I have 2 tables, each with one ID field, a separate Date and Time fields and a number of other fields. The tables contain duplicates on the ID field. I want to do a UNION keeping only the record with the latest Date and Time.
This would work: SELECT MyTab.myKeyField, Max(MyTab.myDate) AS myDate FROM (SELECT myKeyField, myDate from Table1 union SELECT myKeyField, myDate from Table2) AS MyTab GROUP BY MyTab.myKeyField
But is only taking care of Date, not Time (some records have the same date but different times) The other problem is, when I add more fields, I have to include them in the GROUP BY clause, and this way I end up with duplicates (because some other fields have different values)
I was working with Microsoft Time Series model (MTS) with some data, when in the mining model viewer, decision tree tab, I realized that the key time variable that I define, it was acting like a split variable.
So, I ask you, this is possible?, because, for me, this should not happen€¦.
After, I review the Data Mining Tutorial by Seth Paul, Jamie MacLennan, Zhaohui Tang and Scott Oveson, and I found, in the Forecasting part, that the key time variable (Time Index) it was acting like a split variable too, in for example, M200 pacific:Quantity and R250 Europe:Quantity.
So people, it€™s possible that a key time variable act like a split variable in a MTS model?
I have a field that contains only a date, and a field that only contains times. If I try to add the two together, I get some meaningless date like year 2111.
The raw data looks like this EVT_DT='2005-12-05 00:00:00' EVT_TM='2005-12-06 13:59:00' //today's date
I wrote a function that gives me the minutes past midnight for the EVT_TM and use a dateadd(n,myMinutesFuntion(EVT_TM),EVT_DT), but it kills the performance in the nexted cursor.
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
I would like to save only the time into the datetime field in a table. when I do this, It will save it as "1/1/1900 15:23:00" All I would like to have is the time! Is there a way to update it so that it will only save the time?
Hi,We have a lame app that uses 2 datetime(8) fields, 1 stores the date, theother the time.example query:select aud_dt, aud_tmfrom ordersresults:aud_dt aud_tm2006-06-08 00:00:00.000 1900-01-01 12:32:26.287I'm trying to create a query that give me records from the current date inthe past hour.Here's a script that gives me todays date but I cannot figure out the time:select aud_dt, aud_tm, datediff(d,aud_dt,getdate()), datediff(mi, aud_tm,getdate())from orderswhere (datediff(d,aud_dt,getdate()) = 0)results:aud_dt aud_tmdatediff(0=today) timediff (since 1900-01-01)2006-06-08 00:00:00.000 1900-01-01 12:32:26.287 055978689I added this next part to the above query but it does not work since thedate/time is from 1900-01-01and (datediff(mi, aud_tm, getdate()) <= 60)Thanks for any help.
I have a package variable that is a datetime... how am I able to set the time of that variable? In visual studio on the variables screen if I click on value it brings up a calendar control - I can't seem to edit the time portion of the variable.
When I first click open the variables window it will say 9/1/2006 12:00:00 AM - but as soon as I click on the value box the 12:00:00 AM part will disappear and I can't edit it. I've tried on someone elses PC as well to make sure there isn't something wrong with my visual studio
I am importing a csv file to SQL 2005 table. The source column is coming as datetime. The destination filed is a datetime type. I would like to update the destination with the time part from the source. I used the data conversion to convert it to time using "database time[DT_DBTIME]". For a source value "2/08/2007 21:51:07" this inserts a value "2007-08-03 21:51:07.000". I need the column to have a value as "1900-01-01 21:57:07.000".
Can someone please tell me how do I do this conversion?
We are migrating our database from DB2 8 to SQL Server 2005. We have date and time saperate columns in DB2. For example, Date_of_birth, Store_sun_open_time, Store_sun_close_time etc. For date we are using datetime. For time what datatype should we use in SQL Server?
