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How can I remove duplicate rows?
...case you have a GUID instead of an integer, you can replace
MIN(RowId)
with
CONVERT(uniqueidentifier, MIN(CONVERT(char(36), MyGuidColumn)))
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How do I check if a Sql server string is null or empty
I want to check for data, but ignore it if it's null or empty. Currently the query is as follows...
18 Answers
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How to replace an item in an array with Javascript?
Each item of this array is some number.
24 Answers
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How to check what user php is running as?
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If available you can probe the current user account with posix_geteuid and then get the user name with posix_getpwuid.
$username = posix_getpwuid(posix_geteuid())['name'];
If you are running in safe mode however (which is often the case when exec is disabled), then it's unl...
How to join (merge) data frames (inner, outer, left, right)
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By using the merge function and its optional parameters:
Inner join: merge(df1, df2) will work for these examples because R automatically joins the frames by common variable names, but you would most likely want to specify merge(df1, df2, by = "CustomerId"...
How to run Rake tasks from within Rake tasks?
... # ...
end
If you'd rather stick to rake's idioms, here are your possibilities, compiled from past answers:
This always executes the task, but it doesn't execute its dependencies:
Rake::Task["build"].execute
This one executes the dependencies, but it only executes the task if
it has not alrea...
Setting background-image using jQuery CSS property
I have an image URL in a imageUrl variable and I am trying to set it as CSS style, using jQuery:
11 Answers
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How to find the mime type of a file in python?
...hod suggested by toivotuo is outdated. Python-magic's current trunk is at Github and based on the readme there, finding the MIME-type, is done like this.
# For MIME types
import magic
mime = magic.Magic(mime=True)
mime.from_file("testdata/test.pdf") # 'application/pdf'
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How do I replace all line breaks in a string with elements?
How can I read the line break from a value with JavaScript and replace all the line breaks with <br /> elements?
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Scrollable Menu with Bootstrap - Menu expanding its container when it should not
I tried this method ( their fiddle ) to enable scrollable menu with Bootstrap, but with that approach, the scrollable menu expands its container -- fiddle -- the non-scrollable menu, correctly, does not do this.
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