我做了一个表格，里面有一列Date_Created。在我的表单中，我在上面放置了一个显示项目，其中有一个公式，sysdate这样每次表单运行并插入新数据时，日期总是会更新，但是当我查看数据库时，Date_Created它是空白的！是什么导致了这个问题？tnx
屏幕截图：
http://static.tumblr.com/ezdv8nl/YcUmu2vcc/untitled_1.jpg
我的提交按钮代码：
DECLARE
adminPass VarChar(20);
alert Number;
BEGIN
IF :USERS.PASS != :USERS.PASS2 OR :USERS.PASS IS NULL THEN
MESSAGE('Passwords did not match');
GO_ITEM('PASS2');
ELSIF :USERS.ACCESS_LEVEL = 'admin' THEN
SELECT password
INTO adminPass
FROM admin_pass_history
WHERE id = (SELECT MAX(id) FROM admin_pass_history);
IF :USERS.ADMIN_PASS IS NULL THEN
MESSAGE('Please enter the Administrator Password');
ELSIF :USERS.ADMIN_PASS != adminPass THEN
MESSAGE('Administrator Password did not match');
GO_ITEM('ADMIN_PASS');
ELSE
COMMIT;
alert:= show_alert('USER_CREATED');
IF alert = alert_button1 THEN
OPEN_FORM('C:\Documents and Settings\Richzer Cruz\Desktop\LOGIN.fmx');
END IF;
END IF;
END IF;
EXCEPTION
WHEN NO_DATA_FOUND THEN
MESSAGE('Administrator Password did not match');
GO_ITEM('ADMIN_PASS');
END;