Question

I am doing a really simple query in ASP.NET, but after I inserted the LIKE clause it stops working.

Example:

String sql = " SELECT * 
                 FROM Products 
                WHERE ID = @MYID 
                  AND Name LIKE '%@MYNAME%' ";
SqlCommand command = new SqlCommand(sql, cn);


command.Parameters.AddWithValue("@MYID", MYID.Text);

command.Parameters.AddWithValue("@MYNAME", MYNAME.Text);

If I removed the LIKE it works. Hence I am thinking its to do with the ” quotes?

Answer 1

The sql statement should look like this:

String sql = " SELECT * FROM Products WHERE ID = @MYID AND Name LIKE '%' + @MYNAME + '%'"; 

I am not sure I understood your comment completely, but it seems you want to use the value from a text box in your query – maybe this is what you are trying to do:

String sql = " SELECT * FROM Products WHERE ID = @MYID AND Name LIKE '%' + text_box.Text + '%'";

“text_box” would be the actual id of your textBox control.