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PostgreSQL: Difference between text and varchar (character varying)
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There is no difference, under the hood it's all varlena (variable length array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum ...
Nodejs Event Loop
....js architecture in order to write native modules.
What I am posting here is my understanding of node.js and this might be a bit off track as well.
Libev is the event loop which actually runs internally in node.js to perform simple event loop operations. It's written originally for *nix systems. ...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...that the long, convoluted Facebook URLs that we're used to now look like this:
7 Answers
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“for” vs “each” in Ruby
I just had a quick question regarding loops in Ruby. Is there a difference between these two ways of iterating through a collection?
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Which way is best for creating an object in JavaScript? Is `var` necessary before an object property
So far I saw three ways for creating an object in JavaScript. Which way is best for creating an object and why?
8 Answers
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What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
What is the basic difference between the Factory and Abstract Factory Patterns?
19 Answers
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What is SQL injection? [duplicate]
... explain SQL injection? How does it cause vulnerabilities? Where exactly is the point where SQL is injected?
9 Answers
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What is the difference between and ?
What is the difference between <section> and <div> in HTML ? Aren't we defining sections in both cases?
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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
1) When an array is passed as an argument to a method or function, is it passed by reference, or by value?
8 Answers
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What is Rack middleware?
What is Rack middleware in Ruby? I couldn't find any good explanation for what they mean by "middleware".
9 Answers
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