Handle Time Zones And Daylight Savings Time In SQL Server

Dec 19, 2006

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

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Daylight Savings Time Error SQL SERVER 2000

Mar 20, 2007

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!

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GMT Time To CST With Daylight Savings

Feb 22, 2006

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.

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Daylight Savings Time

Dec 27, 2006

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

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Scheduled Jobs And Daylight Savings Time

Oct 26, 2006

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?

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Daylight Savings Time Changes Coming In 2007

Nov 9, 2006

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?

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Daylight Savings Patch For 2000 Server

Feb 13, 2007

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!

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Daylight Savings

Dec 20, 2004

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.

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Replicating Across Time Zones

May 10, 1999

We're considering one database in the far east, using merge replication with a database in London.

There's a time difference of maybe 7 hours between the two sites - has anyone ideas on conflict resolution (thinking about the Far East updating a record at 16:00 their time, London updates the same record at 15:30 GMT - how does SQL Server know that London's time is the correct record to use?).

Any info gratefully accepted.

Thanks
Dan

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Scheduled Jobs - Daylight Savings

Mar 2, 2015

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?

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SQL Date Problem With Time Zones

Nov 5, 2007

 I just started having this problem since the change of clocks for end of DST. I am running a client application that updates data in a SQL server via a web service.The Client app is located in the Easter Time Zone (EST)The Server is located in the Central Time Zone (CST)I have a database in which a date/time value is entered.  The Data Type for this field on the sql server is DateTimeHow i have it working is, I send the Table, Fields and Values from the client app to the web service.  The web service constructs the sql statement and executes it.  Similarly, when I want to get data, i send the webservice the Table and Filter, and the webservice returns a DataSet.The problem I am having, is when I send (Insert or update) a date to the WebService to update the SQL Database, it inserts/updates with the date I send.  However, when I request that data, it then adjusts for the time zone difference.Example:Lets say it is November 11, 2007 at 12:35:10.000, (EST)First, from the client, I insert a record with the date field as Now().  When I look in the SQL Database, I see the value is 2007-11-5 12:35:10.000  - Which is correct.However, when I do query on that record, it returns the value of 2007-11-5 13:35:10.000 - adjusted One Hour for the time zone difference, even though if i look back at the SQL Server, it still has the original 12:35 value Why is it adjusting for Time Zone difference only when I reqest data?  How can I stop this?  Or, How can I have it adjust on Insert/Update as well (I don't care if it adjust - i just need it to be the same/consistent on both ends)Thanks 

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Transact SQL :: Get List Of All Time Zones / Offsets And DST Changes

Aug 28, 2015

I need to build a reference table that will contain the time zone, offset value and DST changes for all time zones.  Is there a way I can pull this from the windows server hosting sql server?

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Converting UTC Datetime Values To Local Time Zones

May 20, 2008



I would like to convert a UTC datetime value to any Local Time Zone. Below is some code I'm trying to ensure works correctly. Anyone care to comment?

I have used the following lines before the function to obtain the 2nd parameter:


SELECT GETUTCDATE()

SELECT GETDATE()

SELECT DATEDIFF(hh,'2008-05-20 20:08:01.020', '2008-05-20 16:08:01.020')

DECLARE @UTC DATETIME

EXECUTE @UTC = UTCtoLocalDate '2008-05-20 20:08:01.020', -4


-- =============================================

-- Description: <Converts local datetime values to UTC datetime values, using the built-in GETUTCDATE() function.

