Solved

PL/SQL Group by

Posted on 2016-08-11
2
49 Views
Last Modified: 2016-08-11
Hello experts,

So it is needed to know which Owners have the most Protocols
and how many.
A query was crafted

Select owner_ID, SUM(protocol_id) as CNT
from ccm_protocol
group by owner_ID
--having SUM(protocol_id) between 1 and 601000
order by CNT desc

which returned
Owner_ID  CNT
258490      2631271323
306118      2435400026
296588      2261418059
207643      1916887537
212733      1866463289
202729      1729376813
430247      1690954678
213027      1670415116
213978      1601271602
257757      1593747213

Which blew my mind cause I think this says
that Owner_ID 258490 has 261 million protocols.
So the query was input

Select Owner_id, protocol_id
from ccm_protocol
where owner_id = 258490

which returned 1872 rows.

So there is something wrong with the GROUP BY query.

How can I get a list of OWNER_IDs with the number of
Protocols for each OWNER_ID?

Thanks.

Allen in Dallas
0
Comment
Question by:9apit
2 Comments
 
LVL 142

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 41752225
you have to count and not to Sum

Select owner_ID, count(protocol_id) as CNT
from ccm_protocol
group by owner_ID
--having SUM(protocol_id) between 1 and 601000
order by CNT desc

Open in new window

0
 

Author Closing Comment

by:9apit
ID: 41752837
Well done. 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

Suggested Solutions

Title # Comments Views Activity
What is the version of ojdbc6.jar 2 60
Oracle and DateTime math 6 39
Character matching different date formats for dates between 6 46
Oracle DBLINKS From 11g to 8i 3 35
Working with Network Access Control Lists in Oracle 11g (part 2) Part 1: http://www.e-e.com/A_8429.html Previously, I introduced the basics of network ACL's including how to create, delete and modify entries to allow and deny access.  For many…
Configuring and using Oracle Database Gateway for ODBC Introduction First, a brief summary of what a Database Gateway is.  A Gateway is a set of driver agents and configurations that allow an Oracle database to communicate with other platforms…
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.
This video explains what a user managed backup is and shows how to take one, providing a couple of simple example scripts.

777 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