How To Group By A DateTime Column?
Jan 22, 2008
I have a column which Data Type is DateTime the value is looks like 2008-01-18 16:40:39.560
if I want to group by this column only compare with yyyy/mm/dd , don't care the Time
How to write a Sql Query to fit this request?
the values in Columns like below
2008-01-18 16:40:39.560
2008-01-18 16:40:39.560
2008-01-18 16:40:39.560
2008-01-18 16:40:39.560
2008-01-18 17:10:02.857
2008-01-18 17:10:37.373
2008-01-18 17:10:37.373
2008-01-18 17:11:57.187
2008-01-18 17:12:22.810
2008-01-18 17:13:01.450
2008-01-18 17:13:37.153
2008-01-18 17:13:52.450
2008-01-18 17:14:10.640
2008-01-18 17:14:24.653
2008-01-18 17:14:41.153
2008-01-18 17:15:09.357
2008-01-21 14:55:18.560
thank you for your posting .
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Mar 3, 2008
I wirte my query as:
select mydate
from mytable
group by mydate
ordre by mydate
The datatype of mydate column is DateTime. The result is showing me same repeating groups e.g.
2/27/2008 12:00:00 AM
2/27/2008 12:00:00 AM
2/27/2008 12:00:00 AM
Please help so that my query can give me unique groups.
Regards,
Professor Corrie.
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Aug 3, 2015
How can I calculate a DateTime column by merging values from a Date column and only the time part of a DateTime column?
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Sep 29, 2015
I have an SSRS 2012 table report with groups; each group is broken ie. one group for one page, and there are multiple groups in multiple pages.
'GroupName' column has multiple values - X,Y,Z,......
I need to group 'GroupName' with X,Y,Z,..... ie value X in page 1,value Y in page 2, value Z in page 3...
Now, I need to display another column (ABC) in this table report (outside the group column 'GroupName'); this outside column itself is another column header (not a group header) in the table (report) and it derives its name partly from the 'GroupName' Â values:
Example:
Value X for GroupName in page 1 will mean, in page 1, column Name of ABC column must be ABC-X Value Y for GroupName in page 2 will mean, in page 2, column Name of ABC column must be ABC-Y Value Z for GroupName in page 3 will mean, in page 3, column Name of
ABC column must be ABC-Z
ie the column name of ABC (Clm ABC) Â must be dynamic as per the GroupName values (X,Y,Z....)
Page1:
GroupName          Clm ABC-X
X
Page2:
GroupName          Clm ABC-Y
Y
Page3:
GroupName          Clm ABC-Z
Z
I have been able to use First(ReportItems!GroupName.Value) in the Page Header to get GroupNames displayed in each page; I get X in page 1, Y in page 2, Z in page 3.....
However, when I use ReportItems (that refers to a group name) in the Report Body outside the group,
I get the following error:
Report item expressions can only refer to other report items within the same grouping scope or a containing grouping scope
I need to get the X, Y, Z ... in each page for the column ABC.
I have been able to use this - First(Fields!GroupName.Value); however, I get ABC-X, ABC-X, ABC-X in each of the pages for the ABC column, instead of ABC-X in page 1, ABC-Y in page 2, ABC-Z in page 3, ...
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Jul 9, 2007
Hi,
I'm inserting a datetime values into sql server 2000 from c#
SQL server table details
Table nameate_test
columnname datatype
No int
date_t DateTime
C# coding
SqlConnection connectionToDatabase = new SqlConnection("Data Source=.\SQLEXPRESS;Initial Catalog=testdb;Integrated Security=SSPI");
connectionToDatabase.Open();
DataTable dt1 = new DataTable();
dt1.Columns.Add("no",typeof(System.Int16));
dt1.Columns.Add("date_t", typeof(System.DateTime));
DataRow dr = dt1.NewRow();
dr["no"] = 1;
dr["date_t"] = DateTime.Now;
dt1.Rows.Add(dr);
for(int i=0;i<dt1.Rows.Count;i++)
{
string str=dt1.Rows["no"].ToString();
DateTime dt=(DateTime)dt1.Rows["date_t"];
string insertQuery = "insert into date_test values(" + str + ",'" + dt + "')";
SqlCommand cmd = new SqlCommand(insertQuery, connectionToDatabase);
cmd.ExecuteNonQuery();
MessageBox.Show("saved");
}
When I run the above code, data is inserted into the table
The value in the date_t column is 2007-07-09 22:10:11 000.The milliseconds value is always 000 only.I need the millisecond values also in date_t column.
