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Difference between a theta join, equijoin and natural join
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A theta join allows for arbitrary comparison relationships (such as ≥).
An equijoin is a theta join using the equality operator.
A natural join is an equijoin on attributes that have the same name in each relationship.
Additionally,...
What's the difference between git reflog and log?
...eline --graph --decorate.)
git reflog doesn't traverse HEAD's ancestry at all. The reflog is an ordered list of the commits that HEAD has pointed to: it's undo history for your repo. The reflog isn't part of the repo itself (it's stored separately to the commits themselves) and isn't included in pu...
Mimicking sets in JavaScript?
...the list is a little safer with this:
if (Object.prototype.hasOwnProperty.call(obj, A))
// put code here
}
because of potential conflict between built-in methods and/or properties on the base Object like the constructor property.
Sidebar on ES6: The current working version of ECMAScript 6 or s...
Where can I get a list of Ansible pre-defined variables?
...h0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
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How can I select all children of an element except the last child?
How would I select all but the last child using CSS3 selectors?
9 Answers
9
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Resharper- Find all unused classes
...g the "Find Usages" option. Is there any way I can see or get the list of all the unused classes or files in my project ?
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Can multiple different HTML elements have the same ID if they're different elements?
...ntirely possible to have multiple elements with the same ID. It's not generally best practice, but it does have its occasional uses. Everyone seems to cite how would selectors work, well if your going in knowing you'll have conflicting IDs, you use your selectors with a parent, where the IDs under t...
Update all objects in a collection using LINQ
...pose; rather, it's used to iterate over the elements of the collection and allow access to a property so that it can be updated. The only question in my mind would be whether or not the foreach loop could benefit from parallelism using Parallel.ForEach, but that's a different question.
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GRANT EXECUTE to all stored procedures
...llowing command effectively give the user, "MyUser," permission to execute ALL stored procedures in the database?
4 Answers...
How to prevent line break at hyphens on all browsers
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Unlike any other approach, the nobr markup works on all browsers, works even when stylesheets are disabled, and works independently of support to special characters. Is there a real problem with it?
– Jukka K. Korpela
Jan 6 '12 at 22:45
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