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With MySQL, how can I generate a column containing the record index in a table?
Is there any way I can get the actual row number from a query?
8 Answers
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Why doesn't JavaScript have a last method? [closed]
... last method to retrieve the last element of an array. I know the solution is simple (Ar[Ar.length-1] ), but, still, this is too frequently used.
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How can I index a MATLAB array returned by a function without first assigning it to a local variable
...le, if I want to read the middle value from magic(5) , I can do so like this:
9 Answers
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Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
...ld override ActionView::Base.field_error_proc. It's currently defined as this within ActionView::Base:
@@field_error_proc = Proc.new{ |html_tag, instance|
"<div class=\"field_with_errors\">#{html_tag}</div>".html_safe
}
You can override it by putting this in your application's c...
Is there a way to iterate over a dictionary?
...o that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ?
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If a folder does not exist, create it
...application. I want to save a file in a specified folder. Now I want, if this folder does not exist, to first create it, and then save my file to this folder. If the folder already exists, then just save the file in it.
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What is the purpose of the Visual Studio Hosting Process?
When debugging a program using Visual Studio you are given the option to Enable the Visual Studio hosting process . What is this purpose of this option and what effect does it have?
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Running SSH Agent when starting Git Bash on Windows
...said session to launch automatically the ssh-agent. If the file doesn't exist, just create it.
This is what GitHub describes in "Working with SSH key passphrases".
The "Auto-launching ssh-agent on Git for Windows" section of that article has a robust script that checks if the agent is running or ...
Simple tool to 'accept theirs' or 'accept mine' on a whole file using git
I don't want a visual merge tool, and I also don't want to have to vi the conflicted file and manually choose the between HEAD (mine) and the imported change (theirs). Most of the time I either want all of their changes or all of mine. Commonly this is because my change made it upsteam and is comi...
How to convert timestamps to dates in Bash?
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On later versions of common Linux distributions you can use:
date -d @1267619929
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