Is there any conversion needed for millisecond values?
thanks,
Mani
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Feb 28, 2014
I'm having a fight with Reporting Services at the minute when trying to compute an average at the row group level for a value summed in a column group.I have the following column groups:
Year
Month
Date
And the following row groups:
Region
Product
SubType (hidden, data at the date level is summed to Product)
At the moment I'm computing the average for SubType for each Date at the Product level (giving a decimal value), so for each day I end up with a nice average, that works. However I am unable to average that average over the whole Year for a Product. The issue being that I'm trying to combine Row Groups (Product) and Column Groups (Date/Year)
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Aug 9, 2007
here is problem with datetime data type
when taking
group by createdate
that is in 8/8/2007 12:00:00 AM format
I dont want group for time 12:00:00 AM only group by for
date 8/8/2007 which format is mm/dd/yyyy
how can I do
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Nov 19, 2006
Hi all,
I have a problem with my query which is suppose to select count posts group by the date, the query works but doesnt return the count as i want, i think the problem that the datetime column contains also Time in hours which ofcourse isnt same in all rows in same day, so i dont know what to do, Here's my Query:
SELECT PostID, Date, COUNT(Date) AS 'TotalPosts' FROM Posts GROUP BY PostID, Date
Thank you for help
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Jul 11, 2014
I have Table Like this
t_id w_id t_codew_name
358553680A1100EVM Method Project
358563680A1110EVM Method Project
358453684A1000Basic
358463684A1010Basic
358473685A1020Detail
[Code] ....
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May 19, 2015
i dont't know how to select row with max column value group by another column. I have T-SQL
CREATE PROC GET_USER AS
BEGIN
SELECT T.USER_ID ,MAX(T.START_DATE) AS [Max First Start Date] ,
MAX(T.[Second Start Date]) AS [Max Second Start Date],
T.PC_GRADE,T.FULL_NAME,T.COST_CENTER,T.TYPE_PERSON_NAME,T.TRANSACTION_NAME,T.DEPARTMENT_NAME ,T.BU_NAME,T.BRANCH_NAME,T.POSITION_NAME
FROM (
[code]....
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Jul 16, 2005
Hi All,I faced this strange problem with sql server. I have datetime column and storing value from asp.net. If the user doesnt enter any date, then we dont want any value to be stored in the database. But when we checked SQL Server, it default takes this value "01/01/1900". When users clicks on edit button, this value is fetched from database and stored in front end. I dont want this value to be stored in database if i didnt provide value. But in 1 particular page, there are 5 different date columns. I am not sure about how to go ahead. I tried the following way, but again ended up with same problem.insert into tablename.......values (...., txtFromDate.text, txtToDate.text,....). Since value is not there, '' is sent to database and above said value is stored. i want NULL to be stored in teh database when user didnt specify any value.i didnt encounter this problem in Oracle.appreciate your reply.
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Dec 27, 2005
hi, i was wondering how to set default value in the datetime column of the database so that it will enter current date and time if one is not provided when a row is populated. is there a store procedure to do this? or built-in function?
mp
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Jun 18, 2001
Hi Guys,
I have to take only time from DateTime column filed value.
Is there any function in SQL Server which will give us time only.
Thanks,
Rau
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Jul 21, 2000
I've got have a populated table and I want to convert a datetime column so it lists the date only (without the time component)
I tried to run this as a script, but returns an error:
update <table>
where <column>=convert(datetime,convert(char10),<column>,101))
When I run only this part, it does strip the date of the time component but it becomes a string, and I need this field stored as a datetime field:
convert(char(10),hire_date,101)
I'd appreciate any suggestions :)
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Apr 20, 2005
I'm trying to update a datetime column from another datetime column. However, I just want the date transferred to the new column without the time. Any ideas? Thanks for your help.
