Insert Datetime, Using ADO.net VB.net

Feb 16, 2008

Hello there,
I got a little code there are inserting a record into my msSQL database..
But i cant insert the datetime, for one reason?

The problem is in line 7 () where i want to insert DateTime.Now
1 Protected Sub SendPmTilAfviste(ByVal modtager As String, ByVal festID As String)
2 ' Connection
3 Dim conn As SqlConnection = New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True")
4 conn.Open()
5
6 ' SQL-kommandoen
7 Dim cmd As SqlCommand = New SqlCommand("INSERT INTO marcisoft_PMsystem(laest,fra,modtager,sendt,overskrift,besked) VALUES('Ny!','webmaster1','" + modtager + "','" + DateTime.Now + "','A headline','text text the id " + festID + "')", conn)
8 cmd.ExecuteNonQuery()
9
10 conn.Close()
11 conn = Nothing
12
13 End Sub

If i using with ' around
It show up with a error, out of range..
And if i dont, it show up with another error, problem near 02
(02 could be the clock or the month, think clock)

Hope someone knows how this is done..

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Hi everyone,I need help in inserting a date time string to sql sever. For example, how do you insert textbox1.text="2006-08-30 09:00:00" into a datatable column names starttime (type datetime) in sql sever? How do I covert the format of this string before I do the insert?Thanks.a123.

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Thank you

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Jan 13, 2004

Hi,

I have very little C# experience and I am in over my head here. This script will insert all data into the data base after I have removed all refference to the date.

I know I have to change the datatype in code, but I have tried everything I can think of.

Any suggestion would be greatly appreciated.

The .aspx.cs file is below:

using System;
using System.Configuration;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.IO;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace News
{
public class AddNews : System.Web.UI.Page
{
protected System.Web.UI.HtmlControls.HtmlInputText txt_news_title;
protected System.Web.UI.WebControls.TextBox txt_news_body;
protected System.Web.UI.HtmlControls.HtmlInputFile txt_news_image;
protected System.Web.UI.WebControls.Button UploadBtn;
protected System.Web.UI.WebControls.Button ResetBtn;
protected System.Web.UI.WebControls.RequiredFieldValidator rfv_news_image;
protected System.Web.UI.WebControls.Label lbl_news_result;

public AddNews() { }

private void Page_Load(object sender, System.EventArgs e)
{}

public void UploadBtn_Click(object sender, System.EventArgs e)
{
if (Page.IsValid) //save the image
{

//news_title
string newsTitle = txt_news_title.Value;

//news_body
string newsBody = txt_news_body.Text;

//news_date
DateTime dtCurrTime = DateTime.Today;
string d = dtCurrTime.ToString();

//news_img & news_imgcontenttype
Stream imgStream = txt_news_image.PostedFile.InputStream;
int imgLen = txt_news_image.PostedFile.ContentLength;
string imgContentType = txt_news_image.PostedFile.ContentType;
byte[] imgBinaryData = new byte[imgLen];
int n = imgStream.Read(imgBinaryData,0,imgLen);

int RowsAffected = SaveToDB( newsTitle,newsBody,d,imgBinaryData,imgContentType);
if ( RowsAffected>0 )
{
//Response.Write(" The Image was saved");
lbl_news_result.Text = "Record was added successfully!";
txt_news_title.Value = "";
txt_news_body.Text = "";
}
else
{
//Response.Write(" An error occurred uploading the image");
lbl_news_result.Text = "Record was NOT added!";
}
}
}

public void Reset_Click(object sender, System.EventArgs e)
{
txt_news_title.Value = "";
txt_news_body.Text = "";
lbl_news_result.Text = "";

}

private int SaveToDB(string newsTitle, string newsBody, string d, byte[] imgbin, string imgcontenttype)
{
//use the web.config to store the connection string
SqlConnection connection = new SqlConnection(ConfigurationSettings.AppSettings["connString"]);

SqlCommand command = new SqlCommand( "INSERT INTO Cover (cover_title,cover_body,cover_date,cover_image,cover_imgcontenttype) VALUES ( @news_title,@news_body,@news_date,@img_data,@img_contenttype )", connection );

SqlParameter param0 = new SqlParameter( "@news_title", SqlDbType.VarChar,50 );
param0.Value = newsTitle;
command.Parameters.Add( param0 );

SqlParameter param1 = new SqlParameter( "@news_body", SqlDbType.VarChar,5000 );
param1.Value = newsBody;
command.Parameters.Add( param1 );

SqlParameter param2 = new SqlParameter( "@news_date", SqlDbType.VarChar,8 );
param2.Value = d;
command.Parameters.Add( param2 );

SqlParameter param3 = new SqlParameter( "@img_data", SqlDbType.Image );
param3.Value = imgbin;
command.Parameters.Add( param3 );

SqlParameter param4 = new SqlParameter( "@img_contenttype", SqlDbType.VarChar,50 );
param4.Value = imgcontenttype;
command.Parameters.Add( param4 );

connection.Open();

int numRowsAffected = command.ExecuteNonQuery();

connection.Close();

return numRowsAffected;
}
}
}

Thanks!

