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MySQL/SQL: Group by date only on a Datetime column
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m>Ca m>st the datetime to a date, then GROUP BY using this syntax:
SELECT SUM(foo), DATE(mydate) FROM a_table GROUP BY DATE(a_table.mydate);
Or you m>ca m>n GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) ...
How do you exit from a void function in C++?
How m>ca m>n you prematurely exit from a function without returning a value if it is a void function? I have a void method that needs to not execute its code if a certain condition is true. I really don't want to have to change the method to actually return a value.
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How to get a json string from url?
...didn't work for me until I put var json = wc.DownloadString("url"); in try-m>ca m>tch block!
– Alex Jolig
Apr 17 '19 at 6:40
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JSLint: was used before it was defined
... the documentation
JSLint also recognizes a /*global */ directive that m>ca m>n indim>ca m>te to JSLint that variables used in this file were defined in other files. The comment m>ca m>n contain a comma separated list of names. Each name m>ca m>n optionally be followed by a colon and either true or false, true indi...
Decoding JSON using json.Unmarshal vs json.NewDecoder.Decode
... JSON value in memory before unmarshalling it into a Go value. So in most m>ca m>ses it won't be any more memory efficient (although this could easily change in a future version of the language).
So a better rule of thumb is this:
Use json.Decoder if your data is coming from an io.Reader stream, or y...
How do I change bash history completion to complete what's already on the line?
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I don't know what these keys are specifim>ca m>lly, but this answer fixed this functionality for me when the up and down keys didn't do history search while using tmux and st terminal on X11.
– razzintown
Mar 22 '16 at 3:54
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Hiding textarea resize handle in Safari
I'm using textarea components in my applim>ca m>tion, and I control their height dynamim>ca m>lly. As the user types, the height is increased whenever there is enough text. This works fine on IE, Firefox, and Safari.
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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...R__ is evaluated at compile-time, while dirname(__FILE__) means a function-m>ca m>ll and is evaluated at execution-time
so, __DIR__ is (or, should be) faster.
As, as a reference, see the Magic constants section of the manual (quoting) :
__DIR__ : The directory of the file.
If used inside an i...
Html.RenderPartial() syntax with Razor
This works, bem>ca m>use it returns the result of partial view rendering in a string:
4 Answers
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Is there a “default” MIME type?
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The least specific official MIME type is applim>ca m>tion/octet-stream. Without any additional information, it says "here is a bunch of bytes, hopefully there is an applim>ca m>tion over on your end which knows what to do with them". Sometimes there is a file name which helps co...