-- <Parameter two (@TZ) represents the time zone difference from UTC/GMT. To obtain this value

-- <run GETUTCDATE() and GETDATE(), then determine the timezone from the difference between the two.>

-- =============================================

CREATE FUNCTION [dbo].[UTCtoLocalDate] (@UTCDate DATETIME, @TZ INT)

RETURNS DATETIME AS

BEGIN

IF ( DATEPART(hh, @UTCDate) <> 0 )

BEGIN

DECLARE @LocalDate DATETIME

DECLARE @UTCDelta INT

DECLARE @thisYear INT

DECLARE @DSTDay INT

DECLARE @NormalDay INT

DECLARE @DSTDate DATETIME

DECLARE @NormalDate DATETIME

SET @thisYear = YEAR(@UTCDate)

IF (@thisYear < 2007 )

BEGIN

SET @DSTDay = ( 2 + 6 * @thisYear - FLOOR(@thisYear / 4) ) % 7 + 1

SET @NormalDay = ( 31 - ( FLOOR( @thisYear * 5 / 4) + 1) % 7)

SET @DSTDate = '4/' + CAST(@DSTDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'

SET @NormalDate = '10/' + CAST(@NormalDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'

END

ELSE

BEGIN

SET @DSTDay = ( 14 - ( FLOOR( 1 + @thisYear * 5 / 4 ) ) % 7 )

SET @NormalDay = ( 7 - ( FLOOR ( 1 + @thisYear * 5 / 4) ) % 7 )

SET @DSTDate = '3/' + CAST(@DSTDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'

SET @NormalDate = '11/' + CAST(@NormalDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'

END

IF ((@UTCDate > @DSTDate) AND (@UTCDate < @NormalDate))

BEGIN

SET @UTCDelta = @TZ + 1

END

ELSE

BEGIN

SET @UTCDelta = @TZ

END

-- now convert utc date to local date

SET @LocalDate = DATEADD(Hour, @UTCDelta, @UTCDate)

END

ELSE

BEGIN

SET @LocalDate = @UTCDate

END

RETURN(@LocalDate)

END

GO

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Daylight Saving Time (DST)

Mar 5, 2007

Hi,
How to prepare SQL Server 2005 and SQL Server 2000 for changes to daylight saving time in 2007?

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Daylight Saving Time Changes For US And Canada

Jan 12, 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

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Adjusting Time Zone And Daylight Saving In SQL

Aug 6, 2007

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.
 

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SQL 2012 :: Data Collection And Daylight Saving Time

Oct 26, 2015

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

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How To Convert UTC Time (retrieved From SQL) To Local Time In Reporting Services Based On Time Zone

Aug 7, 2007



Hi all,

I have created a report in SSRS 2005 which is being viewed by users from different Time Zones.

I have a dataset which has a field of type datetime (UTC). Now I would like to display this Date according to the User Time Zone.

For example if the date is August 07, 2007 10:00 AM UTC,

then I would like to display it as August 07, 2007 03:30 PM IST if the user Time Zone is IST.


Similarly for other Time Zones it should display the time accordingly.

Is this possible in SSRS 2005?

Any pointers will be usefull...

Thanks in advance
sudheer racha.

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Jun 11, 2015

Is there a way to keep track in real time on how long a stored procedure is running for? So what I want to do is fire off a trace in a stored procedure if that stored procedure is running for over like 5 minutes.

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SQL Server 2008 :: Displaying Transaction Time Punch Data In A Time Card Form?

Oct 7, 2015

I have a table called employee_punch_record that we use to store employee time clock punches.

The columns are:

employeeid,
punch_timestamp,
punch_type (In / Out),
closed (bit used as status for open or closed pay periods),
ident

Here are some examples of a record:

bkingery62015-10-06 16:59:04.000In0
bkingery72015-10-06 16:59:09.000Out0
bkingery82015-10-06 16:59:13.000In0
bkingery92015-10-06 18:22:44.000Out0
bkingery102015-10-06 18:22:46.000In0
bkingery112015-10-06 18:22:48.000Out0
bkingery122015-10-06 18:22:51.000In0
tfeller52015-10-05 17:00:05.000In0

We are using SQL Server 2008 as our database and use Access as a GUI. I am looking to create a form in Access where employees can access their time card and request changes from management. I want to use the format from the attached screen shot for the form. I pretty much know how to do it all, the only point of complication is trying to figure out the easiest way to get the transaction punch record data on employee_punch_record into a format where I can easily populate the form in the horizontal format you see in the screen shot.

