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sql primary key and index
...et as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
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The JPA hashCode() / equals() dilemma
There have been some discussions here about JPA entities and which hashCode() / equals() implementation should be used for JPA entity classes. Most (if not all) of them depend on Hibernate, but I'd like to discuss them JPA-implementation-neutrally (I am using EclipseLink, by the way).
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Best approach to real time http streaming to HTML5 video client
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EDIT 3: As of IOS 10, HLS will support fragmented mp4 files. The answer
now, is to create fragmented mp4 assets, with a DASH and HLS manifest. > Pretend flash, iOS9 and below and IE 10 and below don't exist.
Everything b...
AppStore - App status is ready for sale, but not in app store
...hanges to 'Ready for Sale' you will get official mail from Apple. The mail itself states that it might take 24 hours before your App is available on AppStore.
If it takes more than days then contact Apple.
Refer below screenshot.
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
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This is a typical bidirectional consistency problem. It is well discussed in this link as well as this link.
As per the articles in the previous 2 links you need to fix your setters in both sides of the bidirectional relationship. An example setter for the One side is in this ...
How do I work around JavaScript's parseInt octal behavior?
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This is a common Javascript gotcha with a simple solution:
Just specify the base, or 'radix', like so:
parseInt('08',10); // 8
You could also use Number:
Number('08'); // 8
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how to remove css property using javascript?
is it possible to remove a CSS property of an element using JavaScript ?
e.g. I have div.style.zoom = 1.2 ,
now i want to remove the zoom property through JavaScript ?
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Sockets: Discover port availability using Java
How do I programmatically determine the availability of a port in a given machine using Java?
10 Answers
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NVIDIA vs AMD: GPGPU performance
I'd like to hear from people with experience of coding for both. Myself, I only have experience with NVIDIA.
10 Answers
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How to COUNT rows within EntityFramework without loading contents?
...ying to determine how to count the matching rows on a table using the EntityFramework.
7 Answers
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