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I'm still having a problem inserting date fields into sql server.

I don't understand how it accepts datetime.

I have all of my date columns defined with datetime format and all of the dates are coming out as the default of: 01/01/1900.

I tried to insert the data as string and sql server doesn't understand that format.
Here's some of the code:

We're going from flat VSAM files to an sql server database.
This is one huge sql insert statement with about 75 fields being loaded into a table so I'll only post one the date fields.
Here's where I call the String functions from:

First, I have to uncomp the field from binary to String:

ls_sdate = Right$(CompToStr(bufMast.Name_Chg_Date), 8)

And then I send this string to my Convert_Date function:

lsDet1 = Trim$(lsDet1) & Convert_Date(ls_sdate) & ","

(lsDet1 is a concatenated String of the SQL Values to be inserted)

And Here are the two functions:
The date field is coming in like: 1991112 where if the first character is a 1, the year is 1900 and if the first character is a 0, the year is 2000.
I get correct fields in my message box like 1996/12/31 but then I don't know what sql server does to it in datetime format.
When I check the database table it looks like: 01/12/1900

Maybe there is something wrong with my Convert_Date function;

__________________________________________________ ____________

Public Function CompToStr(aCompdata() As Byte) As String
'This is one way in which you can unpack a comp field. As I mentioned,
'you might be better off designing a flexible class to do the
'conversions. At minimum, this function should be expanded to
'accept a data picture as a param (decimal placement and so on).

Dim lsRtnStr As String
Dim lsHoldStr As String
Dim llCount As Long

For llCount = 1 To (UBound(aCompdata) + 1) Step 1 'loop thru the passed array.
lsHoldStr = Hex(aCompdata(llCount - 1)) 'Convert the byte to a Hex string.
If Len(Trim$(lsHoldStr)) = 1 Then 'if the highorder nibble was 0
lsHoldStr = "0" & Trim$(lsHoldStr) 'pad it with a leading zero.
End If
lsRtnStr = lsRtnStr & lsHoldStr 'Concat it to the return string.
lsHoldStr = "" 'clear the var for the next pass.
Next
lsRtnStr = Replace$(lsRtnStr, "C", " ") 'Positive sign replacement.
lsRtnStr = Replace$(lsRtnStr, "D", "-") 'Negative sign replacement.
lsRtnStr = Replace$(lsRtnStr, "F", " ") 'Unsigned - implicit positive.
lsRtnStr = Trim$(lsRtnStr)

llCount = 0
llCount = InStr(1, lsRtnStr, "-")

If llCount > 0 Then
lsRtnStr = Right$(lsRtnStr, 1) & Left$(lsRtnStr, (Len(lsRtnStr) - 1))
End If
CompToStr = lsRtnStr 'Return the hex string.
End Function
__________________________________________________ ___________________

Public Function Convert_Date(ByRef ls_sdate As String) As String

'incoming date
Dim ls_scent
, ls_smonth, ls_sday, ls_syear As String

ls_scent = Left(ls_sdate, 1)
ls_syear = Mid(ls_sdate, 2, 2)
ls_smonth = Mid(ls_sdate, 4, 2)
ls_sday = Right(ls_sdate, 2)

If (ls_sday = "00") Then
ls_sdate = "0000"
ElseIf (ls_scent = 0) Then
'ls_sdate = ls_smonth & "/" & ls_sday & "/" & "19" & ls_syear
ls_sdate = "19" & ls_syear & "/" & ls_smonth & "/" & ls_sday
ElseIf (ls_scent = 1) Then
'ls_sdate = ls_smonth & "/" & ls_sday & "/" & "20" & ls_syear
ls_sdate = "20" & ls_syear & "/" & ls_smonth & "/" & ls_sday
End If

Convert_Date = ls_sdate

End Function
__________________________________________________ ____________

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----------------------------------------------------------------
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for insert:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Code Block
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--------------------------------------------------------------------------------------------------
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-----------------------
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Option 1: Presently implemented:
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Option 2:
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Option 3:
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Howto Insert A Null DateTime Into A Sql Server 2005 Database

