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;
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?
How to replace DateTime field with null value in SQL 2005 server I create a stored procedure aa, It works well, but sometimes I hope to replace CreateDate field with null value,I don't know how to doIt seems that datetime type is not null value create aa @CreateDate DatetimeAsUpdate cw set CreateDate=@CreateDate
Does anyone have a simple way of inserting a NULL value into sql 2000 datetime. I'm using vb.net. All I want is if the user does not enter a date in a textbox to to send a NULL value to the DB instead of having the db enter the default value as 1/1/1900. Thank you
Hi I'm using DetailView and I have a text box which show the date. I have formated the date as shortDate {0:d} format. I want to insert/update null if that text box is empty. I have tried putting null value in my Update statement in sqlDataSource. And I'm getting error saying can't convert varchar to smalldatetime. If I don't set null value as above, some large date (01/01/2033) has been inserted in my database. Can anyone help me? Moe
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
I have application create by MsAccess and connect with Sql Server 2000 in x86
and now we transfer system to HP rx3600 Intel Itanium - Install Windows 2003 Server Enterprise (for Itanium) - Install Sql Server 2005 Standard Edition (IA64)
and now we try to create ODBC connection from client for testing.
But we can't not done it.
Anybody can tell us how to create connection to sqlserver 2005 (ia64)
hi guys. i'm using vb.net with vs 2003 and MSSQL Managment Studio Express as my database server. i want to insert null value into database, so i use System.DBNull.Value but it doesn't show NULL, but a empty field. I tried System.DBNull.Value.ToString, it gives me same result. what can i do to have NULL in that field? thanks for any advise, i would appreciate it very much.
the column type of stime and etime in Dabase both are datetime -------------------------------------------------------------------------------------------------- public DateTime loginTime { get { //got user enter page's time return DateTime.Now; } }
//record user's using time when user click exit button protected void Button1_Click(object sender, EventArgs e) { int Member_No = Int32.Parse(cls_login2.GetCurrent_login_Member_no(this.Page)); int Lesson_No = Int32.Parse(Lesson_no); int Prestep = 1; string RemoteIp = Request.ServerVariables["REMOTE_ADDR"].ToString(); string sqlConn = "Insert into pro_Study_log (Member_no,Lesson_no,Study_log_stepid,Study_log_stime,Study_log_etime,Study_log_ip) "; sqlConn += "values(" + Member_No + "," + Lesson_No + "," + Prestep + "," + loginTime + ", getdate(), '" + RemoteIp + "')"; SqlConnection connLog = new SqlConnection(StrConn); SqlCommand cmdLog = new SqlCommand(sqlConn, connLog); cmdLog.CommandType = CommandType.Text; connLog.Open(); cmdLog.ExecuteNonQuery(); connLog.Close(); ----------------------- and then I got error message on column Study_log_stime I also trid set the dateimt tostring , still doesn't work..
I don't know where I did wrong... pleae help many thanks
If myDateTimeColumn contains a <NULL> value. How do you handle that when reading into a DateTime object in your code?DateTime myDate = Convert.ToDateTime(dr["myDateTimeColumn"]);Does not work, it throws: System.InvalidCastException: Object cannot be cast from DBNull to other types. I am curious as to what others are doing to handle this?
I have a function that updates a table in sql server If a field is left blank I want the database field set to Null. I use:sqlCmd.Parameter.Add("@somefield, someintvalue) to pass all my values to the database. if someintvalue is null I want to set @somefield to dbnull How can I do this? I get errors if I submit a null integer when there is a foreign key constraint. What is the best way to handle this? should I just make all parameters objects? so that I can set them to DBNull.Value? Also on a side note, when you are populating fields from a datatable, is there a better way to set the values (i.e. of a textbox) than cheking for DBNull before assigning?
INSERT INTO #tmpTable (eventName) values ('Another One')
DROP TABLE #tmpTable
this causes a null insert issue
(0 row(s) affected)
Msg 515, Level 16, State 2, Line 7
Cannot insert the value NULL into column 'statuspid', table 'tempdb.dbo.#tmpTable___________________________________________________________________________________________________________000000000130'; column does not allow nulls. INSERT fails.
The statement has been terminated.
So how do I allow the null, as the not null is coming from the ES table. But I want to allow the insert to happen without having to create the table first, this code works in SQL 2000 but fails in 2005, inserting all fileds into the insert also has it's own issues as some of the fields are delibertly left blank so in some circumstances the data returned to a grid displays correctly.
This method has been used in quite a lot of stored procedures and will be a nightmare to correct if each has to be edited.
One example of the use of is to return a dataset and then add a row at the bottom which is a sum of all the rows.
Hi, Good morning to all.My table: User_Group_Map(UserID UNIQUEIDENTIFIER,GroupID UNIQUEIDENTIFIER) Now, I want to write one stored procedure that can insert rows into the above table, but more number of rows at-once. Means, the program should allow multiple insertions without the need to call the stored procedure from front-end more number of times. Can anyone please help me on this... Thanks in advance...Ashok kumar.
