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How accurately should I store latitude and longitude?
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Actually, equator is best case. One latitude and one longitude degree are the same size at the equator (69 miles), but one degree of longitude shrinks to zero as it approaches either of the poles. Here's a very nice explanation: nationalatlas.gov/articles/m...
What is Android keystore file, and what is it used for?
... I would provide is that a keystore file is to authenticate yourself to anyone who is asking. It isn't restricted to just signing .apk files, you can use it to store personal certificates, sign data to be transmitted and a whole variety of authentication.
In terms of what you do with it for Android...
Graphical DIFF programs for linux [closed]
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I'd be most grateful if I could get a few pointers to what programs everyone else likes.
13 Answers
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Parse email content from quoted reply
...wrote" or prefix the lines with an angle bracket. Unfortunately, not everyone does this. Does anyone have any idea on how to programmatically detect reply text? I am using C# to write this parser.
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Drag and drop files into WPF
...Present(DataFormats.FileDrop))
{
// Note that you can have more than one file.
string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
// Assuming you have one file that you care about, pass it off to whatever
// handling code you have defined.
HandleFileOpen(files[0]...
How should I log while using multiprocessing in Python?
...l log entries should be timestamped.
Your controller process can then do one of the following:
If using disk files: Coalesce the log files at the end of the run, sorted by timestamp
If using pipes (recommended): Coalesce log entries on-the-fly from all pipes, into a central log file. (E.g., Peri...
Disabling Strict Standards in PHP 5.4
...ue was E_ALL & ~E_NOTICE & ~E_STRICT Should I just enable values one at a time?
5 Answers
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Solutions for INSERT OR UPDATE on SQL Server
...ns provided by @Beau Crawford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
end
else...
Removing multiple keys from a dictionary safely
...s are known (when safety is not an issue), multiple keys can be deleted in one line like this del dict['key1'], dict['key2'], dict['key3']
– Tirtha R
May 3 '18 at 23:24
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When should I use semicolons in SQL Server?
...t have been introduced in recent years. (MERGE too for example). As mentioned in other answers, in the ANSI standard they are required
– Mark Sowul
Jul 28 '17 at 18:16
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