I have a funny situation.
Within: MSSQL 2000 SP3, everything below described is running on same
PC.
there is a program running, which sends information to two other
programs.
This information is a timestamp of the program in datetime format,
which has it's own clock.
The clock is incremented each 5 seconds of the program, which
corespondes to aprox. one second of the real time.
It means, each on second of real time, the computer time is updated +5
seconds.
Now, two other applications, are getting this information at the same
moment.
FIRST of this applications, updates local time of the computer with
the time recieved.
SECOND application, writes a protocol to file, with timestamp read at
moment of writing from operating system.
Until now, all times are equal (the differences are not biger that
ms).
Now, the SECOND application, after writing a log into file (with
proper timestamp), calls SP in database.
It passes as input prm. the time recieved from very first program,
which is the same time as the current system time, which is the same
time the SECOND application writes to the log file.
This SP (besides other things) at the very beginning writes a log into
table, where two times are logged:
- getdate() to first column,
- timestamp recieved as input parameter.
Now the funny thing.
I would expect, the times are equal.
getdate() = '2007.04.25 10:00:00.000'
prm_recieved = '2007.04.25 10:00:00.000'
I would expect, that the time from getdate() will be shifted with
miliseconds (because of call etc).
getdate() = '2007.04.25 10:00:00.123'
prm_recieved = '2007.04.25 10:00:00.000'
I would even expect, that the time is shifted 5 seconds ahead:
getdate() = '2007.04.25 10:00:05.000'
prm_recieved = '2007.04.25 10:00:00.000'
or, 5 seconds and some miliseconds:
getdate() = '2007.04.25 10:00:05.123'
prm_recieved = '2007.04.25 10:00:00.000'
What I can not UNDERSTAND, why sometimes the time is equal, or
sometimes is ALMOST equal (within the diff of miliseconds), and why
sometimes the time is like this(!!!) :
It seams to me, the getdate is getting somehow the PERVIOUS local
system time, which was acctualy already upgraded ! Becasue all other
app's are having the proper value.
All other apps are writen in C++ and are very simple.
I was trying to set the SQLServer running property higher - with no
result.
I need to mention, there is SQLServer Agent running, and one procedure
with endless loop, with waitfor delay equal 2 seconds.
But non of them (changing the waitfor delay to other value, disabling
SQLAgent) fixes the problem.
Can somebody then tell me, where from is the time taken, or what is
the root problem of this issue?
Or what can it be?
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).
Is there a command that will let me set getdate() a in a smalldatetime field so that the there is no time associated with it?
For example, I have a table that I want to load the date a user does an action. If I use getdate() I'll get a value such as 5/25/2006 08:26:56.340, whereas I would just like a value 5/25/2006.
I can work it out by doing the following: select (datename(month,getdate())+'-'+datename(day,getdate())+'-' +datename(year,getdate()))
However it seems to me that there should be a simpler way.
I've been using the GetDate() function to populate a column in a table. But it populates it with both the date and time: 2000-11-08 11:22:28
I'd like it to just put in the date: 2000-11-08
I've tried the Convert function as well as other functions, to no avail. Some attempts have reversed month and day (I'm in Australia, so all PCs and Servers are set with a dd-mm-yy date format)
Hi,I am creating creating a table with a Date column dd-mm-yyyy. But Icant seem to find a SQL function that just returns today's date.getDate() returns the time as well so I cant use it.The reason is simply that I want to update/overwrite over and overagain all records from current day but not touch the ones fromyesterday etc and with the timestamp in there I just end up addingmore and more rows for the same day.In other words I only want to preserve rows are from yesterday orolder but overwrite ones from today.Any help will be appricated.Thank you!Yas
the ssis expression language getdate() function returns the current date with the current time. i only need to get the current date, without the current time. for example: 9/1/2006
how would i construct the proper expression to return this value?
I have used the GETDATE() function within an expression to create a directory name based on the current date. I am in the Sydney time zone and the new day's folder name doesn't change until after 11 am - so GETDATE() is picking up the date and not adjusting for the time zone. How do I either set the time zone within the package or make the GETDATE() function look at time zone of the system on which it is run?
What is the proper way to ensure when pulling date between two getdates, that you include from midnight of the first getdate to 23:59 hours in the second getdate?
WD.WRKD_WORK_DATE and WD.WRKD_WORK_DATE between DATEADD(DD, - 11, GETDATE()) and DATEADD(DD, - 5, GETDATE())
I'm using some files to show certain pages on certain date for an example
File name : aa.doc start date: 10/02/00 end date : 10/03/00
But it expires on 10/02/00, here is the strored procedure:
Before the date comes, it expires the page Here is my stored procedure:
" SELECT startdate, enddate,archivedate and (startdate is null or (getdate() >= startdate and getdate() <= enddate)) and (archivedate is null or (getdate() <= archivedate)) group by startdate, enddate order by startdate desc "
When I use the getDate() function I get something like 2005-03-09 15:13:45.017 but I don't want the time, just 2005-03-09 how do you strip out the time from the result? Thanks
However, when I run select getdate() in Sql 6.5 I get the following Apr 27 2001 11:59AM
Both queries are run from the QueryIsql window.
