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

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 55
  • Last Modified:

How do I convert this SQL SELECT into an UPDATE

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
princeservice
Asked:
princeservice
  • 5
  • 5
1 Solution
 
Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
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
 
princeserviceAuthor Commented:
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
 
Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
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
Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

 
princeserviceAuthor Commented:
Promised date is a datetime type. When I go into SSMS and create a view this is the SELECT statement it creates.
0
 
Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
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
 
princeserviceAuthor Commented:
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
 
Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
<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
 
princeserviceAuthor Commented:
Promised date is in the delivery table
0
 
Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
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
 
princeserviceAuthor Commented:
Worked perfect. Thanks
0

Featured Post

Get your Conversational Ransomware Defense e‑book

This e-book gives you an insight into the ransomware threat and reviews the fundamentals of top-notch ransomware preparedness and recovery. To help you protect yourself and your organization. The initial infection may be inevitable, so the best protection is to be fully prepared.

  • 5
  • 5
Tackle projects and never again get stuck behind a technical roadblock.
Join Now