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SQL JOIN vs IN performance?
...If it's not, then IN is faster than JOIN on DISTINCT.
See this article in my blog for performance details:
IN vs. JOIN vs. EXISTS
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How to read an external local JSON file in JavaScript?
I have saved a JSON file in my local system and created a JavaScript file in order to read the JSON file and print data out. Here is the JSON file:
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TypeError: 'undefined' is not a function (evaluating '$(document)')
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Actually, what I did was place my normal $(document).ready(function() { // code }); in place of your $(document); ... that worked like a charm.
– dcolumbus
Nov 2 '11 at 4:09
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Writing files in Node.js
... file at once:
var fs = require('fs');
var stream = fs.createWriteStream("my_file.txt");
stream.once('open', function(fd) {
stream.write("My first row\n");
stream.write("My second row\n");
stream.end();
});
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Find size of Git repository
What's a simple way to find the size of my Git repository?
8 Answers
8
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spring boot default H2 jdbc connection (and H2 console)
...ded H2 database which spring-boot creates when I don't specify anything in my application.properties and start with mvn spring:run. I can see hibernate JPA creating the tables but if I try to access the h2 console at the URL below the database has no tables.
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When is layoutSubviews called?
... primary
view)
Resizing a view will call layoutSubviews on its superview
My results - http://blog.logichigh.com/2011/03/16/when-does-layoutsubviews-get-called/
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How to do a regular expression replace in MySQL?
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With MySQL 8.0+ you could use natively REGEXP_REPLACE function.
12.5.2 Regular Expressions:
REGEXP_REPLACE(expr, pat, repl[, pos[, occurrence[, match_type]]])
Replaces occurrences in the string expr that match the regular express...
(this == null) in C#!
...and map that to 'this' and problems with emitted IL :) This is why I added my three cents. Aside of that, I agree with everything else what was found, analyzed and described by you and others:)
– quetzalcoatl
Aug 14 '12 at 1:05
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Why does NULL = NULL evaluate to false in SQL server
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Here I will hopefully clarify my position.
That NULL = NULL evaluate to FALSE is wrong. Hacker and Mister correctly answered NULL.
Here is why. Dewayne Christensen wrote to me, in a comment to Scott Ivey:
Since it's December, let's use a
seasonal e...