老外提问: Hi, I have an sql query which takes 8 seconds in the first run. The next run there after takes 0.5 seconds and all consecutive runs take 0.5 seconds. Is the plan getting cached? How do i make this query run in 0.5 second in the first run itself
上次写了个 cheat.sh 在手,天下我有,小伙伴们热情高涨,觉得这是一个没有杂质的好工具:也有小伙伴抱怨说对 Windows 用户不是特别友好 (其实用 curl API 是没啥问题的).为了「雨露均沾」,今天就介绍一款对 Windows 超级 * N (N 是几,大家读完文章自己定) 友好的工具 我甚至有些嫉妒,因为 Windows 的这款工具需要我在 Mac 结合好几个工具才能达到与之相媲美的效果 今天的主角就是~~~~ PowerToys PowerToys 就是这么一款有 Power
虽然已经装了,但一直报错 ,版本是3.1.1 最新版 ➜ ~ pip install robotframework DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop su
嗯,就像标题说的那么简单而已 &的并发功能 time for i in `grep server /etc/hosts | awk '{print $1}'`; do (ssh $i "echo 123; sleep 1; echo 456" &); done real 0m0.063s user 0m0.016s sys 0m0.004s xargs的并发功能 time grep server /etc/hosts | awk '{print $1}' | xargs
idea 下载git代码 执行testng用例,报错: 下午4:47 Error running 'Test.apkStart': Cannot start process, the working directory '/Users/pub_pawf_autotest/autotest/auto_link/%MODULE_WORKING_DIR%' does not exist 解决办法: idea > Run -> Edit Configurations 选中有错误的类 把working
java执行命令: p = Runtime.getRuntime().exec(commandStr); [INFO ] 执行命令结果:nullbash: adb: command not found java.io.IOException: Cannot run program "adb": error=2, No such file or directory at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) at
You can config file by this command: grep -rl "Could not detect Mac OS X Version from sw_vers output:" /Applications/Appium.app/ Terminal will show : /Applications/Appium.app//Contents/Resources/node_modules/appium/node_modules/appium-support/