Oracle Analysis Function OVER(PARTITION ORDER WINDOWING) (IV) - Usage of Multidimensional Grouping Statistical Function

Simple explanation Multidimensional grouping statistics functions include: ROLLUP and CUBE, which are used in the group by clause of general grouping SQL: GROUP BY (a,b,c): First grouped according to a, then grouped according to b, and finally grouped according to C. The dimension of grouping is (a,b,c) GROUP BY R ...

Posted on Mon, 17 Dec 2018 13:27:03 -0800 by incubi

Talk Android Together (Chapter 76: RecyclerView Foundation for UI Controls in Android)

Hello, ladies and gentlemen. Last time we talked about ListView optimization of UI controls in Android. This time we talked about RecyclerView of UI controls. Don't mention gossip, turn right. Let's talk about Android! Lookers, we introduced the ListView component in the previous chapter. Today we will introduce an upgraded ve ...

Posted on Mon, 17 Dec 2018 04:54:04 -0800 by webpoet

You Don't Know JS (C) -- Part I

type value Native Methods Mandatory Type Conversion grammar type 1. JavaScript has seven built-in types: null, undefined, boolean, number, string, object, and symbol, which can be viewed using the typeof operator. 2. Variables are typeless, but they hold typed values. Types define the behavioral characteristics of ...

Posted on Mon, 17 Dec 2018 03:57:05 -0800 by hawleyj

Dapper.net Nullable< DateTime> Solution of Exception Problems in Type Data Conversion

0x01 Running Environment dapper version 1.50.2 .net framework 4.5 0x02 Problem Description The entity object contains attributes such as DateTime?, DateTime, int, int?. When using the dapper method IDbConnect. Query <>() method, it prompts the System.InvalidOperationException exception, which is confirmed as the exception caused by D ...

Posted on Mon, 17 Dec 2018 02:00:04 -0800 by agent47

Python 3 Learning Notes 4 - Quote http://python 3-cookbook.readthedocs.io/zh_CN/latest/

2018-03-01 Data Structure and Algorithms (4) 1.16 Filter Sequence Elements The simplest way to filter sequence elements is to use list inference. For example: >>> mylist = [1, 4, -5, 10, -7, 2, 3, -1] >>> [n for n in mylist if n > 0] [1, 4, 10, 2, 3] >>> [n for n in mylist if n < 0] [-5, -7, -1] >>> ...

Posted on Mon, 17 Dec 2018 00:21:04 -0800 by Peredy

Three attempts to internationalize my front-end pages (jsp, html generic) (Google Search, translater.js, jquery i18n)

Three attempts to internationalize my pages (Google Search, translater.js, jquery i18n) This article is original, reproduced please attach my blog link, thank you. Suddenly, I have to internationalize my project. As a white man, I have made many attempts and achieved some results. I hope this blog can help you. First, the first idea is to int ...

Posted on Sun, 16 Dec 2018 20:21:04 -0800 by Easter Bunny

Using docker to build prometheus+grafana+consul monitoring environment under CentOS7

Steps: Install docker docker runs consul docker runs prometheus docker runs grafana Prerequisite: CentOS 7 Operating System The latest version of yum Step 1 Check the kernel version $uname -r, running docker requires the kernel version to be above 3.10. Install docker $ sudo yum install -y docker Check if the insta ...

Posted on Sun, 16 Dec 2018 20:06:04 -0800 by jcantrell

Differences between View.inflate and LayoutInflater.inflate methods for Android advancement

1 LayoutInflater for loading layout LayoutInflater is used to load the layout. The task of loading the layout is usually done by calling the setContentView() method in Activity. In fact, the setContentView() method also uses LayoutInflater to load the layout, but this part of the source code is internal. Let's first look at t ...

Posted on Sun, 16 Dec 2018 17:21:03 -0800 by Lashiec

WEB Front End: Handling of Common Compatibility Problems in Browsers (IE+Chrome+Firefox) --03

Compatibility problem directory 16. The subordinates of IE67 have relative positioning and are larger than their parents. The parent overflow:hidden; the latter can't wrap it up. 17. Floating elements of the same level under IE6 will cover absolute positioning elements 18. If the width and height of the positioning parent are odd in IE6, th ...

Posted on Sun, 16 Dec 2018 16:45:04 -0800 by arisjb

Elastic Search Yellow unassigned_shards recovery replicas node recovery

Elastic Search Yellow unassigned_shards recovery replicas node recovery problem Elastic search 5.1 cluster has three nodes, two of which are hung up for some reason. After timely restart, the health status of es changed from red to yellow and continued to yellow Analysis Call the health state interface: GET / ...

Posted on Sun, 16 Dec 2018 16:03:03 -0800 by baruch