Solved

query

Posted on 2014-03-04
4
196 Views
Last Modified: 2014-05-28
I have a data something like below:

mycol
---------
xyzmap
xyzjob1
xyztab2
xyztime
abcledger
abclicense
abctime
abcmap
pqrmap
pqrlinked
pqrtime

i want to derive a column where the value %map repeats for each group(abc, xyz,pqr)

mycol             mydercol
---------           -------------
xyzmap          xyzmap
xyzjob1          xyzmap
xyztab2          xyzmap
xyztime         xyzmap
abcledger      abcmap
abclicense    abcmap
abctime        abcmap
abcmap        abcmap
pqrmap        pqrmap
pqrlinked     pqrmap
pqrtime        pqrmap

is there a way to do this..

thanks
0
Comment
Question by:gs79
4 Comments
 
LVL 22

Assisted Solution

by:Ivo Stoykov
Ivo Stoykov earned 125 total points
ID: 39905648
it is not clear what do you mean by 'each group' but you could try this
SELECT substr(mycol, 1, 3) || 'map' mydercol FROM mytable

Open in new window

HTH
Ivo Stoykov
0
 
LVL 40

Assisted Solution

by:Sharath
Sharath earned 125 total points
ID: 39905656
try like this.
select t1.MyCol,t2.mydercol
  from test t1,
(select MyCol as mydercol,replace(MyCol,'map','') as MyCol1
  from test
 where MyCol like '%map') t2 where t1.MyCol like t2.MyCol1||'%'

Open in new window

http://sqlfiddle.com/#!4/408e1/9
0
 
LVL 35

Accepted Solution

by:
Mark Geerlings earned 125 total points
ID: 39908337
Is it always the first three characters that determines your "%map"?  If yes, then a simple query like this can do that for you: substr(mycol,1,3)||'map'.

You could create a view like this:
create or replace view map_view
(mycol, mydircol)
as select mycol, substr(mycol,1,3)||'map'
from your_table;
0
 
LVL 32

Assisted Solution

by:awking00
awking00 earned 125 total points
ID: 39920925
gs79,
You need to confirm or refute that the "group" is always the first three characters. If so, the concatenation already shown should work. If not, the task becomes a little more complex and will require further criteria for determining the "group".
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Article by: Swadhin
From the Oracle SQL Reference (http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/queries006.htm) we are told that a join is a query that combines rows from two or more tables, views, or materialized views. This article provides a glimps…
Introduction A previously published article on Experts Exchange ("Joins in Oracle", http://www.experts-exchange.com/Database/Oracle/A_8249-Joins-in-Oracle.html) makes a statement about "Oracle proprietary" joins and mixes the join syntax with gen…
Via a live example, show how to take different types of Oracle backups using RMAN.
This video shows how to Export data from an Oracle database using the Original Export Utility.  The corresponding Import utility, which works the same way is referenced, but not demonstrated.

911 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

22 Experts available now in Live!

Get 1:1 Help Now