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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
... where Stage is involved will have cascading delete enabled by default. It means, if you delete a Stage entity
the delete will cascade directly to Side
the delete will cascade directly to Card and because Card and Side have a required one-to-many relationship with cascading delete enabled by defau...
How to make a Bootstrap accordion collapse when clicking the header div?
...tab). Though, I'm not sure which one of the two is better. Try to find the meaning of the tab and button roles and that would give you the answer as to which to choose.
– grim
Jul 28 '15 at 22:16
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Static variables in member functions
...
The keyword static unfortunately has a few different unrelated meanings in C++
When used for data members it means that the data is allocated in the class and not in instances.
When used for data inside a function it means that the data is allocated statically, initialized the first ti...
How to copy an object in Objective-C
...ttle bit more and found that we have to set the object before return it. I mean something like:
#import <Foundation/Foundation.h>
@interface YourObject : NSObject <NSCopying>
@property (strong, nonatomic) NSString *name;
@property (strong, nonatomic) NSString *line;
@property (strong,...
How can jQuery deferred be used?
... documentation says that the parameter is the data returned by the sender) meaning that the member access of .then will error...right? What am I missing?
– chacham15
Dec 7 '14 at 18:53
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How to show method parameter tooltip in C#?
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I don't understand what you mean exactly. But I use this coding for method parameters tooltip.
/// <summary>
/// Do work function
/// </summary>
/// <param name="id">This is user's Id.</param>
/// <param name="name">This ...
Are GUID collisions possible?
...on the PocketPC emulator, and the emulator has a save state feature, which means that every time the state is restored the local time is restored also and the guid is based on on the internal timer....also the guid generating algorithm for compact framework might be less complete than for example th...
Background ListView becomes black when scrolling
...tView.
Note for the note: scrolingCache set to false does not necessarily mean the ListView's animations and scrolling will become slow.
Stretch and scale CSS background
...{
background-image: url(bg.jpg);
background-size: cover;
}
cover means stretching the image either vertically or horizontally so it never tiles/repeats.
That would work for Safari 3 (or later), Chrome, Opera 10+, Firefox 3.6+, and Internet Explorer 9 (or later).
For it to work with low...
Computed / calculated / virtual / derived columns in PostgreSQL
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Well, not sure if this is what You mean but Posgres normally support "dummy" ETL syntax.
I created one empty column in table and then needed to fill it by calculated records depending on values in row.
UPDATE table01
SET column03 = column01*column02; /*e.g. f...