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Find most frequent value in SQL column
How can I find the most frequent value in a given column in an SQL table?
9 Answers
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How to see full query from SHOW PROCESSLIST
...first 100 characters of the running SQL query are returned in the info column.
5 Answers
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Accessing inactive union member and undefined behavior?
....5.2.3 Structure and union members
95) If the member used to read the contents of a union object is not the same as the member last used to
store a value in the object, the appropriate part of the object representation of the value is reinterpreted
as an object representation in the new typ...
How do I query between two dates using MySQL?
...r second date is before your first date (ie. you are querying between September 29 2010 and January 30 2010). Try reversing the order of the dates:
SELECT *
FROM `objects`
WHERE (date_field BETWEEN '2010-01-30 14:15:55' AND '2010-09-29 10:15:55')
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R: Comment out block of code [duplicate]
I want to comment out several lines of code in R. Is there any way of doing it without having to put a # before each line - sort of like /* blocked out code */ in SAS?
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How do I m>ex m>pand a tuple into variadic template function's arguments?
Consider the case of a templated function with variadic template arguments:
13 Answers
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Check whether a cell contains a substring
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Try using this:
=ISNUMBER(SEARCH("Some Tm>ex m>t", A3))
This will return TRUE if cell A3 contains Some Tm>ex m>t.
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LEFT OUTER joins in Rails 3
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edited May 7 '14 at 14:14
John Naegle
7,5...
Ruby: How to get the first character of a string
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You can use Ruby's open classes to make your code much more readable. For instance, this:
class String
def initial
self[0,1]
end
end
will allow you to use the initial method on any string. So if you have the following variables:
last_name = "Smit...
Visual Studio 2012 m>Ex m>press is suddenly “incompatible with this version of Windows”?
I'm running Visual Studio m>Ex m>press 2012 on Windows 7. I've been running it with no problems for several months now.
6 Answe...