when try to insert an empty string to oracle through .Net, it would through an error like this:No size set for variable length data type: String.  It occured cause oracle does not treat empty string as null in database, it need to be instead by System.DBNull in DotNet.

posted on 2005-09-28 16:35  davidullua  阅读(2144)  评论(1)    收藏  举报