I m使用R读到MySQL数据库中的一些数据,使用RODBC包。 然后对数据进行处理,一些结果被送回数据库。 问题是,服务器由于不活动而关闭了约一分钟的连接,这是在当地处理数据所需要的时间。 它拥有一个共享的服务器,因此,东道方赢得时间占用。
我认为,有两种可能性可以做到这一点:
我可以轻松地实施第一个目标,但经常开放和紧密联系似乎很缓慢。 是否有任何人知道有效率的指挥? 还是完全更好?
第一个解决办法是我所希望的解决办法。 确实很难用像R这样的单一阅读方案来做。 如果R是繁忙的运行分析,它就没有办法处理ing。 除非你做成百上千的读物/做成,否则,开关和关闭连接的方法不应带来太多的间接费用。
I noticed that there were some threads with similar questions, and I did look through them but did not really get a convincing answer. Here s my question: The subquery below returns a Table with 3 ...
<?php $con=mysql_connect("localhost","mts","mts"); if(!con) { die( unable to connect . mysql_error()); } mysql_select_db("mts",$con); /* date_default_timezone_set ("Asia/Calcutta"); $date = ...
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