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;
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 );
In my C# code I have a Class property that takes the value DateTime.Min upon initialisation, but when I try to insert this into the database column (yes, it is DateTime data type :)) I get an 'Unexpected Error' from SQL Server Mobile.
SampleID  Rep_Number  Product  Protein  Fat  Solids
In the flat file SampleID and Product are populated in the first row only, rest of the rows only have values for Rep_Number, Protein, Fat, Solids.
SampleID and Product are blank for the rest of the rows. So my task is to fill those blank rows with the first row that has the sampleID and Product and load into the table.
I am unable to insert record in a field which is null and unique. It does not accept NULL value again in the same field. It shows error UNIQUE KEY VIOLATION. Please help
I'm trying to list all database locations with SQL command, but getting lost here :(
So, anyone any idea how to get databasefile locations from server? All I need is like: 'C:Program FilesMicrosoft SQL ServerMSSQLDatamaster.mdf' and others.
I am getting this error: "Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails." -- But my value is not null. I did a response.write on it and it show the value. Of course, it would be nice if I could do a breakpoint but that doesn't seem to be working. I'll attach a couple of images below of my code, the error, and the breakpoint error.
Server Error in '/' Application.
Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails.Source Error:
Line 89: sContact.Phone = sPhone.Text.Trim Line 90: sContact.Email = sEmail.Text.Trim Line 91: sContact.Save() Line 92: Line 93: Dim bContact As Contact = New Contact()Source File: F:InetpubwwwrootOutman KnifeCheckout.aspx.vb Line: 91 Stack Trace:
I am update/inserting records threw a web form in vb.net. I need to insert 'NULL' into my microsoft sql server database. I am not talking about the below line of code where website is the name of my paramater. If i do that it will just place a blank into that field in the database. If i dont enter anything into that textbox I want it to to say NULL in that field. So if I go into the actual table in the SQL Server Management Studio and look at the website field of the recored I just added or updated and did not type anything into the web site textbox it needs to say NULL. I also tried the second line of code but that places a single quote in front and behind NULL. So the field will have the value 'NULL'. website.value = txtwebsite.text.tostirng if txtwebsite.text ="" then website.value ="NULL" end if The reason why I need the NULL there is because I bind the website filed to a hyperlink template in a gridview. The actual text of the hyperlink is bound to PAYER which is a name of a insurance payer but the navigateto is bound to the website field. If i do not enter any data into the website field and it stays as NULL, then when my gridview is loaded, payers that dont have a website will not be underlined and user wont have the option to click on them since there is no value for the navigateto. But if i use my form to update/add a payer and leave the website textbox blank in puts a blank into that field in my database and when it loads that new row into the gridview the PAYER is underlined and u can click on it but it will just take u to the web site is unavailable page. So is there anyway to actaull have NULL placed into a filed and not just blank space
Hi, I have a report with datetime parameter which is required to be optional (there should be an option not to select this parameter which would cause in not narrowing result of this report by this parameter).
I used datetime parameter (to have the calendar control for selecting date) for which I enabled NULL value. The result is that next to this parameter there is a checkbox "NULL" which allows to send NULL as a value of this parameter. Everything is fine except for the prompt: "NULL"... Is there a way to change it? I would see there something like "Empty" or "Not selected", which would be understandable for users of the report.
Or is there any other way to send an empty date as a value of this parameter? (Setting some unusual value like 1/1/1900 for empty date is not sufficient as the empty value shouldn't appear in the parameter control).
I have a problem while trying to set "NULL" value to my datetime parameters.
I have two datetime parameters (AllowNull=True) on my report. (BeginDate and EndDate)
it works fine in preview mode in reporting design.
The problem occurs, if I try to set an emtpy value to these parameters in my asp.net application.
The code looks like;
Dim repParams(1) As ReportParameter
repParams(0) = New ReportParameter("BeginDate", String.Empty)
repParams(1) = New ReportParameter("EndDate", String.Empty)
-----
ReportParameter method requires String parameters. If user set any datetime value, I am sending "String.Empty" value to my paramaters in order to set them as NULL. But I am getting "rsReportParameterTypeMismatch Error."
How Can I set NULL value to these parameters from asp.net application?
I have a datetime field in a database which I am programmatically inserting values into. The field can be null or not null. However, I am having problems inserting NULL as part of my SQLCommand. The value is pulled from a text box (linked to a calendar extender) and when I select a value it is being inserted fine. If I just leave the box blank though, I want the field to be set to NULL. I have tried adding in ,DBNULL.Value, as part of my VALUES(…) string, but this throws an exception. I Have tried just inserting ‘’ but that also throws an exception (“The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value�), so I don’t know how I can insert this value when the field is blank? Can anyone shed some light please? Thanks
