大约有 47,000 项符合查询结果（耗时：0.0380秒） [XML]
Haskell offline documentation?
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Hoogle is available offline, installable from Cabal: http://hackage.haskell.org/package/hoogle
Usage instructions are at http://www.haskell.org/haskellwiki/Hoogle#Command_Line_Search_Flags.
Usage:
$ hoogle --help
Hoogle v4.2.8, (C) Neil Mitchell 2004-2011
http://...
How can I detect if the user is on localhost in PHP?
...erent: Many MySQL Servers are configured so that they can only be accessed from localhost for security reasons.
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jQuery - select the associated label element of a input field [duplicate]
I have a set of input fields, some of them have labels associated, some not:
3 Answers
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How do I query using fields inside the new PostgreSQL JSON datatype?
... a comments below.
The answer to the original question in Postgres 9.3:
SELECT *
FROM json_array_elements(
'[{"name": "Toby", "occupation": "Software Engineer"},
{"name": "Zaphod", "occupation": "Galactic President"} ]'
) AS elem
WHERE elem->>'name' = 'Toby';
Advanced example:
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How to print last two columns using awk
...er. I thought we were discussing where the original old awk behavior came from.
– jim mcnamara
Oct 19 '13 at 15:44
+1...
Code equivalent to the 'let' keyword in chained LINQ extension method calls
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Let doesn't have its own operation; it piggy-backs off of Select. You can see this if you use "reflector" to pull apart an existing dll.
it will be something like:
var result = names
.Select(animalName => new { nameLength = animalName.Length, animalName})
.Where...
Visual Studio “Could not copy” … during build
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From my experience, VS2013 does this at least 10 times a day for me no matter what machine I am developing on. It's like the bug has gotten worse. Just sayin'
– A.R.
May 7 '15 at 21:16...
pycharm running way slow
...blem seems to be a large data folder in the project that should be exclude from inspection.
– jolvi
Jan 30 '19 at 13:22
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Exit single-user mode
...tabase in MULTI_USER mode.
USE master
GO
DECLARE @kill varchar(max) = '';
SELECT @kill = @kill + 'KILL ' + CONVERT(varchar(10), spid) + '; '
FROM master..sysprocesses
WHERE spid > 50 AND dbid = DB_ID('<Your_DB_Name>')
EXEC(@kill);
GO
SET DEADLOCK_PRIORITY HIGH
ALTER DATABASE [<Your_DB...
How can I add comments in MySQL?
...es of commenting are supported
Hash base single line commenting using #
Select * from users ; # this will list users
Double Dash commenting using --
Select * from users ; -- this will list users
Note : Its important to have single white space just after --
3) Multi line commenting using ...