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how do I query sql for a latest record date for each user
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select t.username, t.date, t.value
from MyTable t
inner join (
select username, max(date) as MaxDate
from MyTable
group by username
) tm on t.username = tm.username and t.date = tm.MaxDate
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When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
The following figure (from the official doc ) describes the well-known lifecycle of an Android activity:
5 Answers
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Signal handling with multiple threads in Linux
In Linux, what happens when a program (that possibly has multiple threads) receives a signal, like SIGTERM or SIGHUP?
2 Ans...
How to send a GET request from PHP?
I'm planning to use PHP for a simple requirement. I need to download a XML content from a URL, for which I need to send HTTP GET request to that URL.
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Error : BinderProxy@45d459c0 is not valid; is your activity running?
What is this error... i haven't found any discussion on this error in the stackoverflow community Detailed :-
9 Answers
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How to delete .orig files after merge from git repository?
Some how .orig files are checked in my git repository during merge, which are now displayed in modified and un-tracked sector. But I don't want this files anymore in my repository. How to do that.
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Regex to get string between curly braces
Unfortunately, despite having tried to learn regex at least one time a year for as many years as I can remember, I always forget as I use them so infrequently. This year my new year's resolution is to not try and learn regex again - So this year to save me from tears I'll give it to Stack Overflow ...
The transaction manager has disabled its support for remote/network transactions
I'm using SQL Server and ASP.NET. I have the following function:
10 Answers
10
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What do the numbers in a version typically represent (i.e. v1.9.0.1)?
Maybe this is a silly question, but I've always assumed each number delineated by a period represented a single component of the software. If that's true, do they ever represent something different? I'd like to start assigning versions to the different builds of my software, but I'm not really sure...
How to check if a python module exists without importing it
I need to know if a python module exists, without importing it.
13 Answers
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