大约有 16,400 项符合查询结果(耗时:0.0290秒) [XML]

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delete_all vs destroy_all?

I am looking for the best approach to delete records from a table. For instance, I have a user whose user ID is across many tables. I want to delete this user and every record that has his ID in all tables. ...
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Callback of .animate() gets called twice jquery

Since I added some scrollTop -animation, some parts of my callback get called twice: 2 Answers ...
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What are “decorators” and how are they used?

I'm curious what exactly decorators are in AngularJS. There isn't much information online for decorators save for a blurb in the AngularJS documentation and a brief (albeit interesting) mention in a youtube video . ...
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How to assign an exec result to a sql variable?

...ck error status. If you need to pass back one value I'd use an output parameter. sample stored procedure, with an OUTPUT parameter: CREATE PROCEDURE YourStoredProcedure ( @Param1 int ,@Param2 varchar(5) ,@Param3 datetime OUTPUT ) AS IF ISNULL(@Param1,0)>5 BEGIN SET @Par...
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Custom sort function in ng-repeat

I have a set of tiles that display a certain number depending on which option is selected by the user. I would now like to implement a sort by whatever number is shown. ...
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What is the significance of initializing direction arrays below with given values when developing ch

I am new to competitive programming, and I noticed frequently, many of the great coders have these four lines in their code (particularly in those involving arrays): ...
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Add subdomain to localhost URL

I am writing an web application that behaves differently depending on a url prefix. The format is something like: 5 Answers...
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How to get thread id from a thread pool?

I have a fixed thread pool that I submit tasks to (limited to 5 threads). How can I find out which one of those 5 threads executes my task (something like "thread #3 of 5 is doing this task")? ...
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A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception pro

What does this mean and how to resolve it? 3 Answers 3 ...
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How do I query using fields inside the new PostgreSQL JSON datatype?

I am looking for some docs and/or examples for the new JSON functions in PostgreSQL 9.2. 3 Answers ...