OLE DB access is great (and needed), but most of today's data doesn't actually exist in nicely formatted rows and columns (which sometimes gets lost when we talk about relational databases so much).
OLE DB访问很伟大(也是很必要的)，但如今大多数数据并不是规规矩矩地就放在行和列之中(当我们大肆谈论关系数据库时，这一事实有时候竟被遗忘了)。