Solved

SQL sp help.

Posted on 2007-04-06
6
886 Views
Last Modified: 2012-06-21
I have a db with 2 tables.  they are related by a specific column.
They each have an id row that corresponds to each other.  The one table holds the company info and then the other table holds pricing info.  I need to run through all the rows in the pricing table for a specifc date or date range.  And then for the max date for the specific id then I have to update that date in the company table in a last date column that is also assoc with that id.  Any ideas on a sp to do this?
0
Comment
Question by:casit
  • 4
  • 2
6 Comments
 
LVL 10

Expert Comment

by:ksaul
ID: 18868026
Can you post the schema and some sample data from the two tables?  A possible solution is a join to a subquery that gets the max date.  Something like:

UPDATE company
SET company.LastDate = MaxDates.MaxDate
FROM company
INNER JOIN
  (SELECT ID, MAX(date) MaxDate
  FROM pricing
  WHERE date  = <specific date>
  --WHERE date BETWEEN <date1> AND <date2>
  GROUP BY ID) AS MaxDates ON MaxDates.ID = company.ID
0
 
LVL 10

Expert Comment

by:ksaul
ID: 18882375
Was this any help?  If you give me the schema I can give you a more specific answer.  On 2005 you can also use a CTE (Common table expression) to make the query more readible.  I can give an example of that as well if you would like.
0
 

Author Comment

by:casit
ID: 18885877
Yeah that would be good.  Sry for not getting back to you just other things took a higher priority.
0
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.

 
LVL 10

Accepted Solution

by:
ksaul earned 500 total points
ID: 18891882
Here is the CTE example:

WITH MaxDates (ID, MaxDate) AS
 (SELECT ID, MAX(date) MaxDate
  FROM pricing
  WHERE date  = <specific date>
  --WHERE date BETWEEN <date1> AND <date2>
  GROUP BY ID )

UPDATE Company
SET Company.LastDate = MaxDates.MaxDate
FROM Company
INNER JOIN MaxDates on Company.ID = MaxDates.ID
0
 
LVL 10

Expert Comment

by:ksaul
ID: 18952233
Did that work for you?
0
 

Author Comment

by:casit
ID: 18986266
I actually figured this out by using a function in my view to return the latest date.  That way I don't have to change any actual data.
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

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

Suggested Solutions

Introduction This article will provide a solution for an error that might occur installing a new SQL 2005 64-bit cluster. This article will assume that you are fully prepared to complete the installation and describes the error as it occurred durin…
INTRODUCTION: While tying your database objects into builds and your enterprise source control system takes a third-party product (like Visual Studio Database Edition or Red-Gate's SQL Source Control), you can achieve some protection using a sing…
A short film showing how OnPage and Connectwise integration works.
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

914 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

20 Experts available now in Live!

Get 1:1 Help Now