Daylight Savings
Dec 20, 2004Anyone if SQL server has any built-in mechanism for handling Daylight savings?
Mostly for figuring out time passed between two datetime values....
Thanks in advance.
Anyone if SQL server has any built-in mechanism for handling Daylight savings?
Mostly for figuring out time passed between two datetime values....
Thanks in advance.
I have the database on a GMT server and a logdate that is in GMT too. How do I convert this into CST (GMT -6) , during daylight savings (GMT-5) when passing it back to the webpage.
I can use DATEADD(hh,-6,LogDate) but how do I know if the daylight savings period has started to do DATEADD(hh,-5,LogDate). I also want to solve this at the database level without altering the front-end.
Thanks.
With the change in daylight savings time this year I was wondering if any patches needed to be applied to sql server. We are running sql server 2000.
Thanks.
Joe
I have jobs scheduled on SQL Server 2005 and SQL Server 2008.
It's my understanding that if there are jobs scheduled to run between 2:00 - 3:00 AM this Sunday when Daylight Savings time moves the time from 2:00 AM to 3:00 AM, these jobs will run at 3:00 AM along with any scheduled jobs to run at 3:00 AM.
Is this correct?
This must've been convered before, but I can seem to find a solution to it. Daylight Savings Time is about to end in my area, at which time the clocks will go backwards from 1:59am to 1:00am.
I have scheduled jobs that run every minute, and I'm expecting that when the clock rolls back, they will stop running for the gained hour until the clock catches back up.
So, I need an automated way to correct this.
I was looking at the msdb..sysjobschedules table, at the next_run_time column. But it doesn't make much sense. That value will periodically update, but it is always a good bit behind the next run time reported in EM. And manually updating it seems to have no effect.
Is there a way to get a job to run or to recalculate the next run time via tsql script?
I apologize ahead of time if this has been covered. I tried searching but found only the OS specific response to my question (http://www.microsoft.com/windows/timezone/dst2007.mspx).
With the coming changes to DST in 2007, is there -- or is there even a need to -- patch either SQL Server 2005 or 2000 to account for those changes?
I was wondering if there is a simple patch for 2000 server. It seems that the only fix is to edit the registry and to use the time zone editor app. If there is a simple patch like there is for the 2003 servers i would appreciate it if anyone can show me where. I have about 80+ servers with 2000!!!
Much appreciated!
Hi all.
After DST change (US/Canada), when I run any of my reports, I get this error:
"An internal error occurred on the report server. See the error log for more
details. (rsInternalError) Get Online Help
Specified argument was out of the range of valid values. Parameter name:
date "
Does anyone have or heard of a solution?
Thank you!
I wanted to know how we can handle Time Zones and Daylight Savings Time in SQL Server 2000 as well as 2005.
Any pointers would be helpful.
Pranav
We have scheduled jobs, which run every 2 minutes. If the job runs at 1:59am, the next run time is set to 2:01 am. If at 2:00am, the clock is rolled back to 1:00, my scheduled run time is still 2:01am. In this situalion, my 2 minute job will not run until 1 hour and 1 minute later, at 2:01am.
Any suggestions for reseting the next run times on the jobs to the next interval after the clock roles back to 1:00am.
-Matt
Hi,
How to prepare SQL Server 2005 and SQL Server 2000 for changes to daylight saving time in 2007?
I thought I would post this just in case you are not aware of the change of the Daylight Saving Time start and end dates in 2007. This is really an OS problem, not a SQL Server problem, but it could have a big impact on your applicaitons if you are not prepared. The first change is less that 2 months away, so it's not a bad time to give it some thought.
Here are some articles about preparing systems for the 2007 daylight savings time changes that you might find of interest.
Preparing for daylight saving time changes in 2007:
“Starting in the spring of 2007, daylight saving time (DST) start and end dates for the United States will transition to comply with the Energy Policy Act of 2005. DST dates in the United States will start three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November).
