Solved

NO_DATA_FOUND

Posted on 2006-06-30
6
363 Views
Last Modified: 2012-06-27
Hi,
This code is a pert of PL/SQL proc

str10i := 'select * from RDR_ODS.period_info  where seriesname='||''''||recpr.rseriesname||''''|| ' and  period='||''''||str9i||''''||' and deleted=''N''';

now what all i want if there is no record retuened thwn do
err_status=true
else err_status=false

The problem is i am using exception to do so.

......
.....
begin
execute  immediate str10i;
 exception
 when NO_DATA_FOUND then
                     
err_status := 'TRUE';
                   
end;
even though returned rows are 0 it doesnot go to exception.
It skips the exception why?
Please respond ASAP
0
Comment
Question by:avi_ny
  • 3
  • 2
6 Comments
 
LVL 14

Expert Comment

by:sathyagiri
ID: 17021674
Try this
declare a record to store your RDR_ODS output

declare
var1 RDR_ODS.period_info%rowtype;

Then
str10i := 'select col1 from RDR_ODS.period_info  where seriesname='||''''||recpr.rseriesname||''''|| ' and  period='||''''||str9i||''''||' and deleted=''N''';

begin
execute  immediate str10i into var1;
 exception
 when NO_DATA_FOUND then
               
err_status := 'TRUE';
                   
end;




0
 
LVL 14

Accepted Solution

by:
sathyagiri earned 500 total points
ID: 17021678
Or if you just want to to know if your query returns any thing change it as follows

declare
cnt number;

Then
str10i := 'select count(1) from RDR_ODS.period_info  where seriesname='||''''||recpr.rseriesname||''''|| ' and  period='||''''||str9i||''''||' and deleted=''N''';
execute immediate str10i into cnt;
if (cnt > 0) then // records found
//logic
else
//logic
end if
0
 
LVL 19

Expert Comment

by:actonwang
ID: 17022147
see this:

http://www.experts-exchange.com/Databases/Oracle/Q_21904208.html

I would still recommend to use my pl/sql code as:

declare
_count number;
begin
select count(*) into _count from (select * from <your table> where rownum=1);  
if _count = 0 then
DBMS_OUTPUT.PUT_LINE('no record');
else
DBMS_OUTPUT.PUT_LINE('some record');
end if;
end;
/
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 19

Expert Comment

by:actonwang
ID: 17022154
for your case, it would be:
//////////////////////////////////////////////////////////

declare
   _count number;

.....

str10i := 'select * from RDR_ODS.period_info  where seriesname='||''''||recpr.rseriesname||''''|| ' and  period='||''''||str9i||''''||' and deleted=''N''';

execute immediate ' select count(*) from ('||str10i || ' and rownum =1)' into _count;

if _count = 0 then
  err_status := 'TRUE';
else
   err_status := 'FALSE';
end if;

....
0
 
LVL 19

Expert Comment

by:actonwang
ID: 17022157
it would be lot faster if your query return a lot of records.
Also notice I didn't change your original str10i and I am ONLY using a subquery so you don't need to modify your original query.

Acton
0
 

Author Comment

by:avi_ny
ID: 17023481
Hi Satayagri,
Thanks.
You saved the weekend.
it worked.
But still I wonder why doesn't my concept worked.
After all  count 0 means NO_DATA_FOUND exception. Well send me if you got something.
Thanks .
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Truncate is a DDL Command where as Delete is a DML Command. Both will delete data from table, but what is the difference between these below statements truncate table <table_name> ?? delete from <table_name> ?? The first command cannot be …
Note: this article covers simple compression. Oracle introduced in version 11g release 2 a new feature called Advanced Compression which is not covered here. General principle of Oracle compression Oracle compression is a way of reducing the d…
Via a live example show how to connect to RMAN, make basic configuration settings changes and then take a backup of a demo database
This video shows how to configure and send email from and Oracle database using both UTL_SMTP and UTL_MAIL, as well as comparing UTL_SMTP to a manual SMTP conversation with a mail server.

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question