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MySQL: Transactions vs Locking Tables

... confused with transactions vs locking tables to ensure database integrity and make sure a SELECT and UPDATE remain in sync and no other connection interferes with it. I need to: ...
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Can you explain the concept of streams?

I understand that a stream is a representation of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with? ...
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What is the use of interface constants?

I am learning Java and just found that the Interface can have fields, which are public static and final. I haven't seen any examples of these so far. What are some of the use cases of these Interface Constants and can I see some in the Java Standard Library? ...
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master branch and 'origin/master' have diverged, how to 'undiverge' branches'?

Somehow my master and my origin/master branch have diverged. I actually don't want them to diverge. 13 Answers ...
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AngularJS: Understanding design pattern

...pps: Controller Controller should be just an interlayer between model and view. Try to make it as thin as possible. It is highly recommended to avoid business logic in controller. It should be moved to model. Controller may communicate with other controllers using method invocation (possible wh...
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Virtual functions and performance - C++

In my class design, I use abstract classes and virtual functions extensively. I had a feeling that virtual functions affects the performance. Is this true? But I think this performance difference is not noticeable and looks like I am doing premature optimization. Right? ...
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What is recursion and when should I use it?

One of the topics that seems to come up regularly on mailing lists and online discussions is the merits (or lack thereof) of doing a Computer Science Degree. An argument that seems to come up time and again for the negative party is that they have been coding for some number of years and they have n...
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Why is using onClick() in HTML a bad practice?

...e it's not good for semantics. I would like to know what the downsides are and how to fix the following code? 10 Answers ...
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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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Comparison of CI Servers? [closed]

...of different continuous integration (CI) Servers (esp. focusing on .NET) and couldn't find any. 13 Answers ...