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Aug 3, 2007
I have column that hold datetime , i want to split the column into many columns ex:
column --> 01/01/2007 00:00:00
i want tp split to day month year hour minute second
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May 15, 2015
In SQL server I have the column doTableDate set a Datetime.I need extract all rows in on date range and I think use to syntax `Between And` If try this version of query I have in output 889 rows all with date 2014-01-03... but I have other records with date 2014-01-04 in column doTableData...
SELECT
*
FROM
doTable
WHERE
doTableDate BETWEEN CONVERT (
datetime,
[code]....
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Mar 27, 2006
hi ppls..
we have sql server 2000 EM. we received daily xml files and we insert into our database.there is one column Date_T having data type datetime.till date we recieved this records from xml as '03/23/2004 12:23:34:956' but due to some duplicate isssue we now want to modified this column to recieve as milliseconds like '03/23/2004 12:23:34:956232' now my point is wheather sql server handle this kind of milliseconds..please help me out as early as possible..
T.I.A
Papillon
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Jul 11, 2006
I'm having a hard time getting one of my tables to use a non clustered index that I have on a DateTime column.
A sample version of the table is something like this
CREATE TABLE Appointments
(
ID INT NOT NULL,
AppointmentDate DateTime NOT NULL
)
with a clustered primary key on ID and a nonclustered key on AppointmentDate.
This production table has over 1million rows and the problem I have is this:
If I do a SELECT * FROM Appointments where AppointmentDate >= '20060701' AND AppointmentDate < '20060702' the Non clustered index on the AppointmentDate column works fine. i.e. I'm returning all appointments for the 1st of July.
Now if I run the exact same query using datetime parameters, a Clustered index scan is performed instead of an index seek.
DECLARE @AppDate DateTime
SET @AppDate = '20060701'
SELECT * FROM Appointments WHERE AppointmentDate >= @AppDate and AppointmentDate < DATEADD(day, 1, @AppDate)
Any ideas why it would do this?
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Oct 1, 2007
HI friends,
Using SmallDateTime in SQL Table, how can I enforce M/DD/YY format on column of type smalldatetime in SQL ServerDB.
What happening is that SQL convert this to YYYY-MM-DD, when my DTS package brings data to table?
Note : output of DTS package is MM/DD/YY format.
Thanks,
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Feb 16, 2008
Hello.
In SQL server 2000 (or 2005) I have a need to query a table for rows with the max date value in a datetime column.
Currently I coded the following to give me a specific date in the column:
...where R.start_time >= '02/15/2008' and R.start_time < DateAdd(day, 1, '02/15/2008')
This gives me the rows with the exact date of 02/15/2008.
So, if I don't want to hard-code the date or pass it as a parameter how can I always get the maximum date back from the query?
Thanks.
Walter
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Apr 16, 2008
HOW DO I CONVERT DATA AND TIME COLUMNS TO DATETIME COLUMN.
I HAVE A REQUIREMENT TO FIND OUT THE MAX AND MIN OF DATE AND TIME COLUMNS WHICH ARE TWO SEPARATE COLUMNS ALL TOGETHER.
I HAVE DATA IN COLUMN1 AND TIME IN COLUMN2
HAVE TO CONCATENATE BOTH THE COLUMNS TO GET THE MAX AND MIN TO DATE.
EXAMPLE I TRIED TO DO :
SELECT MIN(convert(datetime, VH_DATETIME,121),
MAX(convert(datetime,VH_DATETIME, 121))
FROM (SELECT TOP 10 INPUT_DATE+INPUT_TIME AS VH_DATETIME FROM ADMINDB.dbo.SSIS_VISIT_HIST) VH
Please help me in resolving this issue. Thank you
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Feb 13, 2008
Hi, I have a table with 3 columns ( Id int, theValue float , aDate datetime). I want to select the number of rows (count) for which the interval of aDate is less than 7 seconds. Is there a way to achieve that in a single query.
PS: This query will be perform on a dataset, that means that I can't use cursor.
Thanks
Sylvain
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Jul 13, 2006
Hello,
I am wondering if someone could help me with formatting datatime column.
