是ADO还是VEE？

>那么是ADO还是VEE？
我很确定它的VEE。
像VB和.Net这样的ADO使用OLE自动化日期格式（OADate）。
>来自MDSN-Website：“OLE自动化日期实现为浮点数，其值为1899年12月30日午夜的天数。”如果在VB中使用ADO并使用R = Recordset读出日期字段
（“DateField”）和R被定义为一个实际值，你可以看到R是OADate格式。但是在VEE中做同样的事情给了我们一个VEE日期格式的真实值（自00:00开始的秒数）
公元0001年1月1日）所以必须在某处从OADate转换到VEEDate。
还有虫子！
这是VEE！有趣的是，如果你在VEE中执行以下（无意义）操作：Recordset（“DateField”）= Recordset（“DateField”）来读出字段值并将其写回，不会发生错误。
使用变量来存储读数很糟糕：X = Recordset（“DateField”）Recordset（“DateField”）= X我们在夏令时添加当前时区偏移量（不是我在第一封邮件中写的'节省时间'）
显然日期转换不会发生在第一条指令中>或者它是愚人节的笑话？
格奥尔格回答乔治安德鲁？
并且>当我们在数据库中讨论> DbDatetime字段时，他正在说文件系统？
我觉得我们做错了！> -SHAWN-呵呵，这让你感到困惑？
所以你背叛自己是一个机器人，是吗？不，正如安德鲁写的那样，他观察到了与文件系统不同的夏令时相关效果。
但这与这个VEE bug无关.GeorgGeorg Nied Software-Development Hansestr。
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     以下为原文

  
> So is it ADO or is it VEE?

I'm pretty sure its VEE.
ADO like VB and .Net uses the OLE Automation Date Format (OADate).
>From MDSN-Website:
"An OLE Automation date is implemented as a floating-point number whose value is the number of days from midnight, 30 December 1899."

If you use ADO in VB and read out the date field with
  R=Recordset("DateField")
and R being defined as a real value you can see that R is of the OADate format.
But doing the same in VEE gives us a real value that is in VEE Date Format ( number of seconds since 00:00 hours 1 January 0001 AD)
So there must be a conversion from OADate to VEEDate somewhere. And there is the bug! And this is VEE!
Interestingly if you do the following (senseless) operation inside VEE:
Recordset("DateField")=Recordset("DateField")
to read out the field value and write it back, no error occurs. Using a variable to store the readout sucks:
X=Recordset("DateField")
Recordset("DateField")=X
Here we add the current timezone offset when in daylight saving time (not 'time saving' as I wrote in my first mail  )
Obviously the date conversion does not take place in the first instruction


> Or is it an April Fools joke? So Georg is replying to Georg as Andrew? And
> he's saying something about the file system when we're talking about a
> DbDateTime field in a database? I think we done been spoofered!
> -SHAWN-

Hehe, that confuses you? So you betray yourself being a Bot, huh?

No, as Andrew wrote, he had observed a different daylight saving time related effect regarding the file system. But that has nothing to do with this VEE bug.


Georg



Georg Nied  Software-Development  Hansestr. 7  51149 Cologne  Germany
Tel: +49 (2203) 9770915  Fax: +49 (2203) 9770924  E-Mail: info@gn-software.de



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