Solved

Oracle SQL query to identify records that belong to the same primary record.

Posted on 2011-03-09
3
296 Views
Last Modified: 2012-05-11
I have a table with the following data:
ID             TYPE
0100001         A
0100001         B
0100001         C
0100002     A
0100002     C

I'm looking to number records base on their ID so I can then create one record per ID.
TYPE column shouldn't be the driving factor in numbering records but rather change in the ID number. So first step is to number the records with the same ID:
Output:
ID             TYPE    POSITION
0100001         A             1
0100001         B             2
0100001         C             3
0100002     A             1
0100002     C             2

After I have records numbered I can use the following to create one record per ID.
select id,type,position (subquery where id=id and position=2),(subquery where id=id and position=3) from my_table where position=1;

ID             TYPE    POSITION    SUBQUERY1          SUBQUERY2
0100001         A             1                   B                             C
0100002     A             1                   C
0
Comment
Question by:Aliencenet
  • 2
3 Comments
 
LVL 76

Accepted Solution

by:
slightwv (䄆 Netminder) earned 500 total points
ID: 35089620
The number is easy:
Select Id, type, position
From
(
Select id, type, row_number() (partition by id order by id,type) position
From table
)
Order by id, position
/

The pivot is the hard part.  In Oracle you need to know the number of columns.

If you can go with a CSV, it get's easier.
0
 

Author Comment

by:Aliencenet
ID: 35104921
Thanks slightwv. This helps. just missing "over" in the statement
0
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 35108862
>>just missing "over" in the statement

lol.. yes I did.

Typing all that in on a Mobile device, I'm surprised that's all I missed.

Glad to help.
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

Note: this article covers simple compression. Oracle introduced in version 11g release 2 a new feature called Advanced Compression which is not covered here. General principle of Oracle compression Oracle compression is a way of reducing the d…
Have you ever had to make fundamental changes to a table in Oracle, but haven't been able to get any downtime?  I'm talking things like: * Dropping columns * Shrinking allocated space * Removing chained blocks and restoring the PCTFREE * Re-or…
This video shows information on the Oracle Data Dictionary, starting with the Oracle documentation, explaining the different types of Data Dictionary views available by group and permissions as well as giving examples on how to retrieve data from th…
This video shows how to copy an entire tablespace from one database to another database using Transportable Tablespace functionality.

863 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

23 Experts available now in Live!

Get 1:1 Help Now