Nathan；

新建UDC後，發現P程式仍然不能正常選擇，需要清除相關的快取資料。

>登入Server Manager中

>選擇對應的Web主機 > JDBj Database Caches > JDBj Service Cache > Clear Cache

引用文章：http://e1tips.com/2012/01/04/how-to-clear-the-udc-...

Did your users add a User Defined Code (UDC) and now they can’t use it?

Well, you have to clear the JAS server cache of UDC values. 

Unfortunately, there isn’t an obvious JDBj Database Cache listing in Server Manager as UDC Cache. 

So, which one needs to be cleared? => JDBj Service Cache