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What’s the difference between ScalaTest and Scala Specs unit test frameworks?
...iven Development) capable unit test frameworks for Scala written in Scala. And Specs is built upon may also involve the ScalaTest framework. But what does Specs offer ScalaTest doesn't? What are the differences?
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how can I Update top 100 records in sql server
...e the top 100 records in SQL Server. I have a table T1 with fields F1 and F2 . T1 has 200 records. I want to update the F1 field in the top 100 records. How can I update based on TOP 100 in SQL Server?
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Using the field of an object as a generic Dictionary key
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By default, the two important methods are GetHashCode() and Equals(). It is important that if two things are equal (Equals() returns true), that they have the same hash-code. For example, you might "return FooID;" as the GetHashCode() if you want that as the match. You can also im...
How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
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You are so close! All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields:
SELECT tt.*
FROM topten tt
INNER JOIN
(SELECT home, MAX(datetime) AS MaxDateTime
FROM topten
GROUP BY home) groupedtt
ON tt.home = groupe...
jQuery, get html of a whole element [duplicate]
...un when append is called. It might cause problems.
– Andrej
Feb 13 '14 at 16:17
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How to make a query with group_concat in sql server [duplicate]
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What's the reason for using PATH(''), TYPE and .value('.', 'NVARCHAR(MAX)') here, as opposed to simple PATH('') as in @AmitSingh's asnwer? Your variant yields a way, way heavier execution plan, does it have some hidden advantage to justify the cost? If not, would you ...
How do I erase an element from std::vector by index?
I have a std::vector, and I want to delete the n'th element. How do I do that?
15 Answers
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Remove whitespaces inside a string in javascript
...ered May 29 '12 at 13:43
Henrik AnderssonHenrik Andersson
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detach all packages while working in R
...nly names(sessionInfo()$loadedOnly) to explicitly attached packages first, and then detach the packages, as so.
lapply(names(sessionInfo()$loadedOnly), require, character.only = TRUE)
invisible(lapply(paste0('package:', names(sessionInfo()$otherPkgs)), detach, character.only=TRUE, unload=TRUE, force...
Most underused data visualization [closed]
Histograms and scatterplots are great methods of visualizing data and the relationship between variables, but recently I have been wondering about what visualization techniques I am missing. What do you think is the most underused type of plot?
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