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Mercurial for Beginners: The Definitive Practical Guide

... so if you only use regexp you don't need any syntax marker. You can add comments with # Example: # python temporary files syntax: glob *.pyc #editor autosaves *~ # temporary data syntax: regexp temp Ignore only applies to unmanaged files (i.e. files that are not already checked in). To igno...
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Is it a good idea to index datetime field in mysql?

... MySQL recommends using indexes for a variety of reasons including elimination of rows between conditions: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html This makes your datetime column an excellent candidate for an index ...
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Is it possible to change icons in Visual Studio 2012?

...he old icons into 2012. Visual Studio Icon Patcher - http://vsip.codeplex.com Long Answer: Doing this with a plugin, for now, is out of the question. I've been unable to find any built-in way to achieve this and the switch to WPF makes it even harder to hack around. This app simply extracts the i...
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What is the most efficient way to store tags in a database?

...implies to me that you'll quite possibly need an intermediary table to overcome the many-to-many obstacle. Something like: Table: Items Columns: Item_ID, Item_Title, Content Table: Tags Columns: Tag_ID, Tag_Title Table: Items_Tags Columns: Item_ID, Tag_ID It might be that your web app is very ...
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Rails: Check output of path helper from console

... Just in a follow up of my own comment, seems this is possible from rails 3 console, in case you're using. First, stick a fake request into your app object, by calling something like app.get "/" then just instance_eval the wanted methods, as they are no...
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How to convert a ruby hash object to JSON?

... edited May 23 '17 at 12:34 Community♦ 111 silver badge answered Jul 6 '10 at 6:40 Mladen JablanovićMla...
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@Basic(optional = false) vs @Column(nullable = false) in JPA

... Gordon Yorke (EclipseLink Architecture Committee Member, TopLink Core Technical Lead, JPA 2.0 Expert Group Member) wrote a good answer on this topic so instead of paraphrasing him, I'll quote his answer: The difference between optional and nullable is the sc...
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Find directory name with wildcard or similar to “like”

I am using the following command to find a directory name. 1 Answer 1 ...
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When does Java's Thread.sleep throw InterruptedException?

...arn of the interruption and respond to it if it wants to. This task is accomplished by calling interrupt() to "reinterrupt" the current thread, as shown in Listing 3. At the very least, whenever you catch InterruptedException and don't rethrow it, reinterrupt the current thread before return...
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How do I search within an array of hashes by hash values in ruby?

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