我试图找到一种办法,将CSV档案内容与MySQL数据库(比较100万浏览器)进行高效比较,在把所有浏览器放在一个阵列之前,我做了一些模拟的工作,但由于记忆超负荷,它将为少数几行工作。
我的问题是,是否有这样做的可行办法? 任何图书馆或能够帮助的东西?
我对你的回答表示感激。
假设这种检查是一种先天性检查,而您则着眼于有0个差异,如何将数据库作为同一格式的CSV文档,然后使用指挥线工具(>diff或cmp/cmp/code><<<<>/code><<<<<<<<>>>>><<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>cmp>>>>>>>>>>>>>>>>cmp>>>>>>>>/code>>>>>>>>>>>>>>>>>>>>>>>>/code>/code>/code>/code>/code>/code>/code>/code>/code>
你们需要确保您的CSV垃圾堆放场得到定购和安放;其格式与原始档案相同。
除了“从哪里”的出色答案外,你还可以在MySQL和原始档案中计算出一 has,然后对二.进行比较。
我从未尝试过,但我的SQL有一个CSV表格。 你们也许能够直接阅读MySQL文件,就像它只是另一个数据库表。 很可能需要首先建立一个与社会保障委员会档案相匹配的空表,因此,数据目录中就建立了手法。 然后,你可以把数据目录中的空洞文件替换在您的CSV档案中。 你可能需要开一个修理桌,因为你没有进口。
rel=“nofollow”http://dev.mysql.com/doc/refman/5.1/en/csv-storage-engine.html
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