SQL Błąd zapytania - "Kolumna nie może być null"

Question

Mam kwerendy SQL:

String S = Editor1.Content.ToString(); 
    Response.Write(S);  
    string sql = "insert into testcase.ishan(nmae,orders) VALUES ('9',@S)"; 
    OdbcCommand cmd = new OdbcCommand(sql, myConn); 
      cmd.Parameters.AddWithValue("@S", S); 
      cmd.ExecuteNonQuery(); 

Error: Column 'orders' cannot be null at System.Data.Odbc.OdbcConnection.HandleError

Answer 1

Z manual:

When CommandType is set to Text, the .NET Framework Data Provider for ODBC does not support passing named parameters to an SQL statement or to a stored procedure called by an OdbcCommand. In either of these cases, use the question mark (?) placeholder. For example:

SELECT * FROM Customers WHERE CustomerID = ? 

The order in which OdbcParameter objects are added to the OdbcParameterCollection must directly correspond to the position of the question mark placeholder for the parameter in the command text.

użyj:

string sql = "insert into testcase.ishan(nmae,orders) VALUES ('9', ?)"; 
OdbcCommand cmd = new OdbcCommand(sql, myConn); 
cmd.Parameters.AddWithValue("you_can_write_anything_here_its_ignored_anyway", S); 
cmd.ExecuteNonQuery(); 

Answer 2

będzie ci pomocna

cmd.Parameters.Add("@S", OdbcType.Char, S);