Apr 2, 2008

I'm importing data form an Excel file to a Sql Server Database. Some of the data imported represents time as a double type so i convert the times into DateTime to be inserted into the database. The time values that aren't available in the Excel file are 0.. so what i want to do is insert null into the database for all the values that are 0 in the excel file... How do i do that based on this code i have so far:protected void ButtonImport_Click(object sender, EventArgs e){PanelUpload.Visible = false;PanelView.Visible = false;PanelImport.Visible = true;LabelImport.Text = "";OleDbCommand objCommand = new OleDbCommand();objCommand = ExcelConnection(); OleDbDataReader reader;reader = objCommand.ExecuteReader(); while (reader.Read()){DateTime? in_1 = null;DateTime? out_1 = null;DateTime? in_2 = null;DateTime? out_2 = null; int emp_id = Convert.ToInt32(reader["emp_id"]);DateTime date_entry = Convert.ToDateTime(reader["date_entry"]);if (Convert.ToDouble(reader["in_1"]) != 0)in_1 = ConvertDoubleToDateTime((double)reader["in_1"]);if (Convert.ToDouble(reader["out_1"]) != 0)out_1 = ConvertDoubleToDateTime((double)reader["out_1"]);if (Convert.ToDouble(reader["in_2"]) != 0)in_2 = ConvertDoubleToDateTime((double)reader["in_2"]);if (Convert.ToDouble(reader["out_2"]) != 0)out_2 = ConvertDoubleToDateTime((double)reader["out_2"]); ImportIntoAttendance(emp_id, date_entry, in_1, out_1, in_2, out_2);} reader.Close();}protected void ImportIntoAttendance(int emp_id, DateTime date_entry, DateTime? in_1, DateTime? out_1, DateTime? in_2, DateTime? out_2){ SqlDataSource AttendanceDataSource = new SqlDataSource();AttendanceDataSource.ConnectionString = ConfigurationManager.ConnectionStrings["SalariesConnectionString1"].ToString();AttendanceDataSource.InsertCommandType = SqlDataSourceCommandType.Text;AttendanceDataSource.InsertCommand = "INSERT INTO Attendance (emp_id, date_entry, in_1, out_1, in_2, out_2) " +"VALUES ('" + emp_id + "', '" + date_entry + "', '" + in_1 + "', '" + out_1 + "', " +"'" + in_2 + "', '" + out_2 + "')"; int rowsAffected = 0;try{rowsAffected = AttendanceDataSource.Insert();}catch(Exception ex){LabelImport.Text += "" + ex + " ";} }private DateTime ConvertDoubleToDateTime(double dbTime){string[] SplitTime = dbTime.ToString().Split('.');string hours = SplitTime[0];string minutes = String.Empty;string time = String.Empty; if (dbTime.ToString().IndexOf('.') != -1){if (SplitTime[1].Length >= 1){if (SplitTime[1].Length == 1)minutes = Convert.ToString(Convert.ToDouble(SplitTime[1]) * 10);else if (SplitTime[1].Length > 1)minutes = SplitTime[1];}}elseminutes = "00";time = hours + ":" + minutes;return Convert.ToDateTime(time);}

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DateTime.Now, An Allowed Null Field, And My Insert Function From My Dataset

Jun 6, 2008

I have a table adapter for one of my SQL2005 tables, and in two different fields I accept a date time. Now 99% of the times, new rows to this table will be filled out using DateTIme.Now(), as a Time Stamp is what I'm going for.

Here is the line of code in question...cops_current_data_adapter.Insert(ProductOrder, Convert.ToInt16(Session["StationId"].ToString()),
PartNumber, DateTime.Now, DateTime.Now, Convert.ToInt16(qty), 0);
The second DateTime.Now is the one that can be null, and it's throwing a formatting error everytime I try and drop it in there. It's a FormatException, and there's not much more to the example except unhelpful tips like be careful when conveting a string to a dateTime, which I'm not doing. Needless to say for the code to compile, and then throw a Format error at runtime is a bit frustraiting.
Any suggestions would be most appreciated

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Jul 29, 2004

Is there a way to adjust a date and time depending on the users locale before inserting into the database?

Users login in and their country of residence is stored in the database on signup. My server is in the US and I want to reset part of the users db record when it's the end of the day in their country so I need to enter the date and time into the db plus or minus the time difference, is there a function written to do this already or would i need to write my own?

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Millisecond Values Missing When Inserting Datetime Into Datetime Column Of Sql Server

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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