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Remove duplicate rows in MySQL
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A really easy way to do this is to add a UNIQUE index on the 3 columns. When you write the ALTER statement, include the IGNORE keyword. Like so:
ALTER IGNORE TABLE jobs
ADD UNIQUE INDEX idx_name (site_id, title, company);
This will drop all the duplicate rows. As an added benefit...
Enabling HTTPS on express.js
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In express.js (since version 3) you should use that syntax:
var fs = require('fs');
var http = require('http');
var https = require('https');
var privateKey = fs.readFileSync('sslcert/server.key', 'utf8');
var certificate = fs.readFileSync('sslcert/ser...
Node.js: Difference between req.query[] and req.params
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edited Mar 24 '17 at 16:33
answered Jan 19 '13 at 19:37
J...
Eclipse - Unable to install breakpoint due to missing line number attributes
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230
I had the same error message in Eclipse 3.4.1, SUN JVM1.6.0_07 connected to Tomcat 6.0 (running...
Storing sex (gender) in database
... 255 (zero to 255)
INT 4 - 2,147,483,648 to 2,147,483,647
BIT 1 (2 if 9+ columns) 2 (0 and 1)
CHAR(1) 1 26 if case insensitive, 52 otherwise
The BIT data type can be ruled out because it only supports two possible genders whic...
C++ Const Usage Explanation
.../wiki/faq/const-correctness
The final const means that the function Method3 does not modify the non mutable members of its class.
const int* const means a constant pointer to a constant int: i.e. a pointer that cannot be changed, to an int that cannot be changed: the only difference between this a...
How to set cornerRadius for only top-left and top-right corner of a UIView?
....layoutSubviews()
roundCorners(corners: [.topLeft, .topRight], radius: 3.0)
}
If you don't do that it won't show up.
And to round corners, use the extension:
extension UIView {
func roundCorners(corners: UIRectCorner, radius: CGFloat) {
let path = UIBezierPath(roundedRect: bound...
How can I convert string date to NSDate?
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342
try this:
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = /* find out and pl...
How can I reverse a NSArray in Objective-C?
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305
For obtaining a reversed copy of an array, look at danielpunkass' solution using reverseObject...
How to go to an error using only the keyboard in Eclipse?
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324
Windows and Linux
Go to the next error: Ctrl + .
Go to the previous error: Ctrl + ,
Show qui...