Solved

How do I convert this SQL SELECT into an UPDATE

Posted on 2016-09-15
10
39 Views
Last Modified: 2016-09-15
I would like to update the Requested_Date on all the records returned by this SQL statement to 9/19/16.

SELECT        dbo.Delivery.Promised_Date
FROM            dbo.Job LEFT OUTER JOIN
                         dbo.Delivery ON dbo.Job.Job = dbo.Delivery.Job
WHERE        (dbo.Job.Status <> 'template') AND (dbo.Job.Customer_PO = '114672') AND (dbo.Delivery.Requested_Date = CONVERT(DATETIME, '2016-09-15 00:00:00', 102))

Open in new window


How would I write that considering I am doing a JOIN.

Thanks in advance for your help.
0
Comment
Question by:princeservice
  • 5
  • 5
10 Comments
 
LVL 65

Expert Comment

by:Jim Horn
ID: 41799986
Give this a whirl.  Note the use of table aliases j and d for easier readability, use of indentation, and elimination of unneeded parentheses marks
UPDATE j
SET j.Promised_Date = '20160919'
FROM dbo.Job j
   LEFT JOIN dbo.Delivery d ON j.Job = d.Job
WHERE 
   j.Status <> 'template' AND 
   j.Customer_PO = '114672' AND 
   d.Requested_Date = CONVERT(DATETIME, '2016-09-15 00:00:00', 102)

Open in new window

0
 

Author Comment

by:princeservice
ID: 41800063
I added an addition to the WHERE clause to only change one record for the test (Line 9). Requested_Date was supposed to be Promised_Date but that was my bad (Line 8). Also Promised_Date is in the Delivery table, not Job table (Line 2). So here is the adjusted code:

UPDATE j
SET d.Promised_Date = '20160919'
FROM dbo.Job j
   LEFT JOIN dbo.Delivery d ON j.Job = d.Job
WHERE 
   j.Status <> 'template' AND 
   j.Customer_PO = '114672' AND 
   d.Promised_Date = CONVERT(DATETIME, '2016-09-15 00:00:00', 102) AND
   j.Job = '105865'

Open in new window


I get the following error in SSMS:
Msg 4104, Level 16, State 1, Line 1
The multi-part identifier "d.Promised_Date" could not be bound.
0
 
LVL 65

Expert Comment

by:Jim Horn
ID: 41800069
Explain what you're trying to do with the WHERE .. d.Promised_Date line.  Is it a datetime or varchar?  Guessing you intended to have a column as the second parameter and not a hard coded date?  CONVERT in this manner converts to a varchar, so not sure why you have datetime there.  

Check out SQL Server Date Styles (formats) using CONVERT() for some help with that expression.
0
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!

 

Author Comment

by:princeservice
ID: 41800076
Promised date is a datetime type. When I go into SSMS and create a view this is the SELECT statement it creates.
0
 
LVL 65

Expert Comment

by:Jim Horn
ID: 41800081
Yeah that seems odd, as you shouldn't be formatting values to shove into a datetime column.  I'd work with that to make sure it's what you need, as it's not real clear to me what you're trying to pull off there.
0
 

Author Comment

by:princeservice
ID: 41800186
I'm confused as to why it's not real clear. I just want to mass change all the dates based on the results returned by my original query.
0
 
LVL 65

Expert Comment

by:Jim Horn
ID: 41800201
<correction>

Looking at the code block in my above comment, it appears the error was because of the SET statement with the d. table alias and not the WHERE clause.  So correcting the table alias..

UPDATE j
SET j.Promised_Date = '20160919'
FROM dbo.Job j
   LEFT JOIN dbo.Delivery d ON j.Job = d.Job
WHERE 
   j.Status <> 'template' AND 
   j.Customer_PO = '114672' AND 
   d.Promised_Date = CONVERT(DATETIME, '2016-09-15 00:00:00', 102) AND
   j.Job = '105865'

Open in new window

0
 

Author Comment

by:princeservice
ID: 41800211
Promised date is in the delivery table
0
 
LVL 65

Accepted Solution

by:
Jim Horn earned 500 total points
ID: 41800216
Okay, then switch the FROM and JOIN, and revisit the use of LEFT JOIN in the query..

UPDATE d
SET d.Promised_Date = '20160919'
FROM dbo.Delivery d 
   LEFT JOIN dbo.Job j ON j.Job = d.Job
WHERE 
   j.Status <> 'template' AND 
   j.Customer_PO = '114672' AND 
   d.Promised_Date = CONVERT(DATETIME, '2016-09-15 00:00:00', 102) AND
   j.Job = '105865'

Open in new window


You may have to make minor modifications to get this to work, as experts here cannot connect to your data source(s) and run queries, so we are limited to reading T-SQL in questions and making educated guesses.
0
 

Author Closing Comment

by:princeservice
ID: 41800246
Worked perfect. Thanks
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

     When we have to pass multiple rows of data to SQL Server, the developers either have to send one row at a time or come up with other workarounds to meet requirements like using XML to pass data, which is complex and tedious to use. There is a …
In this article I will describe the Detach & Attach method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…

828 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