How can I get the sql 7 version of getdate to be exactly the same as the sql 6.5 version from the query window without resorting to usign the convert function?
According to Sql 7 books online, getdate "Returns the current system date and time in the Microsoft® SQL Server™ standard internal format for datetime values"
I'm facing some strange problem here: -----------------------------------------
I'm using some files to show certain pages on certain date for an example
File name : aa.doc start date: 10/02/00 end date : 10/03/00
But it expires on 10/02/00, here is the strored procedure:
Before the date comes, it expires the page Here is my stored procedure:
" SELECT startdate, enddate,archivedate and (startdate is null or (getdate() >= startdate and getdate() <= enddate)) and (archivedate is null or (getdate() <= archivedate)) group by startdate, enddate order by startdate desc "
i am also trying to write a query that retrieve information on yesterdays new registered member. So far as i am concern with sqlserver you use the getdate()-1 to retrieve this information. But the problem i get when i try to use the getdate()-1 is that i tend to get todays and yesterdays registered users. Is there anywhere that i would be able to retrieve information on just yesterdays new registered members and also only todays new register members.
I know this is going to sound really daft, but what is the easiest way of getting today's date without the time? Getdate() on it's own doesn't work because it always brings out the time. I know I'm missing something really basic but I can't figure it out.
G'day, I want to display the current time minus 5 minutes. say 2004-03-29 11:43:49.123 to be 2004-03-29 11:38:49.123.
Is there any Equivalent to the DB2's CURRENT TIMESTAMP - 5 MINUTES which will display the current day say 2004-03-29 11:43:49.123 as 2004-03-29 11:38:49.123
Hi, when I used getdate() fuction, its giving the correct time in this format 10/02/2007 01:04:31 PM. But I need the time in 24 hour format. Means it should be like 10/02/2007 13:04:31.
select H.IsoDate, HI.Country, HI.Center, H.ExchangeCode, HC.Holiday, H.HolidayCode from Holidays H join HolidayInfo HI on HI.Code = H.ExchangeCode join HolidayCodes HC on H.HolidayCode = HC.Code where H.isodate = getdate()
This is a script but the getdate part is not working can somebody point me in the right direction where i might be going wrong.
I am setting up a table and I want to capture the creation date of each record when it comes in. Obviously the easy way to do this is set the dfault value of this field to getdate(), but I am wondering if there is a benefit to using an insert trigger instead?
I will also be adding a seperate updatedOn field and plan to use an update trigger to populate it. If there is a better way to do either of these please let me know.
To write the current date to the console (for debugging purposes). Only problem is it only shows hours and minutes (not seconds). Can anyone suggest an equivalent that shows seconds as well?
Hi , I have problem with Getdate() i want to create Guest book with VWD 2005 and SQL 2005 I have same problem here for Q1, http://forums.asp.net/thread/1513111.aspx
I put the Defualt value for the date : getdate() and then I create insert page, but i got the error below I tried to [Allow Null] for the data field in sql 2005, but when I add new entries, there is no date entered to the DB. Can you Help. thank you --------------------------------------- Cannot insert the value NULL into column 'guestdate', table 'tour2.dbo.gues'; column does not allow nulls. INSERT fails.The statement has been terminated
Hello All, I have a problem as follows if i execute SELECT GETDATE() statement multiple times in a single run it returns me the same datetime without any difference in even milliseconds. I am unable to figure out what is wrong. I am assuming that whenever executed in a transaction it will give the same result. could anybody let me know what is correct. Thanks for your help in advance. SELECT GETDATE() SELECT GETDATE() SELECT GETDATE() SELECT GETDATE() SELECT GETDATE() SELECT GETDATE() SELECT GETDATE() even then i get the same date.
Hi,I want to fetch all records of a table where the datefield (datetime field) equals getdate().select * where mydatfield = getdate()but this gives nothing because getdate() which also contains the min. and seconds, is always greater than the data field which contains 00:00 as min/seconds.Any help would be appreciated.ThanksTartuffe
hi allcan somebody tell me how can i insert todays date in sqlserver 2000 in dd/mm/yyyy format...i knw we use getdate but how exactly..plz write the code for me...i have datetime as datatype for my column name.....i want it in this format because i am using a datetimepicker to compare values while retreiving the data..and this datetime picker is taking dd/mm/yyyy format so i want to insert records in that format...plz helpthanks in advance
