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MySQL - why not index every field?
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Indexes take up space in memory (RAM); Too many or too large of indexes and the DB is going to...
SQL select join: is it possible to prefix all columns as 'prefix.*'?
...result set for a list of columns in a scripting language such as Python or PHP.
SELECT '' as table1_dummy, table1.*, '' as table2_dummy, table2.*, '' as table3_dummy, table3.* FROM table1
JOIN table2 ON table2.table1id = table1.id
JOIN table3 ON table3.table1id = table1.id
I realize this doesn't ...
C++, copy set to vector
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Just use the constructor for the vector that takes iterators:
std::set<T> s;
//...
st...
Encode html entities in javascript
...erting everything to HTML entities, even "safe" characters such as "abc", "123"... even the whitespaces
– AJPerez
May 12 '17 at 8:44
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How to get root access on Android emulator?
...an find su and superuser here : http://forum.xda-developers.com/showthread.php?t=682828.
You need to run these commands each time you launch the emulator. You can write a script that launch the emulator and root it.
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Post an empty body to REST API via HttpClient
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Use StringContent or ObjectContent which derive from HttpContent or you can use null as HttpCo...
How does Google's Page Speed lossless image compression work?
... answered Dec 5 '12 at 6:19
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How to read file from relative path in Java project? java.io.File cannot find the path specified
... I think it intends to be FileLoader.
– jamesdeath123
Jan 26 '16 at 2:57
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DateTime format to SQL format using C#
...n as a parameter
eg. 'update tblname set curdate=GETDATE() where colname=123'
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How to play a sound in C#, .NET
... allows to play mp3-files and in-memory wave-files too
player.FileName = "123.mp3";
player.Play();
from http://alvas.net/alvas.audio,samples.aspx#sample6 or
Player pl = new Player();
byte[] arr = File.ReadAllBytes(@"in.wav");
pl.Play(arr);
from http://alvas.net/alvas.audio,samples.aspx#sample7...