Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

one to many update help needed

Posted on 2010-09-21
5
Medium Priority
?
273 Views
Last Modified: 2012-05-10
Hello, I'm attempting to use the following to update a table from another table. This is a one to many update.

When I run this only one row is updated which is not correct.

update a
set a.custnmbr = b.custnmbr
From BB_TNCommFac3_LocationsBScott a, cc_scott b
where ltrim(rtrim(b.oldid)) = ltrim(rtrim(a.oldid))

this brings 1149 rows
select * from cc_scott where ltrim(rtrim(oldid)) in (select ltrim(rtrim(oldid)) from BB_TNCommFac3_LocationsBScott)




0
Comment
Question by:gogetsome
5 Comments
 
LVL 2

Accepted Solution

by:
mgrabarz earned 2000 total points
ID: 33726083
select * from cc_scott where ltrim(rtrim(oldid)) in (select ltrim(rtrim(oldid)) from BB_TNCommFac3_LocationsBScott)
This query returns rows from cc_scott  table that have the value of oldid existing in BB_TNCommFac3_LocationsBScott. Maybe there are 1149 rows with the same oldid value?

In update process you will update the same BB_TNCommFac3_LocationsBScott row for 1149 times...
0
 
LVL 2

Expert Comment

by:Ahrensy
ID: 33726093
I would do something like:
update table 1 set table1.field = (select table2.field from table2 where table1.id = table2.id)

Open in new window

0
 

Author Comment

by:gogetsome
ID: 33726141
Yes, I need to update the custnmbr on  BB_TNCommFac3_LocationsBScott with the custnmbr on cc_scott based on the oldid that resides in both tables.

cc_scott is the billing table and  BB_TNCommFac3_LocationsBScott is the shipping table. There are more shipping address then billing addresses. All shipping addresses need the same custnmbr as their corresponding billing custnmbr.

The cc_scott table has 1149 rows and the  BB_TNCommFac3_LocationsBScott table has 1909 rows.
0
 
LVL 1

Expert Comment

by:Dmapros
ID: 33726395
I typically use this format when updating items based on data from another table:

UPDATE <tblname>
SET <colname> =
SELECT <colname with data for update>
0
 
LVL 1

Expert Comment

by:Dmapros
ID: 33726417
Sorry last post was not complete when it uploaded.

 typically use this format when updating items based on data from another table:

UPDATE <tblname>
SET <colname> =
SELECT <colname with data for update>
FROM <tablename>
WHERE <conditions>

0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

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

Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
What if you have to shut down the entire Citrix infrastructure for hardware maintenance, software upgrades or "the unknown"? I developed this plan for "the unknown" and hope that it helps you as well. This article explains how to properly shut down …
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.

916 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