SQL Server :: How To Check To See If Record Exists Befor SQL Insert
Oct 13, 2010I would like to check and see if a record exists before doing an insert. Here is the code I have tried:
[Code]....
Similar Messages:
MVC :: Check If Record Exists Before Insert In 2.0 Using Ajax
Jan 11, 2011I want to check if the record is already exists before insert using Ajax ActionLink in Create View. I am getting error 'Object reference not set to an instance of an object.' Here is a code in View :
<div class="editor-label">
<%= Html.LabelFor(model => model.PolicyId) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.PolicyId) %>
<%= Html.ValidationMessageFor(model => model.PolicyId) %>
<em>can not be changed later.</em>
//error occurs here
<%= Ajax.ActionLink("Check", "CheckIfExists", "Life", new { PolicyId = Model.PolicyId }, null)%>
</div>
And Controller action :
public JavaScriptResult CheckIfExists(string PolicyId)
{
if (lifeRepository.IsExists(PolicyId))
return JavaScript("alert(' Already Exists');");
else
return JavaScript("alert(' Not Exists');");
}
SQL Server :: How To Check If A Record Exists In VWD?
Dec 21, 2010I am very new to this and have watched a lot of the videos. While trying out VWD2010 and SQL2008 Express, I come across many things, I just don't know how to do. Here is the latest:
I have a Table
UserId - Int - AutoIncrement
FirstName - Var(10)
LastName - Var(10)
I also have an ASP web page that allow the user to enter a first name and last name. It also has a button to submit. What I would like to do is have a Select statement check to see if the name already exists, then send a comment back to the user via a label. If it doesn't exist, then I would like to Insert the info and then again inform the user via label.
SelectCommand="SELECT COUNT (UserId) FROM Users WHERE ((FirstName=@FirstName) and (LastName=@LastName))"
InsertCommand="INSERT INTO User(LastName, FirstName) VALUES (@FirstName, @LastName)"
<InsertParameters>
<asp:ControlParameter ControlID="tbFirstName" Name="FirstName"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="tbLastName" Name="LastName"
PropertyName="Text" Type="String" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="tbFirstName" Name="FirstName"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="tbLastName" Name="LastName"
PropertyName="Text" Type="String" />
</SelectParameters>
On the code behind, I get lost. (Obviously this doesn't work, but I don't know how to go about getting a results back. Protected Sub bSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bSubmit.Click
SqlDataSource1.Select(DataSourceSelectArguments.Empty)
(get a return)
(check return value, if <>0 then
lblResults.Text = "exists!"
else
SqlDataSource1.Insert()
lblResults.Text="added!"
end if)
End Sub
SQL Server :: Check If A Record Exists Before Updating?
Jan 25, 2011Is there any benefit (performance wise) to check if a record exists before updating it or do I just go straight in with an UPDATE WHERE?
View 2 RepliesHow To Check If A Record Exists
Jul 26, 2010I tried to illustrate the problem by providing the following instructions, unfortunately the data was deleted and the example failed. It is now working. I have been working through one of Scott Mitchells ASP.NET Application Tutorials Title "Using TemplateFields in the GridView Control"
The URL is ...
The example demonstrates a temporary field being used in different ways, one of which involves dates in a Calender. If the HireDate in the example is deleted or not available the program fails. Providing the date is a valid date it works fine....
How To Check A SQL Database Table To See If A Record Exists?
May 10, 2010I have a SQL database that creates a record for every document uploaded by the user to the server. I want to check this table before a user uploads a document to ensure they don't upload a file with name that already exists.
I know how to make the connection and make the SqlCommand to query the table for an existing record. But I don't know how to check the record count from the sqlCommand I made.
Does that make sense?
Using myConnectionCheck As New SqlConnection(myConnectionStringCheck)
Dim myCommandCheck As New SqlCommand()
myCommandCheck.Connection = myConnectionCheck
myCommandCheck.CommandText = "SELECT * FROM Req_Docs WHERE Doc_Name =" & DocName
myConnectionCheck.Open()
myCommandCheck.ExecuteNonQuery()
End Using
DataSource Controls :: How To Check If Record Exists
Jan 6, 2010Just have a problem, I want people to join a mailing list, I just have a textbox and button. When a user enter's their email address, the address and time are inserted into a database. However, if the same email is added again I would like for a message to appear saying the record already exists.
