大约有 4,200 项符合查询结果（耗时：0.0226秒） [XML]
Find number of months between two Dates in Ruby on Rails
...and not the average seconds in a month. Downvoting so that others stay bug-free.
– Joe Eifert
Sep 26 '16 at 12:43
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Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
..., controllers or some other inaccessible place). You get the backtrace for free:)
>> raise Rails.root
RuntimeError: /home/marcin/work/github/project1
from (irb):17
>>
I also really encourage you to try ruby-debug:
http://railscasts.com/episodes/54-debugging-with-ruby-debug
http...
How can I create a copy of an Oracle table without copying the data?
...w table with no data when you run it in a sql worksheet
sqldeveloper is a free to use app from oracle.
If the table has sequences or triggers the ddl will sometimes generate those for you too. You just have to be careful what order you make them in and know when to turn the triggers on or off.
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Lightweight Java Object cache API [closed]
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@mxttie: thanks, I've added the link, feel free to suggest an edit for additions like this.
– Joachim Sauer
Nov 4 '19 at 10:56
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Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL [duplicate]
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If you select all the code from a panel in jsfiddle and paste it into the free text editor Notepad++, you should be able to see the problem character as a question mark "?" at the very end of your code. Delete this question mark, then copy and paste the code from Notepad++ and the problem will be g...
Add a column to a table, if it does not already exist
...ISTS. I don't really feel the need to edit the answer for this but do feel free to edit yourself if you think it's an improvement.
– Lieven Keersmaekers
Feb 11 '18 at 13:11
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Multiple arguments to function called by pthread_create()?
...d_create(&tr, NULL, print_the_arguments, (void *)args);
Don't forget free args! ;)
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How do you upload images to a gist?
...images in your Gist url:
upload your image to a place like imgur.com for free, then get the hot-link.
Add a file and give it a markdown extension .md and use markdown image syntax:
?????
Profit
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Why is WinRT unmanaged? [closed]
...ement for IDispatch which got stuck in 1997. You work for Microsoft, feel free to give away some of the secrets here :)
– Hans Passant
Sep 17 '11 at 22:23
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Different ways of clearing lists
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gc is not run in cycles. The list is freed as soon as its last reference is dropped.
– Algorias
May 12 '09 at 4:45
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