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How to 'insert if not exists' in MySQL?
... exist, it will be created. However, using this method isn’t efficient
for our case: we do not need to overwrite existing records, it’s fine
just to skip them.
Method 2: using INSERT IGNORE Also very simple:
INSERT IGNORE INTO `transcripts`
SET `ensembl_transcript_id` = 'ENSORGT0000000...
Get the current first responder without using a private API
...ten want the first responder to resign if the user taps on the background. For this purpose I wrote a category on UIView, which I call on the UIWindow.
The following is based on that and should return the first responder.
@implementation UIView (FindFirstResponder)
- (id)findFirstResponder
{
i...
What is REST? Slightly confused [closed]
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REST is not a specific web service but a design concept (architecture) for managing state information. The seminal paper on this was Roy Thomas Fielding's dissertation (2000), "Architectural Styles and the Design of Network-based Software Architectures" (available online from the University of ...
How to delete all Annotations on a MKMapView
...u do not need to save any reference to user location. Read my answer below for more info.
– Aviel Gross
Apr 15 '14 at 19:55
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Can I create a One-Time-Use Function in a Script or Stored Procedure?
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You can do a IF EXISTS check before each run and delete if anything is found.
– Adrian Godong
Jun 11 '09 at 14:36
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Comments in Android Layout xml
... "ctrl + shft + /" (that is, hold control and the shift key then press the forward slash key). The comment code will be created with your cursor in the middle, so you can just start typing.
– LeBeau
Mar 30 '14 at 6:21
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putting datepicker() on dynamically created elements - JQuery/JQueryUI
...); syntax means:
Add a listener to ...selector.. (the body in our example) for the event ..event.. ('focus' in our example). For all the descendants of the matching nodes that matches the selector ...another-selector... (.datepicker_recurring_start in our example) , apply the event handler ...callba...
How do I check whether a checkbox is checked in jQuery?
I need to check the checked property of a checkbox and perform an action based on the checked property using jQuery.
66 A...
Input placeholders for Internet Explorer
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In looking at the "Web Forms : input placeholder" section of HTML5 Cross Browser Polyfills, one I saw was jQuery-html5-placeholder.
I tried the demo out with IE9, and it looks like it wraps your <input> with a span and overlays a label with ...
Convert int to ASCII and back in Python
I'm working on making a URL shortener for my site, and my current plan (I'm open to suggestions) is to use a node ID to generate the shortened URL. So, in theory, node 26 might be short.com/z , node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When...