alias

Different ways to alias a column

由 懵懂的女人 提交于 2019-12-29 01:37:14
问题 What is the difference between select empName as EmployeeName from employees versus select EmployeeName = empName from employees from a technical point of view. Not sure if this is just SQL server specific or not. Appreciate your answers. 回答1: I'd prefer the first one, since the second one is not portable - select EmployeeName = empName from employees is either a syntax error (at least in SQLite and Oracle), or it might not give you what you expect (comparing two columns EmployeeName and

how to serve html files in nginx without showing the extension in this alias setup

由 烈酒焚心 提交于 2019-12-28 11:53:49
问题 I'm having a lot of trouble setting up this alias inside nginx to display my website correctly. The website I'm concerned with should be accessible from mywebsite.com/mr and is different from the site located at mywebsite.com/ . The website is located at /fullpath (shortened for simplicity) The site needs to serve three kinds of content: The index file located in /fullpath/index.html . Other html files (without showing the .html extension in the browser). Static assets (js/css/img) located in

how to serve html files in nginx without showing the extension in this alias setup

由 这一生的挚爱 提交于 2019-12-28 11:53:23
问题 I'm having a lot of trouble setting up this alias inside nginx to display my website correctly. The website I'm concerned with should be accessible from mywebsite.com/mr and is different from the site located at mywebsite.com/ . The website is located at /fullpath (shortened for simplicity) The site needs to serve three kinds of content: The index file located in /fullpath/index.html . Other html files (without showing the .html extension in the browser). Static assets (js/css/img) located in

BOA移植

由 半城伤御伤魂 提交于 2019-12-28 04:14:54
官网： http://www.boa.org/ BOA 服务器是一个小巧高效的web服务器，是一个运行于unix或linux下的，支持CGI的、适合于嵌入式系统的单任务的http服务器，源代码开放、性能高 配置 boa-0.94.13 # ./configure 1 修改Makefile CC = arm-linux-gcc CPP = arm-linux-gcc -E 编译 boa-0.94.13 # make 出现如下错误 出现错误： yacc -d boa_grammar.y make: yacc: Command not found make: *** [y.tab.c] Error 127 办法： # sudo apt-get install bison 出现错误： lex boa_lexer.l make: lex: Command not found make: *** [lex.yy.c] Error 127 解决办法： # sudo apt-get install flex 出现错误： arm-none-eabi-gcc -g -O2 -pipe -Wall -I. -c -o alias.o alias.c In file included from alias.c:26:0: boa.h:41:19: fatal error: netdb.h: No such

linux配置bond双网卡绑定

由 大憨熊 提交于 2019-12-27 08:39:25
第一步：# vi /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0 BONDING_OPTS="mode=0 miimon=100" BOOTPROTO=none ONBOOT=yes BROADCAST=192.168.0.255 IPADDR=192.168.0.180 NETMASK=255.255.255.0 NETWORK=192.168.0.0 USERCTL=no BONDING_OPTS="mode=0 miimon=100" ，mode有多种模式实现不同的功能， 云服务器、云数据库方案、网络安全防护优选 第二步：# vi /etc/sysconfig/network-scripts /ifcfg-eth0 DEVICE=eth0 BOOTPROTO=none ONBOOT=yes MASTER=bond0 SLAVE=yes USERCTL=no # vi /etc/sysconfig/network-scripts /ifcfg-eth1 DEVICE=eth1 BOOTPROTO=none ONBOOT=yes MASTER=bond0 SLAVE=yes USERCTL=no 第三步：配置/etc/modprobe.conf，添加alias bond0 bonding # vi /etc

mybatis中resultMap配置细则

由 人走茶凉 提交于 2019-12-26 02:39:28
resultMap算是mybatis映射器中最复杂的一个节点了，能够配置的属性较多，我们在 mybatis映射器配置细则 这篇博客中已经简单介绍过resultMap的配置了，当时我们介绍了resultMap中的id和result节点，那么在resultMap中除了这两个之外，还有其他节点，今天我们就来详细说说resultMap中的这些节点。 如果小伙伴对mybatis尚不了解，建议先翻看博主前面几篇博客了解一下，否则本文你可能难以理解，老司机请略过。 概览 先来看看resultMap中都有那些属性： <resultMap> <constructor> <idArg/> <arg/> </constructor> <id/> <result/> <association property=""/> <collection property=""/> <discriminator javaType=""> <case value=""></case> </discriminator> </resultMap> 我们看到，resultMap中一共有六种不同的节点，除了id和result我们在 mybatis映射器配置细则 这篇博客中已经介绍过了之外，还剩三种，剩下的四个本文我们就来一个一个看一下。 constructor constructor主要是用来配置构造方法

escaping single quotes inside an alias in bash

由 こ雲淡風輕ζ 提交于 2019-12-25 09:03:11
问题 I am trying to set up an alias in my .bashrc file like the below: clear && printf '\033[3J' But the following does not work alias clall= "clear && printf \'\033[3J\'" alias clall= "clear \&\& printf \'\\033\[3J\'" 回答1: The general rule about aliases is that if you have a question about how to use them (or whether they're capable enough for your purpose), you should be using a function instead. A function gives you all the capability (considerably more, for that matter), and doesn't require

OLEDB query to SQL Server fails

由 六月ゝ 毕业季﹏ 提交于 2019-12-25 03:57:09
问题 I have two SQL queries: A. SELECT (upper(rtrim(ltrim(lastname))) + upper(rtrim(ltrim(firstname))) + upper(rtrim(ltrim(middlename))) + rtrim(ltrim(v)) ) AS userCompareStr FROM atable ; and B. SELECT (upper(rtrim(ltrim(lastname))) + upper(rtrim(ltrim(firstname))) + upper(rtrim(ltrim(middlename))) + rtrim(ltrim(v)) ) AS userCompareStr FROM atable WHERE userCompareStr='GAPYLE1111' ; I have the following code: Dim sql As String Dim conn As OleDbConnection Dim cmd As OleDbDataAdapter Dim ds As

git alias command is not working can any one describe me syntax of git alias command [duplicate]

由 巧了我就是萌 提交于 2019-12-25 03:42:25
问题 This question already has answers here : How do I alias commands in git? (20 answers) Closed 3 years ago . git alias command is not working I tried git alias'cm' commit -m but this is not working for me. 回答1: #set the alias git config --global alias.cm "commit -m" Using it: git cm "message" 来源： https://stackoverflow.com/questions/34788557/git-alias-command-is-not-working-can-any-one-describe-me-syntax-of-git-alias-com

Linux alias question

由 此生再无相见时 提交于 2019-12-25 03:36:47
问题 I want to create an alias for this command "rmi" so that if I execute rmi File.txt it will actually execute ls * | grep -v File.txt | xargs rm -rf Basically I want to reorder arguments. 回答1: Script: #!/usr/bin/env bash ls * | grep -v $1 | xargs rm -rf -Save this as rmi. -do: chmod a+x rmi -Then add to path. 回答2: You can't do that with an alias. You'll need to write a script. 回答3: You don't need a script. Instead of alias, you can write a shell function: myfunc() { ls * | grep -v $1 | xargs rm
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