StartDate - data type Date StartTime - data type Time
I need to combine them into a DateTime data type. For now, I convert each of them into varchar, insert space in between, and convert to DateTime, like this:
How do I extract the ate and time from a datetime field. The field is called Log_DateTime. I want to extract the date and the time and then use these two expressions to sort/filter on in Query Analyzer.
Good morning.I am importing an XLS file into one of my tables. The fields are:Date Id Time IO12/22/2006 2 12:48:45 PM 912/22/2006 16 5:40:55 AM 112/22/2006 16 12:03:59 PM 2When I do the import, I get the following:Date Id Time IO12/22/2006 12:00:00AM 2 12/30/1899 12:48:45 PM 212/22/2006 12:00:00AM 16 12/30/1899 5:40:55 AM 112/22/2006 12:00:00AM 16 12/30/1899 12:03:59 PM 2Here are my doubts:1. Would it be better to combine the Date & Time fields into onecolumn? If so, how?2. What issues or problems might I have when I program SQL reports, ifI leave the fields as they are?Any comments or suggestions will be very much welcomed.Cheers mates.
I am importing an XLS file into one of my tables. The fields are:
Date Id Time IO
12/22/2006 2 12:48:45 PM 9
12/22/2006 16 5:40:55 AM 1
12/22/2006 16 12:03:59 PM 2
When I do the import, I get the following:
Date Id Time IO 12/22/2006 12:00:00AM 2 12/30/1899 12:48:45 PM 2 12/22/2006 12:00:00AM 16 12/30/1899 5:40:55 AM 1 12/22/2006 12:00:00AM 16 12/30/1899 12:03:59 PM 2
Here are my doubts:
1. Is it be better to combine the Date & Time fields into one column? Advantages/Disadvantages? 2. If I don't combine them, should I use varchar or datetime data type? 2. What issues or problems might I have when I program SQL reports, if I leave the fields as they are?
Any comments or suggestions will be very much welcomed.
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.
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
I'm looking for a way of taking a query which returns a set of date time fields (probable maximum of 20 rows) and looping through each value to see if it exists in a separate table.
E.g.
Query 1
Select ID, Person, ProposedEvent, DayField, TimeField from MyOptions where person = 'me'
Table
Select Person, ExistingEvent, DayField, TimeField from MyTimetable where person ='me'
Loop through Query 1 and if it finds ANY matching Dayfield AND Timefield in Query/Table 2, return the ProposedEvent (just as a message, the loop could stop there), if no match a message saying all is fine can proceed to process form blah blah.
I'm essentially wanting somebody to select a bunch of events in a form, query 1 then finds all the days and times those events happen and check that none of them exist in the MyTimetable table.
How do we convert both of them into a single SQL DateTime field such as "2015-07-16 01:23:45.000" so that it can be used in a join restricting to a date time in a different SQL File that properly has the DateTime in it?
This works well for converting the transDate Part in the select statement:
  dbo.IntegerToDate(at.transDate) as transDate
  * That returns: "2015-07-16 00:00:00.000"
* The resulting data must work directly in a Microsoft SQL Server Management Studio Query using either using the "on" statement or part of the "where" clause. In other words, NOT as a stored procedure!
Also must be able to be used as a date difference calculation when comparing the 2 files Within say + or - 5 seconds.
How can I obtain just the time portion from a date/time column? My data contains "2008-05-19 09:30:00.000" Actually, all I want/need is the hh:mm part of it.
Nothing difficult, I just need a way to generate a new datetime column based on the column [PostedDate], datetime. So basically I want to truncate the time. Thanks a lot.
I am trying to implement a sliding window on a table in SQL Server 2005 but i am having some problem. I have two tables, "Letture" and "LettureStorico". The first one receives data on a few seconds basis, some thousands of rows each day. The second is the historical record and should store all the records till midnigh of two days before, that is, if today is November 21st, LettureStorico stores rows till November 19th 23.59:59.997.
