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Fastest way to determine if record exists
...I'm not sure if an Index exists on this field, and my newbish SQL doesn't know how to find out. I am working with this DB from Java via JDBC and the database is remotely located in a colo somewhere. I've only been provided a "database summary" which just details which fields exist in each table, the...
iPhone SDK: what is the difference between loadView and viewDidLoad?
...self.view, then releasing...it seemed somehow awkward, unnecessary. I can now understand why that decision would have led me down the path where I now find myself.
– ryan.scott
Feb 23 '09 at 4:29
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How do I programmatically force an onchange event on an input?
... This is how to do it properly, natively. Supported in all browsers now: caniuse.com/#feat=dispatchevent
– Willem Mulder
Aug 25 '16 at 10:38
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How do you force a CIFS connection to unmount
... the internet connection is down, and anything that touches the CIFS mount now takes several minutes to timeout, and is unkillable while you wait. I can't even run ls in my home directory because there is a symlink pointing inside the CIFS mount and ls tries to follow it to decide what color it sho...
How to make URL/Phone-clickable UILabel?
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Setting the font is now done by: button.titleLabel.font = [UIFont systemFontOfSize:size];
– Leon
Apr 16 '18 at 8:12
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What is the difference between save and insert in Mongo DB?
...e save will do -> It will do normal insertion
upsert to insert.Now in this case as insert() do.
what that means, it means
take the document and replace
the complete document having same
_id.
Let us consider the two cases here for insert:-
1) Having _id of...
OnItemCLickListener not working in listview
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I have been stuck on this for 6 hours now, and I really need help. stackoverflow.com/questions/35108940/why-cant-i-remove-an-item/…
– Ruchir Baronia
Jan 31 '16 at 2:56
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Where can I find and submit bug reports on Google's Chrome browser?
... @JamesWilkins - Whoops, looks like the direct link had my (now expired) token. It should work correctly now.
– Pikamander2
Feb 23 '19 at 6:56
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...mption that char uses less processing power than varchar may be true...for now...but database engines get better over time and this sort of general rule has the making of a future "myth".
Another thing: I have never seen a performance problem because someone decided to go with varchar. You will ma...
Copy Notepad++ text with formatting?
... "Export to HTML" works but not "Copy HTML to clipboard". Do you know why?
– Pacerier
Jul 3 '15 at 9:53
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