Can someone show me how to do this, here is my current code:
[Code]....
How? Insert Record If Record Not Exists
Aug 13, 2010This is my Table Structure..
View 2 RepliesAJAX :: Check Whether A Particular Record Exists In Database Using JQuery
Aug 18, 2015I have a asp:Button and asp:Textbox on Default.aspx page
Code is as below:
<asp:Button ID="Button1" runat="server" Text="Save" Width="80px" CommandName="Update"
OnClientClick="EnableDdlCompany();saveButtonClick();" CommandArgument="Save" OnClick="btnSave_Click"/>
<asp:TextBox ID="txtBarcodeNumber" runat="server" MaxLength="11" Width="230px"
Text='<%# Bind("BarcodeNo") %>' Display="None"
OnTextChanged="TextChanged" AutoPostBack="true"></asp:TextBox>
On button click, I want to call a javascript code to check that If the entered BarCode Number in Textbox already exist in Database, then show an alert "Number already exist" else allow user to save and navigate to Default2.aspx
I can able to do the same checking on TextBox OnTextChanged event using c# code, as below:
protected void TextChanged(object sender, EventArgs e) {
TextBox txtbarcode = fvIPRForm.FindControl("txtbarcodenumber") as TextBox;
if (txtbarcode.Text.Length > 0 && txtbarcode.Text.Length < 11) {
string error = "The Barcode Number " + txtbarcode.Text + " is invalid, the barcode length must be 11 character.";
ScriptManager.RegisterStartupScript(this, typeof(string), "Successful", "alert('" + error + "');", true);
[Code] ....
Here, IPRRequest is the class/.dll file name and IsValidBarcodeTest is a function defined in the class file
But same checking I tried using the c# code on button's OnClick="btnSave_Click" event, but dont know why this event is not firing, I guess due to CommandArgument on button, but I am not sure.
That's why I want to achieve it using Javascript.
Web Forms :: Check If Record Exists In Table And Prompt User
May 27, 2010Using C#.NET and VWD 2008 Express
I'm looking for a hand with:
When inserting, i would like to check if the record exists in the table, then if it doesn't, insert it, else either redirecting to a different page, or showing a message box saying "Record already exists" ...
Data Controls :: Check (Validate) If Record Exists In GridView When Adding New Row?
May 7, 2015I would like to check if a particular value already exist in the database Gidview row. If the value already exist, tell the user that he has already entered the record and don't save. otherwise save the record. In my case I want to check the "Random number".
<asp:TextBox ID="txtRandomNumber" runat="server"></asp:TextBox>
Maybe it could be done with a foreach loop statement.
Web Forms :: Bulk Insert Records And Update Existing Rows If Record Exists Exception
May 7, 2015When processing many records starting from 10,000 System.OutOfMemoryExceptio get the error. There would be some way to handle this type of memory error ?.
ASP.Net SqlBulkCopy- Bulk Insert records and Update existing rows if record exists Exception: Out of Memory Exception C# and VB.Net
Web Forms :: CSV File - Bulk Insert Records And Update Existing Rows If Record Exists
May 7, 2015I need a way of doing the following:
I receive data in .csv format. I have a some records on a table, so what I need to do is to check if the data I receive exist on the table of records that I need to match against.
If the record exist, then an email/sms should be sent to notify me that the records has been matched and then that record should be flaged that it has been tested so that I don't test it again as the incoming data are saved.
How To Check If A File Exists On An Ftp Server
Jan 4, 2010I'd like to use a simple switch to display one image or another but I need a way to find out if the image exists.
If FILEEXISTS("pathtojpg") Then
'Display jpg
Else
'Display "no_image_yet.jpg"
End If
SQL Server :: Check If Value Exists Before Inserting?
Oct 27, 2010I want to be able to check if a value exists before inserting a new record in the table. I am taking a nvchar value from a textbox and want to compare it to existing values in the table. My codebehind is:
[Code]....
It is also important to filter down by CompanyID which is held in a Profile table. So the value can be equal in records where the CompanyID does not equal the loggedin Profile.CompanyID. So a user with a CompanyID of 2 can have a value in the table for SubType as "laptop" but a user with CompanyID of 3 can still enter "laptop" if there is no match for "laptop" and companyId = 3.
