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Reason to Pass a Pointer by Reference in C++?
...n fact natural) signature for this would be const T &operator[](size_t index) const. But you could also have T &operator[](size_t index). You could have both at the same time. The latter would let you do things like myArray[jj] = 42. At the same time, you aren't providing a pointer to your d...
Turn off constraints temporarily (MS SQL)
I'm looking for a way to temporarily turn off all DB's constraints (eg table relationships).
5 Answers
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What is the difference between a map and a dictionary?
... terms ("Object" in Javascript, "Hash" in Ruby, "Table" in Lua), but those all have separate meanings in programming too, so I'd avoid them.
See here for more info.
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Chrome's remote debugging (USB debugging) not working for Samsung Galaxy S3 running android 4.3
...DK Tools Only" section) and unzip the content.
Run SDK Manager.exe and install Android SDK platform tools
Open up the Command prompt (simply by pressing the windows button and type in cmd.exe)
Enter the path with ex:
cd c:/downloads/sdk/platform-tools
Open ADB by typing in adb.exe
Run the following ...
Apply pandas function to column to create multiple new columns?
...ol.apply(lambda s: pd.Series({'feature1':s+1, 'feature2':s-1})),
left_index=True, right_index=True)
textcol feature1 feature2
0 0.772692 1.772692 -0.227308
1 0.857210 1.857210 -0.142790
2 0.065639 1.065639 -0.934361
3 0.819160 1.819160 -0.180840
4 0.088212 1.088212 -0.911788
...
How to sleep for five seconds in a batch file/cmd [duplicate]
...allows users to select one item from a list
of choices and returns the index of the selected choice.
Parameter List:
/C choices Specifies the list of choices to be created.
Default list is "YN".
/N Hides the list of choices in the prompt.
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How to delete history of last 10 commands in shell?
..., so negative indices count back from the end of the
history, and an index of '-1' refers to the current 'history
-d' command.
'-d START-END'
Delete the history entries between positions START and END,
inclusive. Positive and negative values for START and END are
...
Storing money in a decimal column - what precision and scale?
...
If you are looking for a one-size-fits-all, I'd suggest DECIMAL(19, 4) is a popular choice (a quick Google bears this out). I think this originates from the old VBA/Access/Jet Currency data type, being the first fixed point decimal type in the language; Decimal on...
What is the current directory in a batch file?
...) gives the full path to the batch file. See robvanderwoude.com/parameters.php for more details.
– deadlydog
Jul 11 '13 at 20:08
6
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How to get the top 10 values in postgresql?
...esc
limit 10
If performance is important (when is it not ;-) look for an index on score.
Starting with version 8.4, you can also use the standard (SQL:2008) fetch first
select *
from scores
order by score desc
fetch first 10 rows only
As @Raphvanns pointed out, this will give you the first...