Solved

FORALL in Oracle

Posted on 2011-09-27
3
337 Views
Last Modified: 2012-05-12


I have the following sample data and I just want to swap only the membereligids for the same fname,lname and dob
keeping the rest of the data as it is. The issue is there is unique constraint on the column Membereligids.

Please see the attached sample data

I am not sure how I can develop logic using CURSORS/FORALL. Can someone guide me ?

Eg: Fname - Amit
 Lname - Kumar
  has two records with the same DOB but with different membereligids. I want to swap only 40681910,40813962

Sample-data.xls
0
Comment
Question by:d27m11y
3 Comments
 
LVL 32

Expert Comment

by:awking00
ID: 36711091
Are they always just duplicates or can there also be triplicates, for example?
0
 
LVL 16

Accepted Solution

by:
Swadhin Ray earned 500 total points
ID: 37181802
Assuming there will be always duplicity based on your sample data provided.

Check the code as below:

 
--Sample table 
create table swap 
(
id number,
name varchar2(40),
dob date,
gid number
);

-- insert query 
insert into swap values(1,'NAME1','19-NOV-1959',101);
insert into swap values(2,'NAME1','19-NOV-1959',102);
insert into swap values(3,'NAME2','19-OCT-1959',103);
insert into swap values(4,'NAME2','19-OCT-1959',104);
COMMIT;


--update query
UPDATE swap a
   SET gid = (SELECT gid
                FROM swap b
               WHERE b.NAME = a.NAME AND a.ROWID <> b.ROWID);

Open in new window

0
 

Author Closing Comment

by:d27m11y
ID: 37200670
helpful!
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
Difference in number of minutes between 2 timestamps 16 39
case statement in where clause 5 42
Fastest way to replace data in Oracle 5 51
MULTIPLE DATE QUERY 15 52
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…
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…
This video explains at a high level about the four available data types in Oracle and how dates can be manipulated by the user to get data into and out of the database.
This video explains what a user managed backup is and shows how to take one, providing a couple of simple example scripts.

896 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

12 Experts available now in Live!

Get 1:1 Help Now