Web Forms :: Check If An Insert Of A New Record Into An SQL Table Is Happening Successfully?
Nov 28, 2010Trying to check if an insert of a new record into an SQL table is happening successfully. I can see that the insert is occuring OK but am not getting the verification to happen.
I'm a little new to C#, I'm thinking it may be in the syntax I'm using in my method in the .cs file line 45. Can't seem to fix it right though.
[Code]....
[Code]....
Web Forms :: Show Error When Same Record Exists In SQL Server Database
Sep 24, 2012I have one text box in my page and 1 button
users type some number in this TB
I want when users enter their number in text box and click on button to insert it to database
it checked if in database was that number it show message that "this number is in database please type other number"
how i can do it?
SQL Server :: Check If UserName Exists Or Not In The Shortest Possible Time?
Dec 4, 2010I am developing a website in ASP.NET with SQL SERVER as backend.
I want to find the best(FASTEST) way by which I can find if USERNAME exists or not.
My application is taking a bit of time finding that out. Do I need to look into my TABLE structure,indexes.
Is there any replacement for the query
Select username from usermaster where username=@Username
SQL Server :: Insert 0 Value For Months When No Data Exists?
Dec 1, 2010Banging my head with this one...
I have a SQL query that pulls data for charting based on a per month basis. The month range is dynamic and selected from the front end. My issue is when no data for a month within the month range is present, that month is skipped. Is there a way/method to have the query give a 0 value for the columns when no data for that month exists? Below is my current query
[Code]....
SQL Server :: Check If Record Already Exist In Database
Jul 13, 2010Before a subscription to a newsletter and the record will be inserted, i'd like to check if the record already exist ina sql-server database. This what i've got as dusfar
adres = TxtEmail.Text
DBConn.Open()
If adres <> "" Then
Try
DBCmd = New SqlCommand("SELECT COUNT(*) FROM TBL_Subscribers WHERE email = @adres)", DBConn)
''Add
DBCmd.Parameters.Add("@Email", SqlDbType.NVarChar).Value = adres
DBCmd.ExecuteScalar()
DBAdap = New SqlDataAdapter("SELECT * FROM TBL_Subscribers ORDER BY ActivateDate", DBConn)
DBAdap.Fill(DS)
Catch exp As Exception
Response.Write(exp)
End Try
End if
DataSource Controls :: Insert A Record In A Remote Server From Local Server?
May 20, 2010I need to insert a record in table which is in remote server....I am using two connection strings for local and remote....both the servers are in same workgroup only...so am able to connect the both.The problem is am filling data of local table in on dataset1 and remote server table data in another dataset dataset2..Now whil inserting a record local an error occured like "This row already belongs to another table" after googlingI found like this like "Dataset.importrow()" instead of "dataset.add()" method...then there is no errors but the inserted record is not inserting in remote server database...
View 5 RepliesSQL Server :: How To Check (true/false) If Every Single Entry In Table Exists In Other Table
Oct 15, 2010I have 2 tables:
- Salesmen with Pk.SalesmenID
- Appointments with Fk.SalesmenID and busy(bit)
How can I check if every salesmen has at least one appointment
Am I on the right way with statement below, though I got syntax problems
[Code]....
SQL Server :: Check If "username" Value In Form Already Exists In DB?
Aug 12, 2010I have aregistration form where the user enters, among other things, a username. The form must make sure that the username is not already taken before the user submits the info.
Here's my code so far in the .aspx.cs:
[Code]....
I'm not sure how to call this function from the .aspx part... .
[Code]....
SQL Server :: How To Insert A New Record Into A Table
Sep 23, 2010I want to insert a new record into a table. The table has relationships with other secondary tables, For example:
Table: Stores
Table StoreCategories (a store can have many of these)
I want to insert a new store, get its ID and insert some categories in one go.
How do I go about this?
SQL Server :: Insert Large Amount Of Data In Sql Server 2005 Database With Every Time Duplicate Check?
Feb 6, 2011I want to generate 30,000 cards and each card must be duplicate check with database. In my card, there are 2 things. Serial No and CardID. If any card already exists then I generate another card id but with the same serial no.
So how faster way I can generate 30,000 card with duplicate check? Which one I have made application, it takes about 25 minutes to insert.