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How to design a product table for many kinds of product where each product has many parameters
...the type hierarchy you describe:
Single Table Inheritance: one table for all Product types, with enough columns to store all attributes of all types. This means a lot of columns, most of which are NULL on any given row.
Class Table Inheritance: one table for Products, storing attributes common to...
Delete commits from a branch in Git
... IN PROGRESS. It will reset you back to the most recent commit, and erase all the changes in your working tree and index.
Lastly, if you need to find a commit that you "deleted", it is typically present in git reflog unless you have garbage collected your repository.
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JavaScript frameworks to build single page applications [closed]
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Looked at Ember early on and had similar thoughts as you about it - I really liked it but it felt like it was still too early to use... about half the tutorials I read didn't work with the current version because something had recently changed in how templating works.
Backbone
Backbone was the f...
CSS :after not adding content to certain elements
...t;button>, <textarea>,
<input>, and <select> tags). All other elements types can be referred
to as non-replaced elements.
:before and :after only work with non-replaced elements.
From the spec:
Note. This specification does not fully define the interaction of
:befor...
How do I discard unstaged changes in Git?
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@KarimSamir: The question specifically asks about changes that are not in the index. The git reset command will discard changes in the index too.
– Greg Hewgill
Apr 12 '15 at 17:28
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How to un-submodule a Git submodule?
What are the best practices for un-submoduling a Git submodule, bringing all the code back into the core repository?
12 Ans...
How and why do I set up a C# build machine? [closed]
I'm working with a small (4 person) development team on a C# project. I've proposed setting up a build machine which will do nightly builds and tests of the project, because I understand that this is a Good Thing. Trouble is, we don't have a whole lot of budget here, so I have to justify the expen...
Why does ASP.NET webforms need the Runat=“Server” attribute?
Why do I have to specify runat="server" on all my ASP.NET controls when it is a mandatory attribute and server is the only option available in my limited knowledge of ASP.NET, and I get an error if I don't use it?
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How to hide reference counts in VS2013?
...n my professional preview. But looking online I found that the feature is called Code Information Indicators or CodeLens, and can be located under
Tools → Options → Text Editor → All Languages → CodeLens
(for RC/final version)
or
Tools → Options → Text Editor → All L...
mysql - how many columns is too many?
...eral rule, your table structure should reflect your domain model; if you really do have 70 (100, what have you) attributes that belong to the same entity there's no reason to separate them into multiple tables.
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