大约有 1,900 项符合查询结果（耗时：0.0218秒） [XML]
SQL order string as number
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Another way, without using a single cast.
(For people who use JPA 2.0, where no casting is allowed)
select col from yourtable
order by length(col),col
EDIT: only works for positive integers
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Delete a key from a MongoDB document using Mongoose
...collection.update({_id: user._id}, {$unset: {field: 1 }});
Since version 2.0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.save(callback);
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Mockito How to mock and assert a thrown exception?
...j full sample
Dependencies
eu.codearte.catch-exception:catch-exception:2.0
org.assertj:assertj-core:3.12.2
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Can't find Request.GetOwinContext
...t().GetUserManager<ApplicationUserManager>();
it works in Identity 2.0
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Getting Java version at runtime
...1.6.0_23, 1.7.0, 1.7.0_80, 1.8.0_211
Java 9 or higher: 9.0.1, 11.0.4, 12, 12.0.1
Here is a trick to extract the major version: If it is a 1.x.y_z version string, extract the character at index 2 of the string. If it is a x.y.z version string, cut the string to its first dot character, if one exist...
How to run a PowerShell script
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If you are on PowerShell 2.0, use PowerShell.exe's -File parameter to invoke a script from another environment, like cmd.exe. For example:
Powershell.exe -File C:\my_path\yada_yada\run_import_script.ps1
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What is the reason for having '//' in Python? [duplicate]
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// is unconditionally "flooring division", e.g:
>>> 4.0//1.5
2.0
As you see, even though both operands are floats, // still floors -- so you always know securely what it's gonna do.
Single / may or may not floor depending on Python release, future imports, and even flags on which Py...
Android Studio rendering problems
...mine was showing <null>. But I resolved that I updated the gradle to 2.0 and changed the gradle home rebuild the project and restart the studio and now its showing 19...so All set here
– Nipun David
Aug 16 '14 at 12:20
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Extracting the last n characters from a ruby string
...(5).to_s
For ruby 1.9+
"123".split(//).last(5).join("").to_s
For ruby 2.0+, join returns a string
"123".split(//).last(5).join
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Parser for C#
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Works on source code:
CSParser:
From C# 1.0 to 2.0, open-source
Metaspec C# Parser:
From C# 1.0 to 3.0, commercial product (about 5000$)
#recognize!:
From C# 1.0 to 3.0, commercial product (about 900€) (answer by SharpRecognize)
SharpDevelop Parser (answer by Akselsson)...