Netbeans控制器中的SQL语句

Question

我想在我的Netbeans控制器类中使用更新SQL语句。

方法控制器：

public String verify(){ 
String result = "failed"; 
int authcode = staffBean.getVerifyCodeByName(getLoginUserName()); 
if (code==authcode){ 

    result ="success"; 
//add an update SQL statement 
} 

else{ 

    JOptionPane.showMessageDialog(null,"Code does not match!"); 
} 
return result; 
} 

任何人都知道它什么语法？还是不可能在这里做？谢谢

Answer 1

string updateSql = "UPDATE Employees " + "SET LastName = @LastName " + "WHERE FirstName = @FirstName";    
SqlCommand UpdateCmd = new SqlCommand(updateSql, thisConnection);    
UpdateCmd.Parameters.Add("@FirstName", SqlDbType.NVarChar, 10, "FirstName");     
UpdateCmd.Parameters.Add("@LastName", SqlDbType.NVarChar, 20, "LastName"); 
UpdateCmd.Parameters["@FirstName"].Value = "Wade";    
UpdateCmd.Parameters["@LastName"].Value = "Harvey";    
UpdateCmd.ExecuteNonQuery();