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Does anyone know which one is faster: SELECT * FROM table WHERE column LIKE '%text%'; or SELECT * FROM table WHERE LOCATE('text',column)>0; See Question&Answers more detail:os...

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java - javax.net.ssl.SSLException: SSL handshake aborted Connection reset by peer while calling webservice Android

I am calling https webservice and its works fine before, but now when i am trying to call it its give me ... please help me to solve it. See Question&Answers more detail:os...

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python - Append item to MongoDB document array in PyMongo without re-insertion

I am using MongoDB as the back-end database for Python web application (PyMongo + Bottle). Users can ... thoughts are greatly appreciated :) See Question&Answers more detail:os...

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file io - PostgreSQL: export resulting data from SQL query to Excel/CSV

I need to export the resulting data from a query in PostgreSQL to Excel/CSV. I use PostgreSQL 8.2.11. SQL error ... )TO '"c:auto_new.txt"'; See Question&Answers more detail:os...

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ios - Adding Convenience Initializers in Swift Subclass

As a learning exercise I am trying to implement a subclass of SKShapeNode that provides a new convenience initializer ... am I doing wrong? See Question&Answers more detail:os...

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connection - Argument type for Qt signal and slot, does const reference qualifiers matters?

For signal and slot of below type signals: void textChanged(const QString &); public slots: void setText(const ... type error at compile time. See Question&Answers more detail:os...

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php - Running ImageMagick on XAMPP 1.8.3 with Windows 7

I have been trying for hours to get ImageMagick working on my localhost (running XAMPP 1.8.3 on ... XAMPP/ImageMagick/Imagick that works? See Question&Answers more detail:os...

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memory - Python deep getsizeof list with contents?

I was surprised that sys.getsizeof( 10000*[x] ) is 40036 regardless of x: 0, "a", 1000*"a", ... python-allocate-new-memory-for-identical-strings See Question&Answers more detail:os...

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ruby - Why should we avoid using class variables @@ in rails?

Why should we avoid using class variables @@ in rails? Is there any security loopholes with that. Please answer ... class variables @@ in rails? See Question&Answers more detail:os...

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algorithm - Interleave array in constant space

Suppose we have an array a1, a2,... , an, b1, b2, ..., bn. The goal is to change this array to a1, ... of extra storage. How can this be done? See Question&Answers more detail:os...

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XPath: How to select node with some attribute by index?

I have several nodes with some particular attribute and I need to select one of them by index. For example I need to ... index ? How to do it? See Question&Answers more detail:os...

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java - Maven: resource binary changes file size after build

I am using the appengine-maven-plugin to build my Java Google App Engine project. I include .p12 certificates in ... WAR? Thanks for your help. See Question&Answers more detail:os...

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handlebars.js - Positional index in Ember.js collections iteration

Is there a way to get positional index during iteration in ember.js? {{#each itemsArray}} {{name}} {{/each ... a nested view would be required. See Question&Answers more detail:os...

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android - Howto avoid the "EACCES permission denied" ON SDCARD with KITKAT 4.4.2 Version. New policy from google

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c - Executing shell script with system() returns 256. What does that mean?

I've written a shell script to soft-restart HAProxy (reverse proxy). Executing the script from the shell works. ... run with sudo. Any hints? See Question&Answers more detail:os...

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Google Apps Script, copy one spreadsheet to another spreadsheet with formatting

Hopefully this question has not already been answered. I have spent a considerable amount of time searching, and ... any suggestions? Thanks! See Question&Answers more detail:os...

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ios - Working with Live Photos in Playground

I've done a fair amount of searching the web, but I'm currently attempting to work with "Live Photos" in ... for download online. Any ideas? See Question&Answers more detail:os...

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c# - FindWindow and SetForegroundWindow alternatives?

I am searching for alternatives to the old User32.dll version of switching to a different application with FindWindow() ... I was looking for. See Question&Answers more detail:os...

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json - Javascript: stringify object (including members of type function)

I'm looking for a solution to serialize (and unserialize) Javascript objects to a string across browsers, including ... but it's FF specific. See Question&Answers more detail:os...

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How to get available wifi network name in iOS using swift

I want to get all the WiFi networks available in a region and their SSID value. But the problem is how to get ... if I am not connected to one. See Question&Answers more detail:os...

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python - Keras LSTM input dimension setting

I was trying to train a LSTM model using keras but I think I got something wrong here. I got an error of ... point out where I was wrong here? See Question&Answers more detail:os...

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python - int object is not iterable?

inp = int(input("Enter a number:")) for i in inp: n = n + i; print (n) ... throws an error: 'int' object ... + 0 = 2. How do I do that? Thanks See Question&Answers more detail:os...

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android - How to convert milliseconds to date in SQLite

I store date from Calendar.getTimeInMilliseconds() in SQLite DB. I need to mark first rows by every month in SELECT ... . How can I avoid this? See Question&Answers more detail:os...

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c# - Why can't I use the array initializer with an implicitly typed variable?

Why can't I use the array initializer with an implicitly typed variable? string[] words = { "apple", " ... ? What is the rationale here? See Question&Answers more detail:os...

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c# - Resharper: vars

Why does Resharper want you to change most variables to var type instead of the actual type in the code? See Question&Answers more detail:os...

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multithreading - C# Thread object lifetime

Suppose I have a code as follows: int Main() { if (true) { new Thread(()=> { doSomeLengthyOperation(); }) ... code above is. Thanks in advance! See Question&Answers more detail:os...

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How do I create then use long Windows paths from Perl?

I have part of a build process that creates a hideously long paths in Windows. It's not my fault. It's several ... does what it says on the tin. See Question&Answers more detail:os...

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Capture AJAX response with selenium and python

I click on a link in Firefox, the webpage sends a request using javascript, then the server sends some ... capture the response from server. See Question&Answers more detail:os...

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

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