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What is the difference between Factory and Strategy patterns?
...ent strategies based on the persistence medium. If your data is stored locally in XML it would use one strategy. If the data were remote in a different database, it would use another.
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Is it possible to dynamically compile and execute C# code fragments?
...gments to a text file (or any input stream), and then execute those dynamically? Assuming what is provided to me would compile fine within any Main() block, is it possible to compile and/or execute this code? I would prefer to compile it for performance reasons.
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Programming with white text on black background?
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It's actually white on black, or rather green or amber on black, that is the traditional way. I've used them all. :)
I believe that the use of black on white started in word processors, because it's a lot easier on your eyes when you...
Convert data.frame columns from factors to characters
I have a data frame. Let's call him bob :
18 Answers
18
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fatal: Not a valid object name: 'master'
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So, what if I never wanted a branch-pointer called "master" at all? What if I wanted it to be called "main"? There's no way to start off with a different name for the first branch-pointer? No "git init" parameters? Could I maybe go change the name listed in .git/HEAD? A...
Using current time in UTC as default value in PostgreSQL
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I can see a funciton like now_utc() really shines when writing queries
– misaxi
Nov 1 '15 at 7:04
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What is the difference between RDF and OWL? [closed]
...erence between RDF and OWL. Is OWL an extension of RDF or these two are totally different technologies?
12 Answers
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Query to list number of records in each table in a database
... i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
WHERE
t.NAME NOT LIKE 'dt%' AND
i.OBJECT_ID > 255 AND
i.index_id <= 1
GROUP BY
t.NAME, i.object_id, i.index_id, i.name, p.[Rows]
ORDER BY
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Self-references in object literals / initializers
...some kind of one time initialization of the object.
Note that you are actually assigning the return value of init() to foo, therefore you have to return this.
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How to unit test abstract classes: extend with stubs?
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Write a Mock object and use them just for testing. They usually are very very very minimal (inherit from the abstract class) and not more.Then, in your Unit Test you can call the abstract method you want to test.
You should test abstract class that contain some logic like all other ...