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List of Stored Procedures/Functions Mysql Command Line
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If the user has the privilege of EXECUTE, or else, this will show empty list.
– mjb
Jan 12 '18 at 1:42
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Select where count of one field is greater than one
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So this will return the whole table if it contains more than 2 non null someField values or an empty result set if it doesn't.
– Martin Smith
Sep 14 '10 at 15:52
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How to make overlay control above all other controls?
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If you are using a Canvas or Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
&l...
Real mouse position in canvas [duplicate]
... mouse over a HTML5 canvas, but the only way that it seems to work well is if the canvas is in the position 0,0 (upper left corner) if I change the canvas position, for some reason it doesn't draw like it should. Here is my code.
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Java: how to initialize String[]?
...y storage for the String elements before you can start setting the index.
If you only declare the array (as you did) there is no memory allocated for the String elements, but only a reference handle to errorSoon, and will throw an error when you try to initialize a variable at any index.
As a side...
How to update two tables in one statement in SQL Server 2005?
...ou would need to join across both Table1 and Table2 when you update Table2 if your update query needs the keys from a third table. Regardless of that, you still need to do two separate updates.
– LBushkin
Jan 11 '10 at 20:52
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Programmatically create a UIView with color gradient
...blackColor].CGColor];
[view.layer insertSublayer:gradient atIndex:0];
Swift:
let view = UIView(frame: CGRect(x: 0, y: 0, width: 320, height: 50))
let gradient = CAGradientLayer()
gradient.frame = view.bounds
gradient.colors = [UIColor.white.cgColor, UIColor.black.cgColor]
view.layer.insertSubl...
How to generate an openSSL key using a passphrase from the command line?
First - what happens if I don't give a passphrase? Is some sort of pseudo random phrase used? I'm just looking for something "good enough" to keep casual hackers at bay.
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Pry: show me the stack
...ject name to filter out all the irrelevant rails stack items. For example, if my project name were archie I'd use:
caller.select {|line| line.include? "archie" }
Which gives me the stack trace I'm looking for.
A shorter way would be:
caller.select {|x| x["archie"] }
Which works just as well.
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How to request a random row in SQL?
...ue LIMIT 1
This works in logarithmic time, regardless of the table size, if num_value is indexed. One caveat: this assumes that num_value is equally distributed in the range 0..MAX(num_value). If your dataset strongly deviates from this assumption, you will get skewed results (some rows will appea...