compare | 易学教程

mysql how to compare date in the format dd-mon-yy

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问题 How do I compare date in the format dd-mon-yy ? For example: 10-NOV-14 > 07-OCT-13. select expiration_date from grocery where expiration_date < 14-oct-13 回答1: Use STR_TO_DATE: select expiration_date from grocery where expiration_date < STR_TO_DATE('14-oct-13', '%d-%b-%y') expiration_date will also need to be wrapped in STR_TO_DATE if it is not already a DATE format. 来源： https://stackoverflow.com/questions/19366376/mysql-how-to-compare-date-in-the-format-dd-mon-yy

Check if an array contains elements of another array in swift

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问题 I need to check if an array contains at least one or more elements of another array and print them out in swift. This is my situation: var array1 = ["user1", "user2", "user3", "user4"] var array2 = ["user3, "user5", "user7", "user9, "user4"] //I need to get back an array that says that both the arrays contains ex. "user3" and "user4" I searched the web but i only found the opposite answer that helps t check if there is a difference between 2 arrays using array.symmetricDifference() Any helps?

如何用Beyond Compare进行文件和文件夹对比

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Beyond Compare是一款非常强大并且好用的文件对比工具，同时支持文件对比和文件夹对比，当然也包括其它许多功能，比如表格比较、图片比较等。本节小编将给大家介绍下 Beyond Compare 进行文件和文件夹对比的基本用法。步骤一在电脑上新建两个文本文件1.txt和2.txt，文本的内容如图所示；在电脑上新建两个文本文件步骤二打开Beyond Compare，然后双击左边的“文本比较”，打开“文本比较”会话窗口；双击软件界面左边的“文本比较”按钮步骤三打开的新页面分为左右两个部分，点击上面的打开文件的图标，可以浏览本地的文件系统，找到要进行比对的文件；浏览本地文件找到要对比的文本文件步骤四把两个文件都打开以后，可以看到内容不同的地方会用红色标注出来，同时，两个部分都有一个箭头；文本文件不同的地方用红色标注步骤五点击左边的箭头，可以把左边的内容同步修改到右边。点击右边的箭头可以把右边的内容同步到左边。这样可以很方便的对文件就行修改。如下图是把右边的内容同步到了左边。把右边文件的内容同步到左边文件中示例步骤六对于文件夹也是一样的操作方法，如下图所示。文件夹对比差异示例步骤七如果文件内容是不一样的，颜色会变成红色。双击任何一个文件，可以看到具体的不同。文件夹对比差异红色显示示例怎么样，是不是很简单，如果觉得有用的话，赶紧点击

comparing values in two pandas dataframes to keep a running count

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问题 My apologies for the length of this but I want to explain as fully as possible. I am completely stumped on how to solve this. The Setup: I have two dataframes the first has a list of all possible values in the first column there are no duplicate values in this column. Let's call it df_01. Theses are all the common possible values in each list. All additional columns represent independent lists. Each contains a number that represents how many days any given value of all possible values has

Equality of String characters and usual character don't work / How to get indexes of those chars

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问题 I am trying to compare the chars of user String with the 2 chars also got from user, and if one of them is equal to char of that String in particular index, so I need to print that index. import java.util.Scanner; public class TestIndexOf { private static String text; private static char ch1, ch2; public static void main(String[] args) { TestIndexOf test = new TestIndexOf(); test.getInput(); System.out.println(test.getIndex(text, ch1, ch2)); } public static void getInput() { Scanner scan =

PHP Bitwise compare values from database with an array

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问题 Actually i would like to compare some values in a table with an array and output the key with has equal value of the array. Problem is: the values in the database are bitwise if i am right. Not sure if it is the right explanation in english. Example: and here some example values form the table 1,65,2081,2145,18497,32769 65 contains 64 which is "UR_LEAD" and 1 which is "UR_SWP" Here the array which i would like to compare with: $userrights_array = array( "UR_SWP" => 1, "UR_BUHA" => 2, "UR_AZ"

How to extract outstanding values from an object returned by waldo::compare()?

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问题 I'm trying to use a new R package called waldo (see at the tidyverse blog too) that is designed to compare data objects to find differences. The waldo::compare() function returns an object that is, according to the documentation: a character vector with class "waldo_compare" The main purpose of this function is to be used within the console, leveraging coloring features to highlight outstanding values that are not equal between data objects. However, while just examining in console is useful,

mysql - Compare values from strings for date=n with date=n-1

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问题 I have a dataset like: id | country | date | rank | sport -------------------------------------------- 1 | US | 2000-01-30 | 1 | tennis 2 | BE | 2000-01-30 | 2 | tennis 3 | UK | 2000-01-30 | 3 | tennis 4 | UK | 2000-01-30 | 1 | golf 5 | US | 2000-01-30 | 2 | golf 6 | FR | 2000-01-30 | 3 | golf 7 | UK | 2000-01-31 | 1 | tennis 8 | US | 2000-01-31 | 2 | tennis 9 | FR | 2000-01-31 | 3 | tennis 10 | UK | 2000-01-31 | 1 | golf 11 | US | 2000-01-31 | 2 | golf 12 | FR | 2000-01-31 | 3 | golf I'd

c# Match between two lists, then add up time in between the two lists

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问题 I have two lists and a class public class CommonLog { public string Break { get; set; } public string Cart { get; set; } public string Length { get; set; } } This is list one commonlog.Add(new CommonLog { Break = breakTimeVar, Cart = cartVar, Length = lengthHours }); and one like this list 2 commonlog2.Add(new CommonLog { Break = breakTimeVar2, Cart = cartVar2, Length = lengthHours2 }); The two pieces of information I need to match are as follows List 1 contains this 0016 009130 00:01:30 List

Can a git repository be created where branches are clones from other repositories?

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问题 Here is the situation: I have inherited two separate machines, one used for "development" the other is the production machine. The problem: They are of course out of sync. In order to bring some sanity to situation I made independent git repositories of the application directory on each machine. I now wish to be able to compare those repos so I can find out what is different between them. My idea was to make a third repository that contained two branches, one from the repository of the "dev"