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Ok Got it working (first module) as far as functionality. But I have a problem with what is actually writing to the database. Here is the command in question:
cmdUpdateTime.Parameters.Add("@TimeIn",SqlDbType.SmallDateTime).Value = DateTime.Now.ToShortTimeString();
Using the debugger, after this command, this parameter is in the format "HH:mm:ss AM/PM", but is being stored as "MM/DD/YYYY HH:mm:ss: AM/PM"
Why is this?
Thanx again ( and again...)
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Hi,
I have 2 tables, t_a, t_b:
They are linked by a common_idd fieldd.
I want to find out the rows in t_a, but not in t_b.
My sql like:
select * from t_a where t_a.common_id not in (select common_id from t_b)
it works, but because there are so so many rows in both of the 2 tables, it runs so so so slow!!!
I am using Access, is there any way to implement the same function???
please help me!!
Thank a lot!
Alan Shen
MCAD for .NET Version
^~^~^~^~^~^~^~^~^~^~^
Great idea is the beginging of success!
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Since it's Access, you may not be able to speed it up anyway!
But try this
select * from t_a
where not exists ( select t_b.common_id from t_b
where t_b.common_id != ta.common_id
)
As long as the field common_id is INDEXED on both tables it should be much faster.
Chris Meech
I am Canadian. [heard in a local bar]
When I want privacy, I'll close the bathroom door. [Stan Shannon]
BAD DAY FOR: Friendly competition, as Ford Motor Co. declared the employee parking lot at its truck plant in Dearborn, Mich., off limits to vehicles built by rival companies. Workers have to drive a Ford to work, or park across the street. [CNNMoney.com]
Nice sig! [Tim Deveaux on Matt Newman's sig with a quote from me]
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Hi,
I have created 2 tables in Visual Studio 2005, and am attempting to access the Database Diagrams. When I am not connected to our network domain, I get the message, "This database does not have a valid dbo user... Do you want to make yourself the dbo of this database in order to use database diagramming?" I then select "Yes", but then I receive the message that, "This database does not have a valid dbo user, or you do not have permissions to impersonate the dbo user".
As soon as I connect to our network, I have no problems. But If I want to take my work home, I cannot access the Database Diagrams.
My question is, how do I create a valid dbo user in Visual Studio 2005 SQL Express edition?
Thanks in advance,
Rashar
-- modified at 11:56 Wednesday 8th February, 2006
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How can we retrive the day(Sunday,Monday....etc) of a date
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You can use the following code:
<br />
lblDay.Text=Format(Now().Today, "dddd")<br />
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Is it in C# or SQL?
In C#, use the DayOfWeek[^] property.
In T-SQL use DATEPART[^] to get the weekday part.
I hope this helps!
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
The amount of sleep the average person needs is five more minutes. -- Vikram A Punathambekar, Aug. 11, 2005
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Hi all,
im having problems using a alias name to perform calculations in the select clause. My code is as follows:
SELECT<br />
<br />
CASE WHEN STK_SORT_KEY2 = 'TREND' THEN ([OD_UNITCST] * (1 - ISNULL(dbo.TrendDiscount.Discount, '0.32'))) ELSE 0 END as Expr2, <br />
[Expr2] / [OD_UNITCST] AS Expr11<br />
<br />
FROM...<br />
My question is how do use a field to store calculations which i can reference later in the select clause. I keep getting a Invalid name 'Expr2' error
Any ideas?
Thanks in advance,
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I think you need to enter the full calculation for your Expr11 field. I don't think you can refer to it by the alias.
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Hi,
I'm using a OleDbDataReader to get values from a MS Access db.
I've noticed that if the db field is "null" I get an error, so I
put in: myReader.IsDBNull (see code below). Is there a better way to code this null value protection? (besides forcing no nulls in db)
- working with C#
while (myReader.Read())
{
if (myReader.IsDBNull(0) == false
cost = myReader.GetDecimal(0);
}
thanks,
Ron
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what u used is the best method one more thing u can do ie cast the result to string now no error will come but its not correct. checking for null values and then assigning is the proper usage
VMSSanthosh
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Hi
We have a MySql database (A) on a Linux machine and a MS Access database (B) on a windows machine. One of the tables in each of these two databases must be synchronised constantly. In A new records are added but no other modifications to records are done. In B records can be added, modified or deleted. At the moment we are trying a C# application that constantly compares the two tables by loading them in a dataset and basically comparing them record by record. I do not think this is very accurate and efficient.
