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Mac OSX Lion DNS lookup order [closed]
After upgrading to Mac OSX Lion I figured out that /etc/hosts is not looked up in first place for name resolution anymore. This leads to some side effects like:
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Mapping a function on the values of a map in Clojure
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I like it, but is there any reason for the arguments order (besides the question) ? I was expecting [f m] as in map for some reason.
– nha
Aug 21 '16 at 22:48
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Select SQL Server database size
... , RowNum = ROW_NUMBER() OVER (PARTITION BY s.database_name, s.[type] ORDER BY s.backup_finish_date DESC)
FROM msdb.dbo.backupset s
WHERE s.[type] IN ('D', 'L')
) f
WHERE f.RowNum = 1
GROUP BY f.database_name
) bu ON d.name = bu.database_name
ORDER BY t.total_size DE...
How to get values from IGrouping
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Isn't that the same as a normal "orderBy"? List<smth> newList = list .OrderBy(x => x.id).ToList();
– MorgoZ
Apr 22 '16 at 11:42
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SQL Server CTE and recursion example
...loyees
WHERE EmployeeID = cteReports.MgrID) AS Manager
FROM cteReports
ORDER BY EmpLevel, MgrID
The simplest example of a recursive CTE I can think of to illustrate its operation is;
;WITH Numbers AS
(
SELECT n = 1
UNION ALL
SELECT n + 1
FROM Numbers
WHERE n+1 <= 10
)
S...
Rank items in an array using Python/NumPy, without sorting array twice
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Use argsort twice, first to obtain the order of the array, then to obtain ranking:
array = numpy.array([4,2,7,1])
order = array.argsort()
ranks = order.argsort()
When dealing with 2D (or higher dimensional) arrays, be sure to pass an axis argument to argsort to...
Difference between partition key, composite key and clustering key in Cassandra?
...tition key columns, then you can add optionally each clustering key in the order they're set.
so the valid queries are (excluding secondary indexes)
col1 and col2
col1 and col2 and col10
col1 and col2 and col10 and col 4
Invalid:
col1 and col2 and col4
anything that does not contain both col1...
Entity Framework Code First - two Foreign Keys from same table
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public int MatchId { get; set; }
[ForeignKey("HomeTeam"), Column(Order = 0)]
public int? HomeTeamId { get; set; }
[ForeignKey("GuestTeam"), Column(Order = 1)]
public int? GuestTeamId { get; set; }
public float HomePoints { get; set; }
public float GuestPoints { get; se...
How can I select rows with most recent timestamp for each key value?
...SELECT MAX(timestamp) FROM sensorTable s2 WHERE s1.sensorID = s2.sensorID)
ORDER BY sensorID, timestamp;
Pretty self-explaining I think, but here's more info if you wish, as well as other examples. It's from the MySQL manual, but above query works with every RDBMS (implementing the sql'92 standard...
How to sort a list/tuple of lists/tuples by the element at a given index?
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In order to sort a list of tuples (<word>, <count>), for count in descending order and word in alphabetical order:
data = [
('betty', 1),
('bought', 1),
('a', 1),
('bit', 1),
('of', 1),
('butter', 2),
('but', 1),
('...