如果驱动程序已经支援静态资料指标，就不需要载入资料指标程序库来取得快照集支援。
If your driver already supports static cursors, you do not need to load the cursor library to get snapshot support.
资料指标程序库会在未变更栏位上制作一个已查询的更新，以模拟定位更新支援。
The cursor library emulates positioned update support by doing a searched update on the unchanging fields.
这些符号ID可以支援各种程序库与专案类型，例如MFC。
These symbol IDs support the various libraries and project types such as MFC.
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