes in when i'm trying to write an IF-Statement to display the time difference for only those jobs that have exceeded 15 Minutes then send Email notification through Exchange Server.
Your assistance is appreciated in advance.
Declare
l_found boolean :=false;
Cursor C5
is
(SELECT CASE LENGTH(JCSBMTIME)
WHEN 0 THEN
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('000000',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS')
,'DD-MON-YY HH24:MI:SS')) * 1440),2)
WHEN 1 THEN
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('00000',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS')
,'DD-MON-YY HH24:MI:SS')) * 1440),2)
WHEN 2 THEN
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('0000',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS') ,'DD-
MON-YY HH24:MI:SS')) * 1440),2)
WHEN 3 THEN
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('000',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS') ,'DD-
MON-YY HH24:MI:SS')) * 1440),2)
WHEN 4 THEN
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('00',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS') ,'DD-
MON-YY HH24:MI:SS')) * 1440),2)
WHEN 5 THEN
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('0',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS') ,'DD-
MON-YY HH24:MI:SS')) * 1440),2)
ELSE
round(((sysdate - to_date
(TO_DATE(TO_CHAR(to_number(JCSBMDATE)+1900000),'YYYYDDD') || ' ' ||
to_char(to_date(CONCAT('',JCSBMTIME),'HH24:MI:SS'),'HH24:MI:SS') ,'DD-MON-
YY HH24:MI:SS')) * 1440 ),2)
END AS "DATETIME_DIFF",
JCUSER, JCJOBNBR, JCSBMTIME FROM SVM900E1.F986110
WHERE JCSBMDATE = (TO_CHAR(sysdate,'YYYYDDD')-1900000)
AND JCJOBSTS in ('P','S','W'));
Begin
For Y in C5
Loop
l_found := true;
dbms_output.put_line(Y.DATETIME_DIFF||' '||Y.JCUSER||' ' ||Y.JCJOBNBR||'
'||Y.JCSBMTIME);
End loop;
if not l_found
Then
dbms_output.put_line('No records found');
End if;
Case Y.DATETIME_DIFF when > 15
Then
dbms_output.put_line(Y.JCUSER||' ' ||Y.JCJOBNBR||' '||Y.JCSBMTIME);
Else 'No records';
End case;
End;

Answer 1

Pay attention to your Y iterator scope. You are trying to use it out of loop statement.
You code should be like this. I omit part of cursor declaration
--at first init to false
l_found := false;
for Y in your_cursor loop
-- if we are in loop , we are found a record , change value to true
l_found := true;
check conditions, do output etc...
end loop;
-- if cursor have no result
if not l_found then
dbms_output.put_line('No records found');
end if;