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我正在使用大小为 500 MB 的 access 2000 mdb 文件,当我Select * From MyTable Where Phone=7744111让它花费太长时间时,超过 30 秒才能得到结果。
Select * From MyTable Where Phone=7744111
如何提高搜索性能?(我使用的是 vb6 和 ado 2.8)
索引字段 [Phone] - 似乎您正在执行完整扫描
也尝试给出确切的列列表而不是'*'