大约有 47,000 项符合查询结果(耗时:0.0734秒) [XML]

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When to use Hadoop, HBase, Hive and Pig?

... Consider that you work with RDBMS and have to select what to use - full table scans, or index access - but only one of them. If you select full table scan - use hive. If index access - HBase. s...
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When would you use delegates in C#? [closed]

...ionString = psConnectionString; } public void UseReader( string psSELECT, DataReaderUser readerUser ) { using ( SqlConnection connection = new SqlConnection( _connectionString ) ) try { SqlCommand command = new SqlCommand( psSELECT, connection ); ...
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How do I return rows with a specific value first?

...to treat boolean expressions as having a numeric value, then you can use: SELECT * FROM `Users` ORDER BY (`city` = 'New York') DESC, `city` share | improve this answer | fo...
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Write a program to find 100 largest numbers out of an array of 1 billion numbers

...ulate this probability. For example, lets assume the numbers were randomly selected uniformly from {0, 1}, the expected value of (i-K)th number (out of i numbers) is (i-k)/i, and chance of a random variable being larger than this value is 1-[(i-k)/i] = k/i. Thus, the expected number of insertions ...
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How to clear all s’ contents inside a parent ?

...t was asked for in the original question -- you should use a more specific selector. – Drew Noakes Aug 10 '11 at 10:48 4 ...
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Google Maps Android API v2 Authorization failure

..., just like me, 90% of the people here really want this answer and not the selected one (although helpful as well) – Kalisky Jan 9 '14 at 11:59 ...
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RecyclerView onClick

... the ViewHolder itself contains all information in regards to what data is selected when the element itself is clicked, then the only responsibility of the container is the display of N elements, rather than that of handling the selection of a specific i-th element out of the N elements. The ListVie...
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Disable spell checking on IntelliJ IDEA

...u can either: Disable spell checking entirely, or Disable spell checking selectively (e.g. just the code), but enable for some others (e.g. comments). I'm on MacOS Webstorm (version 2016.1.2). First thing first, go to the "Inspection" pane like this... Webstorm -> Preferences -> search fo...
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jQuery .on function for future elements, as .live is deprecated [duplicate]

... jQuery's documentation shows you would replace $(selector).live(event, handler) with $(document).on(event, selector, handler) Also you have the option to be more precise and replace $(document) with a selector for a static parent of the element. For example, if you ...
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Getting the IP address of the current machine using Java

...getLocalHost</code> method does not * specify the algorithm used to select the address returned under such circumstances, and will often return the * loopback address, which is not valid for network communication. Details * <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4665...