Microsoft will be producing an update for Microsoft products affected by the new United States daylight saving time transition dates. These updates will be released through a combination of channels including Microsoft Customer Support Services (CSS), hotfixes incorporated in Knowledge Base articles, Windows Update, Microsoft Update, Windows Server Update Services (WSUS), and the Microsoft Download Center.�
http://www.microsoft.com/windows/timezone/dst2007.mspx
How to configure daylight saving time for the United States in 2007:
http://support.microsoft.com/?kbid=914387
Daylight Saving Time in Canada:
The article in the link below indicates that all Canadian provinces except for Nunavut have decided to follow the US daylight savings changes in 2007. The article contains links to news articles with official announcements of the changes.
http://en.wikipedia.org/wiki/Time_in_Canada
CODO ERGO SUM
Hi,
I have this simple SQL query which SELECTs the fields according to the criteria in WHERE clause. SELECT callingPartyNumber, originalCalledPartyNumber, finalCalledPartyNumber,
dateadd(ss, (dateTimeConnect + (60 * 60 * -5))+3600 , '01-01-1970 00:00:00') AS dateTimeConnect,
dateadd(ss, (dateTimeDisconnect + (60 * 60 * -5))+3600, '01-01-1970 00:00:00') AS dateTimeDisconnect,
CONVERT(char(8), DATEADD(second, duration, '0:00:00'), 108) AS duration
FROM Calls
WHERE
(callingPartyNumber = ISNULL(@callingPartyNumber, callingPartyNumber)) AND
(originalCalledPartyNumber = ISNULL(@originalCalledPartyNumber, originalCalledPartyNumber)) AND
(finalCalledPartyNumber = ISNULL(@finalCalledPartyNumber, finalCalledPartyNumber)) AND
(duration >= @theDuration) AND
((datetimeConnect - 14400) >= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeConnect)), datetimeConnect)) AND
((dateTimeDisconnect - 14400) <= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeDisconnect)), dateTimeDisconnect))
If you notice, in the SELECT, I add 3600 (1 hour) to adjust the time according to the current DayLight saving setting. Similarly, while comparing in WHERE clause, I subtract 14400 seconds (4 hours) to adjust the comparison according to EST (-5 GMT, but doing -4 GMT since daylight saving) and daylight saving.
Also, dateTimeConnect and dataTimeDisconnect fields save time in UTC seconds.
Now this application may be used by clients in different timezones. The application may be hosted on their server which would mean a different time zone. What would be the best way to make this time zone and daylight adjustment more dynamic instead of hardcoding the values.
Last weekend many of our severs had a failed job "collection_set_3_upload". The error that occured is: "Violation of PRIMARY KEY constraint 'PK_ active_ sessions_ and_requests'. Cannot insert duplicate key in object 'snapshots.active_sessions_and_requests'. The duplicate key value is (2824333, 2015-10-25 02:54:49.7630000 +02:00, 1)."Last weekend we happened to go from summer time to winter time. i.e. the clock passed 02:00 - 3:00 two times during this night.
I.e. there is a bug in the Data Collector component that collects data for the Management Data Warehouse: it uses local time instead of UTC. I've created a Connect item to report it to Microsoft.URL...how do you get your process running again? the job will no longer run because it will every 5 minutes keep on trying to upload the conflicting data for the 2nd 2:00 - 3:00 period. I've only found one solution: get rid of all data collected but not yet uploaded.
You do this by stopping the Collection set (in SSMS go to Object Explorer -> <the server you want to fix> -> Management -> Data Collection -> System Data Collection Sets. Right click "Query Statistics" and select "Stop Data Collection Set").Then you delete the cached results from the sql server machine's harddisk. These cached results are in files located in a Temp folder on the sql machine itself, inside the AppData folder for the service account SQL Server Agent is running under. Usually it will be something like: c:Users<sql agent service account>AppDataLocalTemp.
Inside this folder delete all files that have 'QueryActivity' in their name. You'll loose all data collected since the start of wintertime, but at least your data collection process will work again.After this you can start the Collection set again by right clicking it and select "Start Data Collection Set". Every 5 minutes the data will be summarised and uploaded into your management data warehouse.
Posting Data Etiquette - Jeff Moden
Posting Performance Based Questions - Gail Shaw
Hidden RBAR - Jeff Moden
Cross Tabs and Pivots - Jeff Moden
Catch-all queries - Gail Shaw