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Can table columns with a Foreign Key be NULL?

...d Mar 2 '10 at 21:37 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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How to get device make and model on iOS?

... if I have an iPhone 3GS vs. and iPhone 4 vs. an iPhone 4S (in actuality, all I really want to do is determine if I have a 3G or not, because I'm doing fairly graphics intensive stuff) . ...
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How do I remove/delete a folder that is not empty?

... This doesn't work for me: Traceback (most recent call last): File "foo.py", line 31, in <module> shutil.rmtree(thistestdir) File "/usr/lib/python2.6/shutil.py", line 225, in rmtree onerror(os.rmdir, path, sys.exc_info()) File "/usr/lib/python2.6/shutil.py...
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How to get scrollbar position with Javascript?

...roll position isn't set on document.body in most modern browsers - it's usually set on document.documentElement now. See bugs.chromium.org/p/chromium/issues/detail?id=157855 for Chrome's transition. – fzzfzzfzz May 3 '18 at 15:51 ...
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More elegant “ps aux | grep -v grep”

... brilliant hack (I think I should call it that, since the aux / grep authors probably did not think of this scenario.) – Michael Trouw Apr 12 '16 at 14:12 ...
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Loading local JSON file

... Are you really allowed to access a local file? – maasha Nov 21 '12 at 19:21 4 ...
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What does `unsigned` in MySQL mean and when to use it?

... MySQL says: All integer types can have an optional (nonstandard) attribute UNSIGNED. Unsigned type can be used to permit only nonnegative numbers in a column or when you need a larger upper numeric range for the column. For e...
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How to send HTML-formatted email? [duplicate]

... Setting isBodyHtml to true allows you to use HTML tags in the message body: msg = new MailMessage("xxxx@gmail.com", "yyyy@gmail.com", "Message from PSSP System", "This email sent by the PSSP system<br />" + ...
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How to track child process using strace?

...ously search for the parent thread, then the grandparent thread, and so on all the way to the root process. 4 Answers ...
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Converting a JS object to an array using jQuery

... 2:[Array-Data]}] And $.map() also doesn't look successful. It seams, that all Sub-Array data is merged to one array. array.length should return 2 (because 2 elements exists), but it returns 67 which is the number of all elements in all ["Array-Data"]. – The Bndr ...