https://stackoverflow.com/questions/3232943/update-value-of-a-nested-dictionary-of-varying-depth p.p1 { margin: 0; font: 10px Helvetica; color: rgba(169, 183, 198, 1); background-color: rgba(43, 43, 43, 1) } span.s1 { color: rgba(204, 120, 50, 1) } s…

https://stackoverflow.com/questions/51751426/failed-to-run-the-da-platform-trial-vm {  "annotations": {    "list": [      {        "builtIn": 1,        "datasource": "-- Grafana --",        "enable&qu…

https://stackoverflow.com/questions/40949967/running-storm-from-intellij-nimbus-error 0down votefavorite   I am learning storm, and I made a simple project. I remember running it, and it worked as I can recall, but now when I try to run it from intel…

https://stackoverflow.com/questions/16130292/java-lang-outofmemoryerror-permgen-space-java-reflection When using Java reflection, the JVM has two methods of accessing the information on the class being reflected. It can use a JNI accessor, or a Java…

https://stackoverflow.com/questions 可以进行搜索,在页面顶部,有搜索输入框…

option-1: edit \My Documents\IISExpress\config\applicationhost.config file and enable windowsAuthentication, i.e: <system.webServer> ... <security> ... <authentication> <windowsAuthentication enabled="true" /> </authen…

select phone,count(order_id) as c from table_recordgroup by phoneorder by c desc SELECT CASEWHEN (age >= 10 AND age <= 20) THEN '10-20'WHEN (age >= 21 AND age <= 30) THEN '21-30'ELSE '30-'END 'eag_layer', count(*) empsFROM address_bookGROUP BY…

Observe that you call obj.draw as : <button onclick="obj.draw() The first time obj.draw is called, the context is different than when it called by requestAnimationFramemultiple times, as a callback function before the repaint. So try by saving thi…

http://stackoverflow.com/questions/12601907/loading-google-maps-in-anonymous-function   window.gMapsCallback = function(){ $(window).trigger('gMapsLoaded'); } $(document).ready((function(){ function initialize(){ var mapOptions = { zoom: 8, center: n…

请看此链接:http://stackoverflow.com/questions/15666048/service-vs-provider-vs-factory…

https://stackoverflow.com/ Stack Overflow是一个与程序相关的IT技术问答网站.用户可以在网站免费提交问题,浏览问题,索引相关内容,在创建主页的时候使用简单的HTML.在问题页面,不会弹出任何广告,销售信息,JavaScript 窗口等.…

看这个链接: 3down votefavorite 1 I've followed all the suggestions here. When I press return, I get a new line that is indented with tabs instead of spaces. If I backspace to clear the tabs, and then press TAB a series of times, it correctly indents with…

331down voteaccepted See it in Activity Lifecycle (at Android Developers). onCreate(): Called when the activity is first created. This is where you should do all of your normal static set up: create views, bind data to lists, etc. This method also pr…

30down votefavorite 16 git 1.7.12 I want to mark all files below a given directory as assume-unchanged. 1) git update-index --assume-unchaged dir/ gives "Ignoring path." 2) git update-index --assume-unchaged dir/* quickly fails because it will e…

GET usernested/_search { "query": { "nested": { "path": "tags", "query": { "bool": { "must": [ { "term": { "tags.brandid": "93a8296c-5b64-49ea-bd92-b19192def2e9…

虚拟机环境:VirtualBox 操作系统:CentOS 7 宿主机: Microsoft Windows 10 家庭中文版 Docker简介 Docker是一个轻量级容器技术.Docker直接运行在Linux上,而不是运行在虚拟机上,实现了虚拟机技术的资源格式,性能高于虚拟机技术. 1)工作流程: Docker支持将软件编译成一个镜像,在这个镜像里做好软件的各种配置,然后发布这个镜像,使用者可以运行这个镜像,运行中的镜像被称为容器. 2)核心概念: 镜像(Image):Docker镜像用于创建…

在nginx.conf中增加新server配置 server { listen ; server_name www.some.com; ssl on; ssl_certificate sslkey/some.com.crt; ssl_certificate_key sslkey/some.com.key; ssl_session_timeout 5m; ssl_protocols TLSv1 TLSv1. TLSv1.; ssl_ciphers ALL:!DH:!EXPORT:!RC4:+HIG…