I am not super strong in SQL, but figure I can do it using a formatting table of some sort. quick and easy way to move transaction records into a more horizontally oriented record?

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Time In Sql Server Is Not The Real Time

Apr 18, 2007

Hi,when i create a new user in a .MDF file, the hour of creation in the field "createdate" of table "membership" is exactly 2 hours less than the time of my computer. Probably something to do with different hours between Europe and UK or ...How can i set the creation hour to exact the same hour of my computer?ThanksTartuffe

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Conversion Of Oracle Date Time To Sql Server Date Time In SSIS

Jun 30, 2007

This is driving me nuts..



I'm trying to extract some data from a table in oracle. The oracle table stores date and time seperately in 2 different columns. I need to merge these two columns and import to sql server database.



I'm struggling with this for a quite a while and I'm not able to get it working.



I tried the oracle query something like this,

SELECT
(TO_CHAR(ASOFDATE,'YYYYMMDD')||' '||TO_CHAR(ASOFTIME,'HH24:MM : SS')||':000') AS ASOFDATE

FROM TBLA

this gives me an output of 20070511 23:06:30:000



the space in MM : SS is intentional here, since without that space it appread as smiley



I'm trying to map this to datetime field in sql server 2005. It keeps failing with this error

The value could not be converted because of a potential loss of data



I'm struck with error for hours now. Any pointers would be helpful.



Thanks

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SQL 2012 :: Accurate Sorting Data Each Time With Millions Of Records Without Time Field?

Apr 25, 2014

Sample Table

USE [Testing]
GO
/****** Object: Table [dbo].[Testing] Script Date: 4/25/2014 11:08:18 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON

[Code] ....

It seems to work fine with one million records.

Each primary key is unique, but the begindate is non-unique, and i guess even if i use datetime2 and add nanoseconds, from what i have read, there is a chance that i could have a duplicate datetime since the date is imported via XML from multiple sources.

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Oct 22, 2015

I am trying to load previous days data at 3 am via a SSIS job.

The Date variable is initiated as DATEADD("dd",-1, GETDATE()) in the for loop.

Now, as this job runs at 3 am, and I set the variable as GETDATE() - 1, it excluded the data from 12 am to 3 am in the resultset as Date is set as YYYY-MM-DD 03:00:00:000 I need this to be set as YYYY-MM-DD 00:00:00:000

How can i do this? 

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Transact SQL :: Update Time Portion Of DateTime Field With Time Parameter

Oct 3, 2015

I hope to update a DateTime column value with a Time input parameter.  Poor attempt below but it looks like the @ApptTime param is coming in as 10:45:00.0000000 and I might have an existing @SendOnDate as: 2015-10-05 07:00:00.000...I hope to end up with 2015-10-05 10:45:00.000

ALTER PROCEDURE [dbo].[SendEditUPDATE]
@QuePoolID int=null
,@ApptTime time(7)
,@SendOnDate datetime

[code]...

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It Takes A Long Time To Insert The First Record Each Time When The Program Start

Dec 15, 2006

I am using VS2005 (VB) to develop a PPC WM5.0 Program. And I am using SQLCE 3.0. My PPC Hardware is in 400MHz.

The question is when the program try to insert the first record into sdf database after each time the program started. It takes a long time. Does anyone know why and how can I fix it?

I will load the whole database into a dataset when the program start and do all the "Insert", "Update", "Delete" in this dataset and fill it into database after each action.

        cn.Open()
        sda = New SqlCeDataAdapter(SQL, cn) 'SQL = Select * From Table
        scb = New SqlCeCommandBuilder(sda) 
        sda.Update(dataset)
        cn.Close()

I check the sda.update(), it takes about 0.08s for filling one record into database normally. But:

1. Start the PPC Program

2. Load DB into dataset

3. Create a ONE new record in dataset

4. Fill back to DB

When I take this four steps everytime, the filling time is almost 1s or even more!