At some time during morning of each day i want to run a stored procedures that takes the records older than midnight of two days before in "Letture" and switch them as a partition in "LettureStorico"
Here's what i do:
/*----------------------------------------------------------*/ CREATE PARTITION FUNCTION [partizioneLive](datetime) AS RANGE LEFT FOR VALUES (N'2006-11-15 00:00:00')
CREATE PARTITION FUNCTION [partizioneStorico](datetime) AS RANGE LEFT FOR VALUES (N'2006-11-15 00:00:00')
CREATE PARTITION SCHEME [schemapartizioneLive] AS PARTITION [partizioneLive] ALL TO ([PRIMARY]) ALTER PARTITION SCHEME [schemapartizioneLive] NEXT USED [PRIMARY];/*(1)*/
CREATE PARTITION SCHEME [schemapartizioneStorico] AS PARTITION [partizioneStorico] ALL TO ([PRIMARY]) ALTER PARTITION SCHEME [schemapartizioneStorico] NEXT USED [PRIMARY]; /*(1)*/
CREATE TABLE [dbo].[Letture]( [IdLettura] [bigint] IDENTITY(1,1) NOT NULL, [IdTag] [int] NOT NULL, [IdGatewayBox] [int] NOT NULL, [IsEntrata] [bit] NOT NULL, [Data] [datetime] NOT NULL, [IsRettifica] [bit] NOT NULL, CONSTRAINT [PK_Letture] PRIMARY KEY CLUSTERED ( [Data], [IdLettura] ASC )WITH (IGNORE_DUP_KEY = OFF) ON schemaPartizioneLive(data) ) ON schemaPartizioneLive(data)
ALTER TABLE [dbo].[Letture] WITH CHECK ADD CONSTRAINT [CK_Letture] CHECK (([Data]>='20061115 00:00'))
CREATE TABLE [dbo].[LettureStorico]( [IdLettura] [bigint] IDENTITY(1,1) NOT NULL, [IdTag] [int] NOT NULL, [IdGatewayBox] [int] NOT NULL, [IsEntrata] [bit] NOT NULL, [Data] [datetime] NOT NULL, [IsRettifica] [bit] NOT NULL, CONSTRAINT [PK_LettureStorico] PRIMARY KEY CLUSTERED ( [Data], [IdLettura] ASC )WITH (IGNORE_DUP_KEY = OFF) ON schemaPartizioneStorico(data) ) ON schemaPartizioneStorico(data)
ALTER TABLE [dbo].[LettureStorico] WITH CHECK ADD CONSTRAINT [CK_LettureStorico] CHECK (([Data]<'20061115 00:00'))
Every morning i run a stored procedure that, after dropping the check constraints (i'll recreate the at the end), does the following:
/*-----------------------------------------------------------*/ SET @NewBoundary = dateadd(dd,-1, @dateOfToday)
--this new partition contains the rows i want to switch ALTER PARTITION FUNCTION PartizioneLive() SPLIT RANGE (@NewBoundary) --this new partition is empty ALTER PARTITION FUNCTION PartizioneStorico() SPLIT RANGE (@NewBoundary)
--this works fine, rows are moved ALTER TABLE Letture SWITCH PARTITION 2 TO LettureStorico PARTITION 2
--these two merges lead to two tables partitioned in two partitions each ALTER PARTITION FUNCTION PartizioneLive() MERGE RANGE (@OldBoundaryLive) ALTER PARTITION FUNCTION PartizioneStorico() MERGE RANGE (@OldBoundaryStorico)
Till now, everything is working as expected. Now, when i try to run the same Stored Procedure " a day later" (NewBoundary moved on 1 day) i receive, when i do the "ALTER PARTITION FUNCTION PartizioneLive() SPLIT RANGE (@NewBoundary)" i receive a 7707 error message: "Msg 7707, Level 16, State 1, Line 1 The associated partition function 'PartizioneLive' generates more partitions than there are file groups mentioned in the scheme 'schemapartizioneLive'."
How is this possible if i used the "ALL TO [PRIMARY]" and specified which file to use next as in (1) ? Why all this succeeds the first time (when i have 3 partitions) but not the second (again i have just three partitions, i checked) ?
