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MySql: Tinyint (2) vs tinyint(1) - what is the difference?

...several mysql clients (navicat, sequel pro). It does not mean anything AT ALL! I ran a test, all above clients or even the command-line client seems to ignore this. But, display width is most important if you are using ZEROFILL option, for example your table has following 2 columns: A tinyint(2) ...
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ruby inheritance vs mixins

...odules don’t have instances. It follows that entities or things are generally best modeled in classes, and characteristics or properties of entities or things are best encapsulated in modules. Correspondingly, as noted in section 4.1.1, class names tend to be nouns, whereas module names are oft...
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MongoDB/NoSQL: Keeping Document Change History

... changes to one or more specific entities in a database. I've heard this called row versioning, a log table or a history table (I'm sure there are other names for it). There are a number of ways to approach it in an RDBMS--you can write all changes from all source tables to a single table (more of...
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Is there a MySQL option/feature to track history of changes to records?

...ant to audit the changes to the data - who did what and when?", you can usually use audit tables (as per the trigger example Keethanjan posted). I'm not a huge fan of triggers, but it has the great benefit of being relatively painless to implement - your existing code doesn't need to know about the ...
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Remove all the children DOM elements in div

...by references from other JS objects. For example: a gfx surface references all its children, a group references all its children too, and so on. Deleting just DOM nodes is not enough. – Eugene Lazutkin Jul 2 '13 at 22:16 ...
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How to handle WndProc messages in WPF?

... Actually, as far as I understand such a thing is indeed possible in WPF using HwndSource and HwndSourceHook. See this thread on MSDN as an example. (Relevant code included below) // 'this' is a Window HwndSource source = HwndSou...
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Convert object string to JSON

... the link below : http://msdn.microsoft.com/es-es/library/ie/cc836466%28v=vs.94%29.aspx var jsontext = '{"firstname":"Jesper","surname":"Aaberg","phone":["555-0100","555-0120"]}'; var contact = JSON.parse(jsontext); and reverse var str = JSON.stringify(arr); ...
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What is the template binding vs binding?

... Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Bhargav Rao♦ Mar 11 '16 at 16:25 ...
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Token Authentication vs. Cookies

...tuations. Ember.js, however, deals also with these issues for you; specifically ember-data is built with this in mind. In conclusion, Ember.js is a framework designed for stateful clients. Ember.js does not work like a typical stateless web app where the session, the state and the corresponding cook...
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Git fast forward VS no fast forward merge

Git merge allow us to perform fast forward and no fast fast forward branch merging. Any ideas when to use fast forward merge and when to use no fast forward merge? ...