大约有 8,600 项符合查询结果(耗时:0.0215秒) [XML]

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Select distinct values from a table field

...with distinct by using order_by() with no parameters. It's in the QuerySet API docs under order_by() "If you don’t want any ordering to be applied to a query, not even the default ordering, call order_by() with no parameters." – Mark Mikofski Aug 24 '14 at 7:...
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Heroku error: “Permission denied (public key)”

... This could also indicate API issues. Make sure to check https://status.heroku.com share | improve this answer | follow ...
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How to compare arrays in JavaScript?

...ole.warn("Overriding existing Array.prototype.equals. Possible causes: New API defines the method, there's a framework conflict or you've got double inclusions in your code."); // attach the .equals method to Array's prototype to call it on any array Array.prototype.equals = function (array) { /...
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Recommended way to stop a Gradle build

... I usually throw the relevant exception from the org.gradle.api package, for example InvalidUserDataException for when someone has entered something invalid, or GradleScriptException for more general errors. If you want to stop the current task or action, and move on to the next, you...
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Microsoft CDN for jQuery or Google CDN? [closed]

...verage: Simply because it's used more (it's been around longer) ajax.googleapis.com is likely to be returned by DNS sooner than ajax.microsoft.com, simply because the local DNS server was more likely to get a request for it (this is a first user in the area penalty). This is a very minor thing and ...
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Detect Windows version in .net

...ou are doing Windows 7 specific features, you should look at the Windows® API Code Pack for Microsoft® .NET Framework. It contains a CoreHelpers class that let you determine the OS you are currently on (XP and above only, its a requirement for .NET nowaday) It also provide multiple helper method...
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Using Rails 3.1, where do you put your “page specific” JavaScript code?

...ery //= require jquery_ujs //= require_directory . //= require_directory ./api //= require_directory ./admin This way, I can create subdirectories, with their own top level JS files, that only include what I need. The keys are: You can remove require_tree - Rails lets you change the assumptions...
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Are there any disadvantages to always using nvarchar(MAX)?

...s with TEXT types, when they are distinct as it gets (completely different API to manipulate, different storage etc). It fails to mention the actual differences: no index, no online operations on MAX types – Remus Rusanu Aug 25 '11 at 15:53 ...
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How to generate the JPA entity Metamodel?

...rit of type safety associated with the CriteriaQuery JPA 2.0 also has an API to support Metamodel representation of entities. ...
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What does 'useLegacyV2RuntimeActivationPolicy' do in the .NET 4 config?

...ute basically lets you say, “I have some dependencies on the legacy shim APIs. Please make them work the way they used to with respect to the chosen runtime.” Why don’t we make this the default behavior? You might argue that this behavior is more compatible, and makes porting code from previo...