Solved

SQL Update Query - Change date ONLY in time/date field

Posted on 2014-08-14
3
1,010 Views
Last Modified: 2014-08-14
I need to change a bunch of rows that was dated 08/30/2014 to 05/31/2014 but I don't want to change the time stamp within the value.  So if the row shows 08/30/2014 00:30:27.513...I want the row to be updated to 05/31/2014 00:30:27.513
0
Comment
Question by:Lee R Liddick Jr
3 Comments
 
LVL 65

Expert Comment

by:Jim Horn
ID: 40260792
Hmm.  Very wild guess..
UPDATE your_table
SET the_datetime = CAST('2014-05-31 ' + CAST(the_datetime as time) as datetime)
WHERE CAST(the_datetime as date) = '2014-08-30'

Open in new window

>a bunch of rows that was dated 08/30/2014 to 05/31/2014
>So if the row shows 08/30/2014
Define this a little further for us please.
0
 
LVL 47

Accepted Solution

by:
Vitor Montalvão earned 500 total points
ID: 40260798
Try this:

UPDATE TableName
SET MyDate = DATEADD(days, DATEDIFF(day,'08/30/2014','05/31/2014') , MyDate)
WHERE MyDate BETWEEN '08/30/2014' AND '08/31/2014'

Open in new window

0
 

Author Closing Comment

by:Lee R Liddick Jr
ID: 40260874
That was it...thanks!
0

Featured Post

Back Up Your Microsoft Windows Server®

Back up all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

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

PL/SQL can be a very powerful tool for working directly with database tables. Being able to loop will allow you to perform more complex operations, but can be a little tricky to write correctly. This article will provide examples of basic loops alon…
If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
Using examples as well as descriptions, and references to Books Online, show the different Recovery Models available in SQL Server and explain, as well as show how full, differential and transaction log backups are performed
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.

773 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