Databases :: Mysql - Data Instert/update / Insert New Data It Adds Null Data For All Fields In The Table?
Oct 28, 2010
I developed a web site more then a year ago with .net2.0/c#/mssql 2005. it works fine but i was asked to replace mssql with mysql.
I wrote a class to complete data access works (unfortunately, I didnt use nhibernate or other data access tools :((
I edited the class to use System.Data.Odbc objects rather than System.Data.SqlClient.
It works fine in selecting data but not manipulating data. when i try to insert new data it adds null data for all fields in the table.
in debug mode, i noticed that it might be caused by OdbcParameter but not sure.
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Apr 12, 2010
I have a typical gridview/formview master control setup. When I try to update or insert I don't get any errors but it also doesn't work. When I try to insert data all I get are null values and when I update, none of the values are updated. The formview looks like its working, but just doesn't. The primary key is an identity and it auto-increments by one.
[Code]....
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Sep 3, 2010
Actually i need to transfer data from one table to another table in mysql with codition of Time.for example i need to transfer data at 10.00am when user login at 10.00am it must be insert into another data table.. if anybody know time control
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Sep 6, 2010
i done one web application in this application i need to transfer the data from one table to another automatically when the time is 10.00PM. i need to write this function sepearte time function not in page load function.the user select any of page the data should be transfer from one to another without page load only using time control function..
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May 4, 2010
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Jun 1, 2010
I have a requirement that I need to read an excel sheet using asp.net/C# and insert all the records into mysql table.The excel sheet consists of around 2000 rows and 50 columns. Currently,upon reading the excel records ,I am inserting the records one by one using a prepare statement into mysql table.But its taking around 70 secs to do so because of the huge data.
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May 11, 2010
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Apr 13, 2010
I have a Gridview showing the data on one of my tables, and when I try to edit the data in one of the columns after I click update, rather than updating the record with the new value I typed in, the rows become null as in, everything in the row I just edited disappears. This inmediatly makes my application crash because one of the fields in my table (IssueDescription) doesn't allows null values.
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[code]...
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Jan 29, 2011
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Using vb.net/asp.net 2005.
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[Code]....
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[Code]....
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Sep 23, 2010
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Oct 20, 2010
This is the sqlDateTime overflow problem again. Background. As I'm sure you know dates must be between 1/1/1753 and 12/31/2999. If you have an empty date field, it throws and exception. So I created a function (below) that solve the problem when attempting to update or insert a record with a date field. Works great.
Public Shared Function MakeDateField(ByVal pasDate As String) As Nullable(Of DateTime)
If IsDate(pasDate) Then
Try
If pasDate <= System.DateTime.MinValue Then
Return Nothing
Else
Return CType(pasDate, DateTime)
End If
Catch ex As NullReferenceException
Return Nothing
End Try
Else
Return Nothing
End If
End Function
So I thought about using a time field. I have the field, have the validator in place and then attempted to test the page. It resulted in my least favorite error message "sqlDateTime overflow".
I can think of several workarounds like adding a date or a fixed date to the time field, or converting it to a string. Each of these is problematic.
IS THERE A BETTER WAY TO UPDATE/INSERT TIME FIELDS.
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Sep 16, 2010
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Aug 30, 2013
1)table student
studentno varchar(50)
hobby1 varchar(40);
hobby2 varchar(40);
hobby3 varchar(40);
2)if record in data database such that
hobby1 hobby2 hobby3 in this maximum is one must be chose
like
here studentno hobby1 hobby2 hobby3
1 cricket null null
2 null hockey null
3 null null tennis
if i want to write function in mysql if i pass the studentno
i want to get the hobby of respective student
like select functionname(1)
your hobby is cricket
like select functionname(2)
your hobby is hockey
ike select functionname(3)
your hobby is tennis
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Apr 15, 2010
Is there any way to import XLS data into MySQL database which is have similar table structure..?
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<?xml version="1.0"?>
<configuration>
<connectionStrings>
</connectionStrings>
<system.web>
<compilation>
<assemblies>
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Aug 27, 2012
<table style="width:100%;" runat ="server" id="myform">
<tr> <td class="style1">
<asp:RadioButton ID="RadioButton1" runat="server" AutoPostBack="true"
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</td> <td class="style2">
<asp:TextBox ID="Txtadd5" runat="server"></asp:TextBox>
<asp:Label ID="Label5" runat="server" Text="to"></asp:Label>
[Code] ....
I have a form and its code as above there are many columns and I want to do one thing that when user enter all the values in the form and upon pressing submit button all the data were show on the form..
E.g. here is the structure. I have the following fields in my form
Start Date................
End Date.................
Promo Type................
Service..........................
Submit Button
When I press submit button all of the data which i enter above was shown below.
Any method for this I don't want to use grid over here...
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Apr 22, 2010
i dont know how to set the field to blank field instead of null
if i insert record, and don't input some field, then the field will display null
how to remove null value by default in mysql db.
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I have a detailsview in insert mode. I want to prompt the user to enter data in all fields, if left empty. Could someone please find a few minutes to show me how to do it?
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Sep 17, 2010
is dere any way that i can store or insert images into the mysql database and retrieve them successfully just like textual data.
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