I am trying to understand how the followi开发者_开发技巧ng builtin functions work when sequentially processing cursor rows.The descriptions come from the Python 3.1 manual (using SQLite3)
In a web application, that may be installed anywhere on the filesystem, I need to figure out the path to the root of the installation folder.
背景： 同一个项目两个系统分别使用了PG库和Oracle库，Oracle是生产库，数据动态更新，现在在PG库中需要实时的获取到更新的数据进行统计，基于此种方式，可以通过ETL的工具实现，但是需要定期进行维护等，于是想着是
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