Joining On Datetime Fields

Jul 26, 2002

I am trying to join two tables and the datetime fields need to be part of the join. They contain times in the fields too. I just need them to join on the date part though. Is there maybe a way to just return the mm/dd/yyyy format and join on that? Any and all help is appreciated.

Thanks,
Chris

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Joining Two Fields In A Query

Apr 26, 2006



I am trying to join two fields in a query in SQL 2000. For example.

Update myTable SET field_1 = @field_1_value , field_2 = @field_2_value, field_3 = @field_1_value + ' x ' + field_2_value



Is this even possible.

I want the user to input values for fields 1 and 2, then in the background combine the two and insert that value in field 3.



Thanks in advance,

Scotty_C

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Feb 12, 2007

I have a sql 2005 dev ed running an application developed in vs.net 2005 C# I have several gridviews which have a field call first name and a field called lastname I need to put both the firstname and lastname in the same cell or colum row. I do not now how to join these. Can some one help me with a SQL query string that will do this for me.

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Sep 27, 2006

Question.I have a new table that I am adding to a script that I wrote. Thistable has 3 fields, the first 2 fields are used in the on statement asbeing = other fields in the script.The first field always has data in it, but the 2nd field is sometimesnull.So my problem is if both fields have data in them and they both matchto the data in the fields that I am linking them to, then it returnsthe 3rd field without a problem. However if the 2nd field is null thenit is returning a null for the 3rd field. I have checked and the fieldthat I am linking to is null also.So if I haveselect t1.field1, t1.field2, t2.field1, t2.field2, t2.field3from table1 t1join table2 t2on t1.field1=t2.field1 and t1.field2=t2.field2with 2 records in each tabletable1: record1: data, datarecord2: data, nulltable2: record1: data,data,datarecord2: data,null,datawhat I get from the script isrecord1: data, data,data,data,datarecord2: data,null,data,null,nullI would expectrecord2: data,null,data,null,dataI hope this makes sense, I didn't want to post the entire actual scriptas it is about 150 lines long.Thanks in advance.

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Jun 14, 2006

If I have a database table with the following columns:
ID
Other_ID
Description

And I want to join the two ID fields to one field in another table that contains the following fields:
ID
Name

How would i do that?

Here is some sample data and what I would like returned

TABLE1

ID Other_ID Description
row 1 1 2 Number1
row 2 3 1 Number2

TABLE2

ID Name
row 1 1 John
row 2 2 Bob
row 3 3 Bill

I want to query TABLE1, row 1 so that I pull back the Names for the values stored in the ID and Other_ID fields so that my results are like:
John Bob Number1

The only way around it now is that I store Other_Name in Table1.

Thanks.



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Jun 13, 2014

I have a simple query which displays items from inventory with their latest annual test date. I want to create another unique reference in my results to use as a certificate number. The number should be a combination of the item+month+year from the test date. What is the easiest way to accomplish this?

My query and my desired results are below:

select item, test_date
from inventory
where cat = 'TELE' and itemised_status > 15

item test_datecert_no
-------------------- ----------------------------------------
05MC0002 2014-06-10 00:00:0005MC0002-06-2014
06MT0001 2014-05-13 09:02:0006MT0001-05-2014
06MT0002 2014-05-13 09:03:0006MT0002-05-2014
06MT0003 2014-05-13 09:03:0006MT0003-05-2014
06MT0004 2014-05-09 14:12:0006MT0004-05-2014

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Nov 30, 2007

Can someone comment on why joining two tables on CHAR fields of different lengths would generate unexpected results?

I had an issue where I ran an update that used an inner join on two tables. The field I used in the join was char(50) in one table and char(13) in another table. The result gave bad matches. After changing the field types both to varchar(30), the problem was eliminate.

Any comments on this would be appreciated.



Rye Guy

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Joining Records By Nearest Datetime

May 19, 2008

Hi,

I have such a scenario:
- two tables with record containing car vehicle number, datetime of message and other data like weight ect.
- first table contains only two messages for one car per one day
- second has many messages for one car for one day

I would like to get a list of messages from first table but joined with the nearest (previous) record for the same car from second table.

Thanks,
Przemo

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Mar 11, 2014

I am querying a table log file in an attempt to get the most recent status of an item. The items can have a variety of different statuses:

(A = Active, R = Repeat, L = liquidation......)

Here is a sample of the data I am trying to report off of:

CREATE TABLE [dbo].[item_status](
[item_number] [varchar](20) NULL,
[sku] [varchar](100) NULL,
[Field_Name] [varchar](50) NULL,
[Old_Value] [varchar](150) NULL,
[New_Value] [varchar](150) NULL,
[Change_Date] [smalldatetime] NULL
) ON [PRIMARY]

[code]...

