Solved

How to round based on a number range

Posted on 2013-01-11
7
422 Views
Last Modified: 2013-01-16
Gurus,

I need some help rounding based on a number range.

Example1:

Retail Price: 100.00
Sale Price: 42.00

Dollar % Saved: 58

The logic here is that if the % saved is between 55 - 59 then
Dollar % Saved = 60

Example2:

Retail Price: 100.00
Sale Price: 48.00

Dollar % Saved: 52

The logic here is that if the % saved is between 51 - 54 then
Dollar % Saved = 55

How do I accomplish this in my trigger?

create or replace
TRIGGER SALE_CALCULATIONS BEFORE
  INSERT OR
  UPDATE ON Prs FOR EACH Row
 
BEGIN
:New.Prsvf11c := ((:New.Prsprsc - :new.prsvf1c)/:new.prsprsc *100)||'%';
END;
0
Comment
Question by:xbox360dp
  • 4
  • 2
7 Comments
 
LVL 73

Expert Comment

by:sdstuber
ID: 38768844
always round up to the nearest "5"  ?
0
 

Author Comment

by:xbox360dp
ID: 38768863
Exactly ... strange I know.
0
 
LVL 73

Expert Comment

by:sdstuber
ID: 38768889
:new.prsvf11c      :=
        (FLOOR(((:new.prsprsc - :new.prsvf1c) / :new.prsprsc * 100) + 4 / 5) * 5) || '%';
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 73

Expert Comment

by:sdstuber
ID: 38768901
To summarize the key part: rounding "n" UP to the nearest "5"

FLOOR((n + 4) / 5) * 5
0
 

Author Comment

by:xbox360dp
ID: 38768934
Sdstuber,

Using the your code ... if the % saved is 52 I get "56" instead of "55" ... if the % saved is 58 I get "62" instead of "60".
0
 
LVL 23

Expert Comment

by:OP_Zaharin
ID: 38769037
- try use CEIL:

select CEIL(<numberhere>/5)*5 from dual
0
 
LVL 73

Accepted Solution

by:
sdstuber earned 500 total points
ID: 38769066
the formulas are correct but I  messed up the () putting them into your trigger code.

you can verify the formulas with this

    select n,FLOOR((n + 4) / 5) * 5, ceil(n/5)*5 from (
    select level-1 n from dual connect by level < 103) ;


try this...


CREATE OR REPLACE TRIGGER sale_calculations
    BEFORE INSERT OR UPDATE
    ON prs
    FOR EACH ROW
BEGIN
    :new.prsvf11c :=
        (FLOOR((((:new.prsprsc - :new.prsvf1c) / :new.prsprsc * 100) + 4) / 5) * 5) || '%';
END;

or

CREATE OR REPLACE TRIGGER sale_calculations
    BEFORE INSERT OR UPDATE
    ON prs
    FOR EACH ROW
BEGIN
    :new.prsvf11c :=
        (ceil(((:new.prsprsc - :new.prsvf1c) / :new.prsprsc * 100)  / 5) * 5) || '%';
END;
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

PL/SQL can be a very powerful tool for working directly with database tables. Being able to loop will allow you to perform more complex operations, but can be a little tricky to write correctly. This article will provide examples of basic loops alon…
If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
This video shows how to copy a database user from one database to another user DBMS_METADATA.  It also shows how to copy a user's permissions and discusses password hash differences between Oracle 10g and 11g.

910 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

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now