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How do I (or can I) SELECT DISTINCT on multiple columns?
...on the same day for the same price. The sales that are unique based on day and price will get updated to an active status.
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How to REALLY show logs of renamed files with git?
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I think that the general drive behind Linus point is that - and take this with a pinch of salt - hardcore git users don't ever care about the history of a "file". You put content in a git repository because the content as a whole has a meaningful history.
A file rename is a small spe...
:: (double colon) operator in Java 8
I was exploring the Java 8 source and found this particular part of code very surprising:
17 Answers
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Kiosk mode in Android
I'm in the process of evaluating if and how a CF .NET enterprise application can be ported to run on Android devices. The application on Windows Mobile phones are run in kiosk mode where the application autostart in fullscreen-mode after booting and with the users unable to accidentally or willingly...
Post parameter is always null
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Pass just the value (i.e. not as a JSON object) and it should work, according to blogs.msdn.com/b/jmstall/archive/2012/04/16/…
– Jim Harte
Jun 12 '12 at 16:19
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Change project name on Android Studio
I want to change the name of my project and module. But if I try to rename them Android Studio notify me some errors...
e.g. I want to change the name from "MyApplication" to "AndroidApp" as shown in the image below.
In the first rectangle I want to change it in:
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How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?
I want to be able to connect to a PostgreSQL database and find all of the functions for a particular schema.
9 Answers
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What's the false operator in C# good for?
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You can use it to override the && and || operators.
The && and || operators can't be overridden, but if you override |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&.
For example, ...
What is the difference between Fragment and FragmentActivity?
... inheritance differences, what are the main differences between Fragment and FragmentActivity ? To what scenarios are each class best suited? I'm trying to get an understanding of why both of these classes exist...
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How to see top processes sorted by actual memory usage?
...asted memory". The Linux kernel keeps around huge amounts of file metadata and files that were requested, until something that looks more important pushes that data out. It's why you can run:
find /home -type f -name '*.mp3'
find /home -type f -name '*.aac'
and have the second find instance run a...