Change the data type of the TIMECHANGED column to NVarChar with a length of20 .
将TIMECHANGED列的数据类型更改为NVarChar,并指定其长度为20字节。
Throughout this article , I use nvarchar ( max ) to be as generic as possible and to allow for the most flexibility .
在整篇文章中,我尽可能使用nvarchar(max)并且最大程度地保证灵活性。