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Difference between shadowing and overriding in C#?
...accessibility and signature (e.g. parameter types and return). See http://www.geekinterview.com/question_details/19331 .
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How can I link to a specific glibc version?
...sing a glibc-new => glibc-old cross-compiler.
According to the http://www.trevorpounds.com blog post Linking to Older Versioned Symbols (glibc), it is possible to to force any symbol to be linked against an older one so long as it is valid by using the the same .symver pseudo-op that is used fo...
Why are my basic Heroku apps taking two seconds to load?
...Robinson's answer to "Scalability: How Does Heroku Work?" on Quora: http://www.quora.com/Scalability/How-does-Heroku-work
Heroku divides up server resources among many different customers/applications. Your app is allotted blocks of computing power. Heroku partitions based on resource demand. When ...
postgresql COUNT(DISTINCT …) very slow
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I found this thread on www.postgresql.org which discusses the same thing: link. One of the replies (by Jeff Janes) says that COUNT(DISTINCT()) sorts the table to do its work instead of using hash.
– Ankur
Dec ...
Sequelize.js: how to use migrations and sync
... sequelize db:migrate && sequelize db:seed:all && node bin/www",
"start": "sequelize db:migrate && sequelize db:seed:all && node bin/www"
},
...
The only thing I need to do on production server is npm start. This command will run all migrations, apply all seeders ...
Node.js: Difference between req.query[] and req.params
....get('/hi/:param1', function(req,res){} );
and given this URL
http://www.google.com/hi/there?qs1=you&qs2=tube
You will have:
req.query
{
qs1: 'you',
qs2: 'tube'
}
req.params
{
param1: 'there'
}
Express req.params >>
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...JavaScript History API that was introduced alongside HTML5. For a URL like www.example.com/ajax.html#!key=value, Google will check the URL www.example.com/ajax.html?_escaped_fragment_=key=value to fetch a non-AJAX version of the contents.
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How to return result of a SELECT inside a function in PostgreSQL?
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Hi please check the below link
https://www.postgresql.org/docs/current/xfunc-sql.html
EX:
CREATE FUNCTION sum_n_product_with_tab (x int)
RETURNS TABLE(sum int, product int) AS $$
SELECT $1 + tab.y, $1 * tab.y FROM tab;
$$ LANGUAGE SQL;
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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...this? The text of the page has some java interoperability remarks.
http://www.scala-lang.org/node/128
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Is there a way to force ASP.NET Web API to return plain text?
...straightforward media type formatter that support text mime types.
http://www.asp.net/web-api/overview/formats-and-model-binding/media-formatters
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