Actually, 0.08s is just a normal case. Sometimes, it still takes over 1s to filling back a dataset which only inserted one record when the program is running. (Even all inserted records are exactly the same in data jsut different in the integer key)

 However, when I give up the dataset and using the following code:

            cn.Open()
            Dim cmd As New SqlCeCommand(SQL, cn) ' I have build the insert SQL before (Insert Into Table values(XXXXXXXXXXXXXXX All field)

           cmd.CommandType = CommandType.Text
            cmd.ExecuteNonQuery()
            cn.Close()
            StartTime = Environment.TickCount

 I found that it is still the same that the first inserted record takes more time, but just about 0.2s. And the normal insert time is around 0.02s. It is 4 times faster!!!

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Apr 21, 2015

SELECT 
    CONVERT(VARCHAR(10),attnc_chkin_dt,101) as INDATE,
    CONVERT(VARCHAR(10),attnc_chkin_dt,108) as TimePart
FROM pmt_attendance

o/p
indate   04/18/2015
time part :17:45:00

I need to convert this 17:45:00 to 12 hours date format...

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Problem With Getdate() In Transaction Takes The Insert Time Instead Of The Commit Time

Nov 12, 2007

Hi,

We need to select rows from the database that have been recently inserted/updated. We have a main primary table (COMMIT_TEST) and a second update table (COMMIT_TEST_UPDATE). The update table contains the primary key and a LAST_UPDATE field which is a datetime (to tell us when an update occurred). Triggers on the primary table are used to populate the update table.

If we insert or update the primary table in a transaction, we would expect that the datetime of the insert/update would be at the commit, however it seems that the insert/update statement is cached and getdate() is executed at the time of the cache instead of the commit. This causes problems as we select rows based on LAST_UPDATE and a commit may occur later but the earlier insert timestamp is saved to the database and we miss that update.

We would like to know if there is anyway to tell the SQL Server to not execute the function getdate() until the commit, or any other way to get the commit to create the correct timestamp.

We are using default isolation level. We have tried using getdate(), current_timestamp and even {fn Now()} with the same results. SQL Queries that reproduce the problem are provided below:


/* Different functions to get current timestamp €“ all have been tested to produce the same results */
/*
SELECT GETDATE()
GO
SELECT CURRENT_TIMESTAMP
GO
SELECT {fn Now()}
GO
*/
/* Use these statements to delete the tables to allow recreate of the tables */
/*
DROP TABLE COMMIT_TEST
DROP TABLE COMMIT_TEST_UPDATE
*/
/* Create a primary table and an UPDATE table to store the date/time when the primary table is modified */
CREATE TABLE dbo.COMMIT_TEST (PKEY int PRIMARY KEY, timestamp) /* ROW_VERSION rowversion */
GO
CREATE TABLE dbo.COMMIT_TEST_UPDATE (PKEY int PRIMARY KEY, LAST_UPDATE datetime, timestamp ) /* ROW_VERSION rowversion */
GO
/* Use these statements to delete the triggers to allow reinsert */
/*
drop trigger LOG_COMMIT_TEST_INSERT
drop trigger LOG_COMMIT_TEST_UPDATE
drop trigger LOG_COMMIT_TEST_DELETE
*/
/* Create insert, update and delete triggers */
create trigger LOG_COMMIT_TEST_INSERT on COMMIT_TEST for INSERT as
begin
declare @time datetime
select @time = getdate()

insert into COMMIT_TEST_UPDATE (PKEY,LAST_UPDATE)
select PKEY, getdate()
from inserted
end
GO
create trigger LOG_COMMIT_TEST_UPDATE on COMMIT_TEST for UPDATE as
begin
declare @time datetime
select @time = getdate()