Does anybody have ideas for us? It will really be greatly appreciated.
Kobus
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One thing that comes to mind is the possibility of adding the MySql table to your Access database as an ODBC linked table. You could then, within Access, create a query that outer joins the two tables such that you can identify the records which exist in one but not the other... with a single INSERT query then you can bulk add all those records.
You could do something similar to look for records that have been modified.
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iam generating a crystal report using VB 6.0 SQL server 2000 and crystal report 8.0 the stored procedure iam using is working fine the report is also working when i opened it in crystal report but when i run the application before generating report it shows an error "ERROR DETECTED BY DATABASE DLL" what is it?
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Hi:
How can i can connect to an oracle Server in visual studio 2005?
thanks
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Use the appropriate connection string for your Oracle server?
Your question is vague - are you having a specific problem connecting? are you getting an exception when you connect?
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How can i store a text file at clients machine in asp.net
Amit
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try this..................
Public Function DownLoadMyFile(ByVal sPath As String, ByVal sName As String)
Try
'If chkInOut.Checked = False Then
Dim pstrFilePath As String
pstrFilePath = sPath
If IO.File.Exists(pstrFilePath) Then
Dim myFileInfo As IO.FileInfo
Dim StartPos As Long = 0, FileSize As Long, EndPos As Long
myFileInfo = New IO.FileInfo(pstrFilePath)
FileSize = myFileInfo.Length
EndPos = FileSize
HttpContext.Current.Response.Clear()
HttpContext.Current.Response.ClearHeaders()
HttpContext.Current.Response.ClearContent()
Dim Range As String = HttpContext.Current.Request.Headers("Range")
If Not ((Range Is Nothing) Or (Range = "")) Then
Dim StartEnd As Array = Range.Substring(Range.LastIndexOf("=") + 1).Split("-")
If Not StartEnd(0) = "" Then
StartPos = CType(StartEnd(0), Long)
End If
If StartEnd.GetUpperBound(0) >= 1 And Not StartEnd(1) = "" Then
EndPos = CType(StartEnd(1), Long)
Else
EndPos = FileSize - StartPos
End If
If EndPos > FileSize Then
EndPos = FileSize - StartPos
End If
HttpContext.Current.Response.StatusCode = 206
HttpContext.Current.Response.StatusDescription = "Partial Content"
HttpContext.Current.Response.AppendHeader("Content-Range", "bytes " & StartPos & "-" & EndPos & "/" & FileSize)
End If
HttpContext.Current.Response.AppendHeader("Content-disposition", "attachment; filename=" & sName)
HttpContext.Current.Response.WriteFile(Server.HtmlEncode(pstrFilePath), StartPos, EndPos)
HttpContext.Current.Response.End()
End If
Catch ex As OleDb.OleDbException
Throw
Catch ex As Exception
Throw
End Try
End Function
VMSSanthosh
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For clarification, your code doesn't have direct access to the clients machine. You have to send the file in something that the client would have to OK the download of and pick the spot to save it.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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hi
my friend has installed sql server2000 with windows authentication. now he is finding problem in doing connectivity with it.what to be do.Is he has have to reinstalled it or is there some other method to do the connectivity.well do reply soon.
the error is something like "Illegal sql server authentication". thanks in advance.
nauty
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nauty wrote: now he is finding problem in doing connectivity with it
Can you explain detail about the problem or the description of the message box?
Let do this case but you need to run on windows xp pro or win2k pro:
1. Log on as administrator mode.
2. Install sql server 2000.
3. Install MSDE 2000. MSDE could obtain from Microsoft download center.[^]
4. Open your sql server 2000 via Enterprise manager shortcut command in Microsoft sql server program folder.
5. Check the connection string.[^]
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Roath Kanel wrote: 3. Install MSDE 2000. MSDE could obtain from Microsoft download center.[^]
WHAT???? Why? SQL Server is already installed!
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I used to install sql server 2000 on windows xp pro. Whether sql server is running but i could not access to database. I also could not find server registration. But after i install MSDE from office xp pro CDROM. Then i could be able to access to database.
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Hmmm... I had no problem at all. Limited number of connections due to XP's licensing limits, but it works fine, without using MSDE.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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