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“where 1=1” statement [duplicate]
...n you add and value = "Toyota" you don't have to worry about whether there is a condition before or just WHERE. The optimiser should ignore it
No magic, just practical
Example Code:
commandText = "select * from car_table where 1=1";
if (modelYear <> 0) commandText += " and year="+mod...
Can I specify multiple users for myself in .gitconfig?
In my ~/.gitconfig , I list my personal email address under [user] , since that's what I want to use for Github repos.
20...
Why should I care that Java doesn't have reified generics?
This came up as a question I asked in an interview recently as something the candidate wished to see added to the Java language. It's commonly-identified as a pain that Java doesn't have reified generics but, when pushed, the candidate couldn't actually tell me the sort of things that he could hav...
Best way to serialize an NSData into a hexadeximal string
...ocoa way to serialize an NSData object into a hexadecimal string. The idea is to serialize the deviceToken used for notification before sending it to my server.
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How to complete a git clone for a big project on an unstable connection?
...clone process already stopped working, and no way to get it running again. Is there some way to have a more failure-resistant git clone download?
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How do I set a variable to the output of a command in Bash?
I have a pretty simple script that is something like the following:
14 Answers
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How is an HTTP POST request made in node.js?
...g node.js to make a POST request to the Google Compiler API:
// We need this to build our post string
var querystring = require('querystring');
var http = require('http');
var fs = require('fs');
function PostCode(codestring) {
// Build the post string from an object
var post_data = querystrin...
What does “S3 methods” mean in R?
...at ?S3 or ?UseMethod, but in a nutshell:
S3 refers to a scheme of method dispatching. If you've used R for a while, you'll notice that there are print, predict and summary methods for a lot of different kinds of objects.
In S3, this works by:
setting the class of objects of
interest (e.g.: the r...
How to get the IP address of the docker host from inside a docker container
...in/ip route|awk '/default/ { print $3 }'
As @MichaelNeale noticed, there is no sense to use this method in Dockerfile (except when we need this IP during build time only), because this IP will be hardcoded during build time.
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Display HTML snippets in HTML
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is there a tag for don't render HTML until you hit the closing tag?
No, there is not. In HTML proper, there’s no way short of escaping some characters:
& as &amp;
< as &lt;
(Incidentally, there is no need ...