前因 今天检查一个vue页面问题,就是在切换Tab时候(某些win10电脑),页面会卡顿一段很长的时间,短则3秒,长则十几秒,这个体验非常糟糕,于是我着手寻找其中原因. 概况 这个vue页面的元素非常多,主要分为六个Tab内容,切换Tab也只是控制Tab内容的显隐.按道理这是非常简单的行为,不应该出现卡顿的情况. 检查 代码上,我将切换Tab做的一些业务逻辑去掉,只留下控制显隐部分,并打印执行时间. 测试过后发现,即便是这么简单的操作,页面还是会卡顿,从打印的日志上看,我发现了切换的代码很快就执…

mysql - SQL UPDATE with INNER JOIN - Stack Overflowhttps://stackoverflow.com/questions/14491042/sql-update-with-inner-join MySQL UPDATE JOIN | Cross-Table Update in MySQLhttp://www.mysqltutorial.org/mysql-update-join/…

1.讲查询的结果,原封不动的插入到另一个表中,结果报错了:MongoError: Cannot update '__v' and '__v' at the same time,起初认为是mongodb副本集出现问题了,排查了mongodb,确定不是数据库问题了 看到这篇文章解决了https://stackoverflow.com/questions/33626456/mongoerror-exception-cannot-update-v-and-v-at-the-same-time 直接上解决…

好长一段时间没动pods,今天偶然需要更新一个库,于是执行了下pod update,然后惊悚的出现了这个报错: [!] Failed to connect to GitHub to update the CocoaPods/Specs specs repo - Please check if you are offline, or that GitHub is down 找了一圈资料,尝试了估计不下5种方案,最后解决记录如下: 总结起来就是: update openssl, then ruby,…

问题 有一个表,建表语句如下: CREATE TABLE `tbl_host` ( `id` bigint(64) NOT NULL AUTO_INCREMENT, `ip` varchar(255) NOT NULL DEFAULT '', `host_name` varchar(2555) NOT NULL DEFAULT '', `timestamp` int(11) NOT NULL DEFAULT '0', PRIMARY KEY (`id`), UNIQUE KEY `idx_ip`…

PG cannot execute UPDATE in a read-only transaction出现这种情况时,说明SQL语句可能是运行在一个PG集群中的非master节点上.查看data/pg_hba.conf. SELECT pg_is_in_recovery();    This cannot return true in a master server because the only time a master server can be in recovery. 还有如下可能N…

遇到有些APP的HTTPS请求无法抓取!错误提示: !SecureClientPipeDirect failed: System.Security.Authentication.AuthenticationException A call to SSPI failed, see inner exception. < An unknown error occurred while processing the certificate for pipe (CN=*.umeng.com, O=DO_N…

今天插入一条数据就像这样 limit ), , )) 然后报错: You can't specify target table 'categorys' for update in FROM clause 不能select同一个表中的某些值,然后update到同一个表中 然后修改如下: limit )a ), , )) 重点在  select a.id from (select……)a 参考资料: http://www.cnblogs.com/chy1000/archive/2010/03/02/…

问题 由于有人rebase了分支,或者不知道怎么搞的.其他人拉取代码的时候,发现拉不下来. >git fetch error: cannot lock ref 'refs/remotes/origin/xxx-branch': is at 8117caf7b1c88b2d5dfebd7581f6891d87b9abee but expected f38e8d35ae8ea7f177c537a98f4140dd76b8e2bd From xxxxxxx-git-url ! f38e8d35..9d…

insert 语句中不能使用where,所以如果需要根据插入的数据在已有的数据库表是否重复做一些操作可以使用下面三种方法: 1. 使用insert,捕获duplicate错误 2. insert into ... on duplicate key update. 如果重复,执行update 3. insert ignore, 抛出警告而不是错误 eg. for insert into ... on duplicate key update mysql 插入数据,如果存在,更新 INSERT IN…

执行mysql update,或者delete的时候会遇到: You can't specify target table for update in FROM clause 相关的原因自不必说:下面有stackoverflow中的帖子: https://stackoverflow.com/questions/4429319/you-cant-specify-target-table-for-update-in-from-clause 我采取的是将id ,放到一个临时表中: (2):https:…

Q:   Hibernate generates UPDATE statements, which include all columns, regardless of whether I'm changing the value in that columns, eg: tx.begin(); Item i ); i.setA("a-value"); tx.commit(); issues this UPDATE statement: , B , C , D so columns B…

这里做了比较清晰的解释: http://mybatis.github.io/mybatis-3/java-api.html SqlSession As mentioned above, the SqlSession instance is the most powerful class in MyBatis. It is where you'll find all of the methods to execute statements, commit or rollback transacti…