Counter in SQL and Database help!

[dahrull]

Hey all!
I'm a bit of a 'Newbie' and I'm practising SQL and Databases. I've got a windows form in VS2010 which takes a word from a text box and on a button click, that a word is stored in the database.
I have my database called 'Setup' my table called 'tblpeople' and 2 columns called 'people' and 'occur'
So right now my data values from textbox1 are going into 'people' like it should, but what I want to add is that if a persons name is all ready in 'people' then I want it to NOT add it in again but add a count to the 'occur' column beside it.
so in my data base table it should look like this once i've updated it:
people occur
john 1
James 5

That's only an example since it could be any name i've entered.
Here's my code so far:

private void database()
        {
            
            {

                SqlConnection conn = new SqlConnection();
                connection.ConnectionString = (@"Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\John\Desktop\db\db\db\Setup.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");
                conn.Open();

                SqlCommand cmd = new SqlCommand("INSERT INTO tblpeople  (people) VALUES (@ppl)", conn;
              

                try
                {
                    string[] splin = textbox1.Text.Split(' '); 

                    foreach (string pstring in splin)
                    {
                       
                        if (pstring.StartsWith("*")) 
                        {
                            cmd.Parameters.AddWithValue("@ppl",pstring);
                            int rowsAffected = cmd.ExecuteNonQuery();

                    
                        }
                    }
                }

                finally
                {
                    conn.Close();
                }
            }
        }

note: I've got the string split because it's only names starting with * to get stored.

So any help guys? would be much appreciated.

[dahrull]

bump

[Erendar]

Change your sql request to something like that

IF EXISTS (SELECT * FROM Table1 WHERE Column1='SomeValue')
UPDATE Table1 SET (...) WHERE Column1='SomeValue'
ELSE
INSERT INTO Table1 VALUES (...)