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Return a value if no rows are found in Microsoft tSQL

Using a Microsoft version of SQL, here's my simple query. If I query a record that doesn't exist then I will ... Sites S WHERE S.Id = @SiteId See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Add an object to an ArrayList and modify it later

If I have an ArrayList, and I added an object to it, and later I modified this object, will this change ... in the ArrayList now null too? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Difference between readFile() and readFileSync()

The following code outputs the content of the index.html (it just contains the text hello world) to the browser. However, ... on " + port); }); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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utf 8 - MySQL command line formatting with UTF8

I have a database table that contains Swedish/Norwegian strings. When I query some data, I get output like ... the tabular formatting intact? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - pandas.io.json.json_normalize with very nested json

I have been trying to normalize a very nested json file I will later analyze. What I am struggling with is how to go ... ': False, u'took': 170} See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Retrofit Uploading multiple images to a single key

I am using Retrofit to upload images to my server. Here I need to upload multiple images for a single key. I ... } Please help me with this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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math - Perpendicular on a line from a given point

How can I draw a perpendicular on a line segment from a given point? My line segment is defined as (x1, y1), (x2 ... to find out this (x4,y4). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do i use subprocesses to force python to release memory?

I was reading up on Python Memory Management and would like to reduce the memory footprint of my application. ... python c-extensions as well? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Providing a default value for an Optional in Swift?

The idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a ... in an extension for Optional? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Building with Lombok's @Slf4j and Intellij: Cannot find symbol log

I have a maven project that builds with no problems from the command line. However, when I build it with IntelliJ ... how to resolve the issue? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gradle - Conflict with dependency 'com.android.support:support-annotations'. Resolved versions for app (23.1.0) and test app (23.0.1) differ

When building I get the following error: Conflict with dependency 'com.android.support:support-annotations'. Resolved ... can I fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to update record using Entity Framework Core?

What is the best approach to update database table data in Entity Framework Core? Retrieve the table row, do the ... we can use over EF6? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to hide Android StatusBar in Flutter

How to hide the Android Status Bar in a Flutter App? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scope - Getting "global name 'foo' is not defined" with Python's timeit

I'm trying to find out how much time it takes to execute a Python statement, so I looked online and found ... doesn't work. Any thoughts? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - pass JSON to HTTP POST Request

I'm trying to make a HTTP POST request to the google QPX Express API [1] using nodejs and request [2] ... API is returning 400 parse error See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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843 views

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c# - How can I align text in columns using Console.WriteLine?

I have a sort of column display, but the end two column's seem to not be aligning correctly. This is ... advice it would be greatly appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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561 views

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text to speech - How to make Python speak

How could I make Python say some text? I could use Festival with subprocess but I won't be able to control it ( ... for Festival, eSpeak, ... ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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182 views

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Global variables in packages in R

I'm developing a package in R. I have a bunch of functions, some of them need some global variables. How do ... the way to go about the things. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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templates - Can you make custom operators in C++?

Is it possible to make a custom operator so you can do things like this? if ("Hello, world!" contains "Hello") ... ... it a good idea to..." ;) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring @ContextConfiguration how to put the right location for the xml

In our project we are writting a test to check if the controller returns the right modelview @Test public void ... .Thread.run(Unknown Source) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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algorithm - How to calculate or approximate the median of a list without storing the list

I'm trying to calculate the median of a set of values, but I don't want to store all the values as ... of histogram for each value. Thanks Nick See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Enable SSL for my WCF service

I have a WCF service that uses basicHttpbinding in development. Now in product we want to use SSL, what ... to force SSL connections only? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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250 views

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Best way to check if an iPhone app is running for the first time

I want to check if my iPhone app is running for the first time. I can create a file in the documents folder and ... is a better way to do this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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194 views

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android - Multiple selection in custom ListView with CAB

After reading and try'n'error for days, I′m giving up and ask for help. < edit > I am using ActionBarSherlock ... snippets to help, let me know. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Html5 data-* with asp.net mvc TextboxFor html attributes

How do I add data-* html attributes using TextboxFor? This is what I currently have: @Html.TextBoxFor(model => ... . Whats the way around this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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496 views

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ios - Class has no initializers Swift

I have a problem with Swift class. I have a swift file for UITableViewController class and UITableViewCell class. My ... (named: image) } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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217 views

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Nested or Inner Class in PHP

I'm building a User Class for my new website, however this time I was thinking to build it little ... versions might support nested classes? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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366 views

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android - FATAL EXCEPTION: Firebase-Messaging-Intent-Handle -- java.lang.NoClassDefFoundError

I am not using any Firebase or Youtube code/libraries in my project. Yet recently, in Android Pre ... .google.com/issues/160907013#comment256 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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