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Check if database exists in PostgreSQL using shell
...ue be 0 if the DB does not exist and 1 if it does; or ... | grep 1 for the opposite behavior
– acjay
Jun 20 '13 at 5:49
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Is there an MD5 Fixed Point where md5(x) == x?
...ossible input" - and this is easier than to try every hash, how? Quite the opposite, since several possible inputs may hash into the same output.
– Piskvor left the building
Jun 3 '09 at 19:39
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How to convert an IPv4 address into a integer in C#?
...s into an Integer. Bonus points available for a function that will do the opposite.
21 Answers
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How do I sort a list by different parameters at different timed
...Multiplying by -1 reverses the result, which is the idea of decending (the opposite of the usual ascending order), while leaving it as zero if they were equal.
– Yishai
Dec 4 '13 at 14:05
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Is an HTTPS query string secure?
...n a bad 3rd party browser toolbar or an external image/flash from an HTTPS site won't leak it.
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How does the Amazon Recommendation feature work?
... be treated similarly to another stream of basket analysis data
Referral sites (identification of where you came in from can hint other items of interest)
Dwell times (how long before you click back and pick a different item)
Ratings by you or those in your social network/buying circles - if y...
C# Lambda expressions: Why should I use them?
...nd can be used everywhere an anonymous delegate can be used. However, the opposite is not true; lambda expressions can be converted to expression trees which allows for a lot of the magic like LINQ to SQL.
The following is an example of a LINQ to Objects expression using anonymous delegates then...
Best way to use Google's hosted jQuery, but fall back to my hosted library on Google fail
...');
}
Though I must say, I'm not sure that if this is a concern for your site visitors you should be fiddling with the Google AJAX Libraries API at all.
Fun fact: I tried initially to use a try..catch block for this in various versions but could not find a combination that was as clean as this. I...
How do I convert Long to byte[] and back in java
...ary like Guava in the vast majority of cases. And if you have some strange opposition to libraries, you should probably consider this answer first for native java solutions. I think the main thing my answer really has going for it is that you don't have to worry about the endian-ness of the system y...
What is the difference between XML and XSD?
...erpreted, while XML does not.
An XSD document is validated as XML, but the opposite may not always be true.
XSD is better at catching errors than XML.
An XSD defines elements that can be used in the documents, relating to the actual data with which it is to be encoded.
for eg:
A date that is ...