Goal - keep column in datatime instead of convert to varchar
Current - '2006-06-21 16:54:33.000'
Wants - '2006-06-21 16:54:33'
Any help is appreciated!
-Lawrence
Code Bits
declare @time datetime
set @time = '2006-06-21 16:54:33.000'
select @time, convert(varchar(255), @time, 20)
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Nov 5, 2007
Hi,
I am trying to access a date column up to millisecond precession. So I cast date to as follows:
Code BlockCONVERT(varchar(23),CREATE_DATE,121)
I get millisecond part as a result of query but it€™s €œ000€?.
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Feb 10, 2008
Hi,
Say I have the table below:
Tabl1
PKey ColA ColB ColC
1 a1 b1 c1
2 a1 b2 c2
3 a1 b3 c3
... a2 ...
...
... a3 ...
...
If I group by ColA with the select statement as follows:
SELECT
ColA, MAX(ColB),
FROM
Tabl1
GROUP BY
ColA
If for example for a1 the MAX(ColB) is b2, THEN I would like to include ColC in the select statement such that for a1 the resulting row would be:
ColA ColB ColC
a1 b2 c2
What is the best way to do this?
TIA!
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Jan 11, 2008
Hi
I have table and the column as ID, orderID, Uprice, weight ...upto 25 column.
ID, orderID, Uprice, weight
1 123 5.50 100
2 327 8.90 350
3 625 5.70 200
4 123 11.80 345
How do I sum the total of UPRICE group by orderID and select rest of the columns as well. ( SUM only the Uprice)
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Dec 16, 2006
Well yeah as the topic says, this is my sql question right now;string date = "2006-11-12"; string sql = "SELECT * FROM spell_of_work WHERE date='{0}'",date);problem is that my date column in the table is datetime and not a date so.. error! i dont know if RLIKE or LIKE can help, wating for a reply!herman
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Nov 12, 2007
can anybody tell me how to do a select query on a datetime field where if i have a null value in that column, i need to display a some character.
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Jan 24, 2002
Hello everyone, I have searched and seached for an answer to something that I know has to be simple but have been unsuccessful. I appreciate any help...
I am trying to take a char (6) column named col001 and convert it to datetime.
The column is in mmddyy format. I am using SQL 2000, but have available sql 7.0 servers if there is a difference. I expect that I have to write a cursor but have been unable to get the correct syntax. Thanks everyone
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Dec 14, 2005
Dears
I'd like to get the recordset of records that do NOT have the written value in datetime type column, for ex.
select * from my_data where its_data not like '%00:00:00%' and its_data >= '2005-05-10' and its_data <='2005-05-12'
or
select * from my_data where its_data not like '00:00:00' and its_data >= '2005-05-10' and its_data <='2005-05-12'
in such command I have all records also with (not desired) time 00:00:00 like 2005-05-11 00:00:00
Who knows the proper syntax?
Rgds
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Jun 29, 2005
G'day,
I have a datetime column that holds dates and times like
30/06/2005 1:31:00 PM
How would I find all rows that match a certain date regardless of the time, (IE, select all rows with a date of 30/06/2005 with any time)
Thanks,
Robbo
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Jan 21, 2012
Below is my query.Its working great if i remove ,Cast(C.ClassTime as time) as StartDate.But when i use this i get an error as The conversion of a varchar data type to a datetime data type resulted in an out-of-range value My ClassName is a varchar.Whose definition i cant change to DateTime now.But i want to cast it to DateTime.
Code:
Select C.ClassID as Appointment_Id,C.ClassName as Appoitment_Descr,Cast(C.ClassTime as time) as StartDate,C.EndClassTime as EndDate, 'Class' as Type
From Dojo D inner join DojoClass C on D.SchoolID = C.DojoSchoolID
Where D.SchoolID = @DojoID
and C.Days like'%' + @Days + '%'
Union
Select E.DojoEventID as Appointment_Id,E.EventName as Appoitment_Descr , E.EventStartDate as StartDate , E.EventEndDate as EndDate,'Event' as Type
From Dojo D inner join DojoEvent E on E.DojoID = D.SchoolID
Where D.SchoolID = @DojoID and @Date
Between E.EventStartDate and E.EventEndDate
how can i cast it correctly?
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