I need to somehow test if a table exists in a database. If it does not then I need to create the table. How can I test for existence of a table using SQL? It seems like some type of SQL logic is needed?
View 2 Replieshow to check if the particular values in a table exists?
if it is not existing i need to insert that values in the table?
I need to check whether table named 'CSE' is existing in database or not. if it exists, i want to drop the table 'CSE'.
View 1 RepliesTest to know if a file exists already or not using DetailsView with c#?
DetailsView :
DetailsView source :
<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Insertclient.aspx.cs" Inherits="Insertclient" Title="Insert client" %>
<%@ MasterType VirtualPath="~/MasterPage.master" %>
[Code]....
before inserting a new Cod-client i want to know first if the Cod_client exists already or not and where to insert that cod in my application ,
I 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
I have a table in my aspnet database. I added a bottom row "Not Selected", if the user doesn't select from a databound drop down list. This row is at the bottom, because I just added it to the table data. Is there any way to move this one row to the top of the table manually? There is not "cut" and "paste" when I select the whole row.
View 3 RepliesI've sucefully runned it in my local server (Windows Server 2003 Standart) but after tried several times upload it to my hosting, it never works. The web hosting company told first that they didn't had System.Web.Routing.dll installed (but they said that they've .NET 3.5 installed..), then i've copied the dll to Bin folder and again with no sucess. Can someone give me a very basic example of and website using System.Web.Routing.dll so i can do the "final" test on webhost before i go to the company because they say that they have 3.5 installed but i'm starting to see that they didn't have? If possible, is there another way to test if this dll is installed in web hosting? (test all .dll running for example)
View 1 Replieshow do I get the Row count from a table CustomerDatabaseTables in the Database.What I want to do is if the Row Count is greater than 5 then I want to disable a buttonCREATE NEW USER. But I am not able to figure out a way for doing it.Can anyone post the code for the same in VB.
View 2 RepliesI have a table with several columns i created,
How can i add a new column and specify its data type now? i using sql server and Gridview.
I tried to add one using GridView but it shows me columns called edit delete something is not like my bound fields i created early.
I need to select a field value from a database table. If the value read is '1' then I need a 'Y' to display as output in the select statement. I haven't figured out how to do this yet and queries I tried that did not work.
select IsIata from Table_1 CASE WHEN (IsIata = '1') THEN 'Y'
select IsIata CASE WHEN (IsIata = '1') THEN 'Y' from Table_1
I get an error when I try to update a row in an SQL database table with a string of fewer characters than were previously stored. I attempted to correct this problem by using the "PadRight" function in my C# webpage event handler to fill in the remaining characters with spaces, but I don't seem to be able to make that work. So, what do I do when I want to store fewer characters in a table row that has more characters previously stored in it?
View 2 Replieshow can I insert a list (of int) to table?
View 1 RepliesI have this image upload code...that works....but I need a code to get the Id of the image that i just uploaded..
Protected Sub ImageButton_AddImage_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton_AddImage.Click
Dim IntLength As Integer
Dim ArrContent As Byte()
[Code]....
I have a web form that displays the results from a table. How can I compare the table between dates and display the differences of the table?
e.g. today 790 items, and two days ago there were 745 items and this is what is the difference;
xxx
yyy
ggg
hhh
aaa
etc.
where can i find the tableadapeter to add data to my database table? and is that the best way or there a easier way... i have a csv file that i would like to add to my data table but i don't know how?
View 1 RepliesI am trying to store data from an XML file to a table in my database, but I keep getting the same error.
This is my code from the cs file:
[Code]....
And this is my error:
Violation of PRIMARY KEY constraint 'PK_Areas'. Cannot insert duplicate key in object 'dbo.Areas'.
The statement has been terminated.
In my XML file I have both existing rows and new rows for the database table. I'm guessing I have to do something to sort out the the rows that are not already in the database, but so far I have been unsuccessful to figure this out.
I have a dBA who designed a table with a gender field, which the value can only be M or F. He designed the gender field as binary(1).
View 6 RepliesIm Inserting data into database table with the help of datasets but its not inserting to table and even its not showing errors.
this is my code....
[code]....
My code is not updating the sql database. I am definately passing the correct information in to this function, and it runs without errors. If I exec the procedure with the passed in data, it works great. Can someone tell me what is missing?
public DataTable UpdateEmailList(int listId, string connectionString, DataTable EmailList)
{
//DataTable dt = new DataTable();
SqlConnection conn = new SqlConnection(connectionString);
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(null, conn);
SqlCommand cmd = null;
//add
cmd = new SqlCommand("dbo.fp_ServiceAwards_AddEmailToList", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@emailList_id", SqlDbType.Int)).Value = listId;
cmd.Parameters.Add(new SqlParameter("@email_address", SqlDbType.NVarChar, 255, "email_address"));
cmd.Connection = conn;
da.InsertCommand = cmd;
//delete
cmd = new SqlCommand("dbo.fp_ServiceAwards_DeleteEmailFromList", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@emailList_id", SqlDbType.Int)).Value = listId;
cmd.Parameters.Add(new SqlParameter("@email_address", SqlDbType.NVarChar, 255, "email_address"));
cmd.Connection = conn;
da.DeleteCommand = cmd;
try
{
da.Update(EmailList);
}
catch (Exception ex)
{
string msg = ex.Message;
}
conn.Close();
conn.Dispose();
return EmailList;
}
the code to insert the data from asp.net application to sql database table
like user registration form filelds in sql db table
I'm using ASP.NET 3.5 and Visual Studio 2008 C#.
I'm creating a website and currently making tests for registration. I've manage to create a registration form in the web site and save what the user inputs in the textboxes into a sql server 2008 database.
One of the fields is Password. What I want know is how do you save the password into the database but the database stores it encrypted. That way I'm just able to see the password encrypted. Then when I make a log-in form how to validate the password input by the user with the encrypted one and give a succesful login.
I have no trouble connecting to a SQL server with code in my web config file for user registeration. But I am having trouble telling it to go to a particular table.
Here is what is in my web config file:
<connectionStrings>
<add name="homeowners" connectionString="Data Source=countrypark3.db.5503108.hostedresource.com;Initial Catalog=countrypark3;User ID=xxxxx;Password=xxxx; Trusted_Connection=False" providerName="System.Data.SqlClient" />
<remove name="LocalSqlServer"/>
<add name="LocalSqlServer" connectionString=" Server=whsql-v04.prod.mesa1.secureserver.net; Database=DB_675; User ID=user_id; Password=password; Trusted_Connection=False" providerName="System.Data.SqlClient" />
</connectionStrings>
I'm trying to get it to point to the homeowners table.
i want to create database on single button click and create table on newly created database on second button click . I am using ASP.Net and c#.
View 1 RepliesI wanted to know if it is possible to dynamically add columns to a table in the Database?I know how to create a table dynamically in the DB the code for it is given below, howver I do not know, how do I add columns to it dynamically.
Dim NewTable As String = "CREATE TABLE Dynamic " +
" (" +
" job_id smallint" +
" IDENTITY(1,1)" +[CODE].....
I've have to delete multiple rows from database in a table . Which is the best way to delete data to optimize performance of sql server as well as asp.net.
View 6 Replies