Here is an example of how the parameterized queries work with CSharp, OleDB.
try
{
connw.Open();
OleDbCommand command;
command = new OleDbCommand(
"Update Deliveries " +
"SET Deliveries.EmployeeID = ?, Deliveries.FIN = ?, Deliveries.TodaysOrders = ? , connw);
command.Parameters.Add(new OleDbParameter("@EMPID", Convert.ToDecimal(empsplitIt[1])));
command.Parameters.Add(new OleDbParameter("@FIN", truckSplit[1].ToString()));
command.Parameters.Add(new OleDbParameter("@TodaysOrder", "R"));
catchReturnedRows = command.ExecuteNonQuery();//Commit
connw.Close();
}
catch (OleDbException exception)
{
MessageBox.Show(exception.Message, "OleDb Exception");
}
This will work with any sql statement, you must assign the question mark “?” to each parameter, and then below you must create the parameters and add them in the order of how you laid out the question marks to get the right data into the right field.