I have tried join to the same table - but I am still unable to get it to work.

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Jan 17, 2002

I would like to compare 2 fields.. One of which is generated by the application upon insert. The other which is today's date.

In other words I want all records with today's date.

Problem is I get no results because I'm also apparently comparing the time.

Do I use a CONVERT function on my select & GETDATE outputs?

Thanks,
Kelly

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Comparing Datetime Fields

May 22, 2002

I have a table with a DateTime field that has Dates in the format of mm/dd/yyyy I want to do a simple count on the table for the previous day but keep getting 0 for the results. Here is the script I've been trying.

SELECT COUNT(*)
FROM mytbl
WHERE Collected_Date = DateAdd (dd, -1, GetDate())

It appears to me that the time portion of the DateAdd function keeps the matches that I am looking for from happening. What am I missing or am I going about this all wrong?

Thanks for any help

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Jul 20, 2005

I'm looking for an efficient t-sql script to loop through all usertables in a db and determine/print the value of each row having adatetime field (including cases where there are multiple datetimefields per row)Help greatly appreciated..

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Jul 12, 1999

Hi,
When I try to insert a new record into a table that has a datetime field that allows nulls, a default 01/01/1900 date is inserted instead of null. I recreated the table and set the datatype to smalldatetime and I still get the error. What have I missed?

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Jun 9, 2006

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.

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Nov 12, 2007

I have a requirement to display the elapsed time between two datetime fields. What i have been able to do is datediff the dates and get the elapsed time in minutes and then i am trying to format it as HH:MM.

For example, an activity started on Nov 1 2007 08:00 and finished Nov 1 23:59, the elapsed time should be displayed as 15:59.

The other example is if the activity spans over a couple of days, it should be say 49:03.


I put the following code in the format of the textbox, but it only seems to work when the length of the minutes is greater than 1.


=IIF(Len(CStr(Fix(ReportItems!textbox11.Value/60)))= 1,

"0" + CStr(Fix(ReportItems!textbox11.Value/60)),

CStr(Fix(ReportItems!textbox11.Value/60)))

+ ":"

+ IIF(Len(CStr(Fix(ReportItems!textbox11.Value Mod 60)))= 1,

"0" + CStr(Fix(ReportItems!textbox11.Value Mod 60)),

CStr(Fix(ReportItems!textbox11.Value Mod 60)))


Have i missed something really simple or what? Any help would be much appreciated.

Alternatively, if you have a better way of doing the whole thing would like to hear from you.

Thanks in advance.

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Jun 21, 2006

Hi ,

I've a DateTime field in a table and I want to separate it into two fields in an SQL Server 2005 view one for Date and the other for Time so What is the function I can use to do this process?

Best Regards,

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Dec 26, 2006

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.

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Combine Separate Date &&amp; Time Fields Into One Datetime Field?

Dec 26, 2006

Good morning.

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.

Cheers mates.

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Jan 12, 2006

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Jan 28, 2008


I have just started using SQL Server reporting services and am stuck with creating subreports.

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For example, In the dropdownlist for the Parameter value, I see Sum(Fields!TASK_ID.Value, "AppTest"), Count(Fields!TASK_NAME.Value, "CammpTest") but not Fields!TASK_NAME.Value, Fields!TASK_ID.Value which are the fields retrieved from the dataset assigned to the subreport.

When I manually change the parameter value to Fields!TASK_ID.Value, and try to preview the report, I get Error: Subreport could not be shown. I have no idea what the underlying issue is but am guessing that it's because the field - Fields!TASK_ID.Value is not in the dropdown but am trying to link the main report and sub report with this field.

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Thanks,
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Feb 20, 2008

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can this be possible in SQL Server without explicitly writing the"ashu" table's fields name.

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sir

I have got this error message to establish connction with recordset vb .net, Can you please rectify this

Too many arguments to 'Public Overridable ReadOnly Default Property Fields() As ADODB.Fields'

my code like this


rs = New ADODB.Recordset

rs.Open("Select * from UserLogin where userid='" & txtUserName.Text & "'", gstrDB, DB.CursorTypeEnum.adOpenStatic)


If txtUserName.Text = rs.Fields.Append(userid) Then


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Jul 23, 2005

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I have Providers, a unique ID that Providers will have multiples of, and then decimal fields. Here are my fields:

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Here is sample data:

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2, Harbor, A07B8, 400.00, 800.00
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4, Harbor, B01C8, 300.00, 1100,00
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Hi,
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SQL server table details
Table nameate_test
columnname datatype
No int
date_t DateTime

C# coding
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dr["no"] = 1;
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DateTime dt=(DateTime)dt1.Rows["date_t"];
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cmd.ExecuteNonQuery();
MessageBox.Show("saved");
}
When I run the above code, data is inserted into the table
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my insert command:
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