Posts tagged ADO
More ADO issues with KB983246/Windows 7 SP1: a reference count leaking when event is used
- 14 March 2011
Update: Microsoft fixed the issue in Windows 8.
User Angus Robertson is reporting that in an application that references ADO 2.1 type library and getting records using the adAsyncExecute method, each execute call leaks three handles and about 20K of memory.
Breaking change in ADO update KB983246 (included in Windows 7 Service Pack 1)
- 24 February 2011
Update2: Microsoft fixed the issue in Windows 8 in a way that old programs would work without change. Those who recompiled with the KB983246 version either need to roll out KB983246 to customer computers or switch back to the old type libraries. New programs are encouraged to use the KB983246 version of type library when they no longer need to support computers without KB983246.
Update: please refer to the knowledge base article kb2517589 An ADO application that is re-compiled on a Windows 7 Service Pack 1-based computer does not run on down-level operating systems for walkarounds
结合ADO、ADOX和MFC的文档/视图/框架架构创建和打开Access数据库
- 15 March 2004
本文描述了如何在MFC的文档/视图/框架架构中使用ADO和ADOX来创建和打开数据库。
在阅读本文之前，建议先对COM，数据库和MFC的文档/视图/框架有一个基本的了解。推荐阅读下列文章
DAO拥有ADO/ADOx/JRO所没有的东西（也许从不会有！
- 27 February 2004
转自 http://www.trigeminal.com/usenet/usenet025.asp?2052
微软很清楚地把ADO定位为DAO的替换……许多微软的代理认为DAO 就是DOA（Dead On Arrival（到达即死），在美国，这是一个术语，用来描写那些希望获救的人在救护车刚到达，要抢救他们时，他们就死了）。然而，在DAO中，许多核心函数功能时被支持的，而ADO/ADOx/JRO 却不被支持，而且甚至可能从未被支持，因为微软似乎正把用户推向其他方向。而Jet本身不会“死”，很清楚，它不再是一个策略平台，所以，在Jet中，似乎不只是要有足够的兴趣使工作做得更有效了。 对于全记录，这里是一个DAO有而ADO没有的所有能力表：