Solved

PL/SQL update with joining other tables

Posted on 2010-08-18
2
358 Views
Last Modified: 2013-12-19
I am trying to do a simple update statement in PL/SQL, Oracle 9i.

Table A
col1    col2     col3
1         1          Y
2         1          N
3         1          

Table B
col1    col2    col3
1         1         Y
2         1         Y
3         1         Y

All I need to do is the update Table B col3  the same as in Table A col3, if Table A col3 is null, then update as N.

I know oracle doesn't have the update from like SQL Server.  This makes it very difficult for me.  Please help.  Thanks.
0
Comment
Question by:cmleung2
2 Comments
 
LVL 58

Expert Comment

by:cyberkiwi
ID: 33470278
update
 (select b.col1, b.col2, a.col3 as col3a, b.col3 as col3b
  from tableb b left join tablea a on a.col1=b.col1 and a.col2=b.col2) t
set
 t.col3b=nvl(t.col3a, 'N')
0
 
LVL 73

Accepted Solution

by:
sdstuber earned 500 total points
ID: 33470313
update tableB b
set col3 = nvl((select col3 from tableA a where a.col1=b.col1 and a.col2=b.col2),'N')
0

Featured Post

Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

Question has a verified solution.

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

Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
For many of us, the  holiday season kindles the natural urge to give back to our friends, family members and communities. While it's easy for friends to notice the impact of such deeds, understanding the contributions of businesses and enterprises i…
This video shows syntax for various backup options while discussing how the different basic backup types work.  It explains how to take full backups, incremental level 0 backups, incremental level 1 backups in both differential and cumulative mode a…
This video explains what a user managed backup is and shows how to take one, providing a couple of simple example scripts.

920 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