執行兩個不同的命令，但只有一個表正在影響

Question

我有一個表，materials，另一個，stock_refund。我單擊按鈕執行這兩個命令以同時更新兩個表，但兩個記錄都進入同一個表。以下是我的代碼：

SqlConnection con = new SqlConnection(@"Data Source=ANONYMOUS\SQLSERVER;Initial Catalog=IndoStar;Integrated Security=SSPI;"); 
con.Open(); 
SqlCommand cmd = new SqlCommand("Insert into stock_refund values('"+refund_stockname.Text + "','"+refund_sitename.Text + "','"+refund_day.Text + refund_month.Text + refund_year.Text + "','"+refund_quantity.Text + "','"+ refund_unit.Text+"')",con); 
SqlCommand cmd1 = new SqlCommand("Insert into materials values('" + refund_stockname.Text + "','" + refund_day.Text + refund_month.Text + refund_year.Text + "','" + refund_quantity.Text + "','" + refund_unit.Text + "', 'refund','"+ refund_sitename.Text +"')", con); 
int i = cmd.ExecuteNonQuery(); 
int j = cmd.ExecuteNonQuery(); 
if ((i > 0)&& (j>0)) 
{ 
    MessageBox.Show("Stock refunded successfully","Information",MessageBoxButtons.OK,MessageBoxIcon.Information); 
} 

Answer 1

看來你在這裏有一個錯字：

int i = cmd.ExecuteNonQuery(); 
int j = cmd.ExecuteNonQuery(); 

應該

​​3210

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您正在執行的第一個命令兩次。