update COMMIT_TEST_UPDATE
set LAST_UPDATE = getdate()
from COMMIT_TEST_UPDATE, deleted, inserted
where COMMIT_TEST_UPDATE.PKEY = deleted.PKEY
end
GO
/* In our application deletes should never occur so we don€™t log when they get modified we just delete them from the UPDATE table */
create trigger LOG_COMMIT_TEST_DELETE on COMMIT_TEST for DELETE as
begin
if ( select count(*) from deleted ) > 0
begin
delete COMMIT_TEST_UPDATE
from COMMIT_TEST_UPDATE, deleted
where COMMIT_TEST_UPDATE.PKEY = deleted.PKEY
end
end
GO
/* Delete any previous inserted record to avoid errors when inserting */
DELETE COMMIT_TEST WHERE PKEY = 1
GO
/* What is the current date/time */
SELECT GETDATE()
GO
BEGIN TRANSACTION
GO
/* Insert a record into the primary table */
INSERT COMMIT_TEST (PKEY) VALUES (1)
GO
/* Simulate additional processing within this transaction */
WAITFOR DELAY '00:00:10'
GO
/* We expect at this point that the date is written to the database (or at least we need some way for this to happen) */
COMMIT TRANSACTION
GO
/* get the current date to show us what date/time should have been committed to the database */
SELECT GETDATE()
GO
/* Select results from the table €“ we see that the timestamp is 10 seconds older than the commit, in other words it was evaluated at */
/* the insert statement, even though the row could not be read with a SELECT as it was uncommitted */
SELECT * FROM COMMIT_TEST
GO
SELECT * FROM COMMIT_TEST_UPDATE


Any help would be appreciated, we understand we could make changes to the application/database to approximate what we need, but all the solutions have identified suffer from possible performance issues, or could still lead to missing deals (assuming the commit time is larger than some artifical time window).

Regards,

Mark

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how this can be done while my temp table is in session?

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A Time Series Prediction Was Requested With A Start Time Further In The Past Than The Internal Models Of The Mining Model

Feb 19, 2008

Hi all,

I have a very simple time series model which processing works fine without any problem. However when I run the following query

SELECT

[TimeSeries].[PriceChange],

[TimeSeries].[Symbol],

PredictTimeSeries(PriceChange, -3, 2)

From

[TimeSeries]

WHERE

[TimeSeries].[Symbol] = 'x'


I get the following error:

TITLE: Microsoft SQL Server 2005 Analysis Services
------------------------------
Error (Data mining): A time series prediction was requested with a start time further in the past than the internal models of the mining model, TimeSeries, specified in the HISTORIC_MODEL_GAP and HISTORIC_MODEL_COUNT parameters can process.

The following is the excerpt of the minding model script related to the two parameters:


<AlgorithmParameters>

<AlgorithmParameter>

<Name>MISSING_VALUE_SUBSTITUTION</Name>

<Value xsi:type="xsdtring">Previous</Value>

</AlgorithmParameter>

<AlgorithmParameter>

<Name>HISTORIC_MODEL_GAP</Name>

<Value xsi:type="xsd:int">1</Value>

</AlgorithmParameter>

<AlgorithmParameter>

<Name>HISTORIC_MODEL_COUNT</Name>

<Value xsi:type="xsd:int">10</Value>

</AlgorithmParameter>

</AlgorithmParameters>


These HISTORIC_MODEL_GAP (1) and HISTORIC_MODEL_COUNT (10) should accommodate PredictTimeSeries(PriceChange, -3, 2). Could anyone shed some light on this?



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Reporting Services :: SSRS Loses Ability To Delegate User Credentials To Database Time To Time?

Apr 30, 2015

we have problems with our SQL Reporting Service 2012 (SSRS) server . We have setup Kerberos delegation between SSRS and the database server (SQL Server Always-on cluster) so users are authenticated down to the database. The issue occurs from time to time that SSRS loses the ability to delegate the user credentials to the database. At this point in time the Report Server logs contain rejected database connections because of ANONYMOUS logon. After restarting SSRS the problem is gone.

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