Solved

WebFocus to DB2 conversion

Posted on 2014-04-30
5
951 Views
Last Modified: 2014-05-15
Hello,

I am having trouble converting the LAST function in WebFocus to DB2. The 'last' function in webfocus returns the last value returned for a column.

for example in WebFocus:
somevar/A5 = if (col_a ne last col_a) then 'AB' else 'CD'

what would be the equivalent to that in DB2?
0
Comment
Question by:CodeWrangler
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 18

Expert Comment

by:Dave Ford
ID: 40032807
Could you explain the LAST function a bit more? Your example doesn't appear to reference that function.
0
 
LVL 45

Expert Comment

by:Kent Olsen
ID: 40032814
Hi Wrangler,

There isn't an equivalent in DB2.  If you're using cursors to view rows one at a time, the easiest way is to just save the column value into a "last" variable whenever you fetch another row.


Kent
0
 

Author Comment

by:CodeWrangler
ID: 40032828
Kent - yeah, im starting to think that might be the way to go about it..

Dave - note the word 'last' enclosed in the if statement. you can look up some info on it using google. Basically, if the last value of col_a matches the current value of col_a then do something.
0
 

Author Comment

by:CodeWrangler
ID: 40033006
Kent - do you have any good examples (resources) of DB2 cursors?
0
 
LVL 45

Accepted Solution

by:
Kent Olsen earned 500 total points
ID: 40033021
Here's a really short example that I copied from elsewhere...


create procedure DEPARTMENT_SALARY
  (in v_depno varchar(3), out v_totalsalary decimal(9,2))
begin
  declare SQLCODE  integer     default 0;
  declare i        decimal(9,2);
  declare mycur cursor for
      select SALARY
      from EMPLOYEE
      where WORKDEPT = v_depno;

  set v_totalsalary = 0;
  open mycur;
  fetch mycur into i;
  while SQLCODE <> 100
   do
     set v_totalsalary = v_totalsalary + i;
     fetch mycur into i;
  end while;
  close mycur;
end!
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Many companies are looking to get out of the datacenter business and to services like Microsoft Azure to provide Infrastructure as a Service (IaaS) solutions for legacy client server workloads, rather than continuing to make capital investments in h…
A company’s centralized system that manages user data, security, and distributed resources is often a focus of criminal attention. Active Directory (AD) is no exception. In truth, it’s even more likely to be targeted due to the number of companies …
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…

728 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