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Mysql - How to quit/exit from stored procedure

... CREATE PROCEDURE SP_Reporting(IN tablename VARCHAR(20)) proc_label:BEGIN IF tablename IS NULL THEN LEAVE proc_label; END IF; #proceed the code END; share | i...
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What is a “callback” in C and how are they implemented?

...lt;string.h> typedef struct { int iValue; int kValue; char label[6]; } MyData; int cmpMyData_iValue (MyData *item1, MyData *item2) { if (item1->iValue < item2->iValue) return -1; if (item1->iValue > item2->iValue) return 1; return 0; } int cmpMyData_kV...
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File input 'accept' attribute - is it useful?

...1em; } <h1>Match all image files (image/*)</h1> <p><label>image/* <input type="file" accept="image/*"></label></p> <h1>Match all video files (video/*)</h1> <p><label>video/* <input type="file" accept="video/*"></label&g...
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QLabel: set color of text and background

How do I set color of text and background of a QLabel ? 6 Answers 6 ...
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React ignores 'for' attribute of the label element

In React (Facebook's framework), I need to render a label element bound to a text input using the standard for attribute. ...
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How do I bind to list of checkbox values with AngularJS?

...case. With a simple array as input data The HTML could look like: <label ng-repeat="fruitName in fruits"> <input type="checkbox" name="selectedFruits[]" value="{{fruitName}}" ng-checked="selection.indexOf(fruitName) > -1" ng-click="toggleSelection(fruitName)" ...
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How to add a touch event to a UIView?

... UIView! @IBOutlet weak var rotateView: UIView! @IBOutlet weak var label: UILabel! override func viewDidLoad() { super.viewDidLoad() // Tap let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap)) tapView.addGesture...
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Concurrent vs serial queues in GCD

... func doLongAsyncTaskInSerialQueue() { let serialQueue = DispatchQueue(label: "com.queue.Serial") for i in 1...5 { serialQueue.async { if Thread.isMainThread{ print("task running in main thread") }else{ print("task running in...
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How do I update the GUI from another thread?

Which is the simplest way to update a Label from another Thread ? 47 Answers 47 ...
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Tools for making latex tables in R [closed]

...Using Booktabs First, load packages and define my clean function <<label=first, include=FALSE, echo=FALSE>>= library(xtable) library(plyr) cleanf <- function(x){ oldx <- c(FALSE, x[-1]==x[-length(x)]) # is the value equal to the previous? ...