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How to convert timestamp to datetime in MySQL?
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select from_unixtime(1300464000,"%Y-%m-%d %h %i %s") from table;
For in details description about
from_unixtime()
unix_timestamp()
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What does |= (single pipe equal) and &=(single ampersand equal) mean
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x |= y;
into
x = x | y;
and the same for &. There's a bit more detail in a few cases regarding an implicit cast, and the target variable is only evaluated once, but that's basically the gist of it.
In terms of the non-compound operators, & is a bitwise "AND" and | is a bitwise "OR"....
Is having an 'OR' in an INNER JOIN condition a bad idea?
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For that UNION will be right. For more details read the following link union-instead-of-or
– Mitul Panchal
Jan 21 '19 at 12:14
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The Definitive C++ Book Guide and List
... about everything in the language in a very accessible format and in great detail. The fifth edition (released August 16, 2012) covers C++11. [Review]
* Not to be confused with C++ Primer Plus (Stephen Prata), with a significantly less favorable review.
Programming: Principles and Practice Using C+...
Add a dependency in Maven
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Can you add more detail regarding the deploy? We have an internal repository, and I want to deploy my local jar installed file to that repository so other developers and our build server will get the jar as well.
– Kiev...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
... "ebs", then you don't have to worry about data on your root device.
More details here: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/RootDeviceStorage.html
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Truncating long strings with CSS: feasible yet?
...ed in Firefox. Check out his guest post on Matt Snider's blog for the full details on how this works.
Note this technique also prevents updating the content of the node in JavaScript using the innerHTML property in Firefox. See the end of this post for a workaround.
CSS
.ellipsis {
white-spac...
PHP Session Security
...sh.
Have sessions time out
Don't use register globals
Store authentication details on the server. That is, don't send details such as username in the cookie.
Check the $_SERVER['HTTP_USER_AGENT']. This adds a small barrier to session hijacking. You can also check the IP address. But this causes prob...
Rails auto-assigning id that already exists
...(default); ERROR: duplicate key value violates unique constraint "t_pkey" DETAIL: Key (id)=(1) already exists.
– Dondi Michael Stroma
Oct 27 '14 at 2:57
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What is better: @SuppressLint or @TargetApi?
..., just in my particular case I'll stick to the workaround. Thanks for this detailed and very understandable explanation -- and at this chance, thanks also for your very helpful web pages which helped me a lot to understand some of the concepts of Android programming! R.
– riche...