大约有 13,000 项符合查询结果(耗时:0.0207秒) [XML]

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Generate random numbers using C++11 random library

...; } }; thread_local backoff_time_t backoff_time; int main(int argc, char** argv) { double x1 = backoff_time.rand(); double x2 = backoff_time.rand(); double x3 = backoff_time.rand(); double x4 = backoff_time.rand(); return 0; } ~ ...
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Android selector & text color

...or/button_dark_text.xml <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="true" android:color="#000000" /> <!-- pressed --> <item android:state_focused="true" ...
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T-SQL - function with default parameters

... you have to call it like this SELECT dbo.CheckIfSFExists(23, default) From Technet: When a parameter of the function has a default value, the keyword DEFAULT must be specified when the function is called in order to retrieve the default value. T...
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How Do I Get the Query Builder to Output Its Raw SQL Query as a String?

...at: array(1) { [0]=> array(3) { ["query"]=> string(21) "select * from "users"" ["bindings"]=> array(0) { } ["time"]=> string(4) "0.92" } } (Thanks to Joshua's comment below.) ...
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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术

...q_connect (s, "tcp://192.168.0.111:5555"); /* Message routing */ const char data [] = "ABC"; zmq_send (s, data, sizeof (data), 0); 区分拓扑建立和消息路由严格地说不是不可缺少的。毕竟,混合这两个为一个单独的函数是很容易的: zmq_send (s, "tcp://19...
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Creating a copy of a database in PostgreSQL [closed]

... To disconnect all other users from the database, you can use this query: SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity WHERE pg_stat_activity.datname = 'originaldb' AND pid <> pg_backend_pid(); ...
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LINQ: Distinct values

...d it should be okay: var query = doc.Elements("whatever") .Select(element => new { id = (int) element.Attribute("id"), category = (int) element.Attribute("cat") }) .Distinct(); If you're trying to get a dis...
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Entity Framework is Too Slow. What are my options? [closed]

...uct product = db.Products.SingleOrDefault(p => p.Id == 10); // executes SELECT * FROM Products WHERE Id = 10 ProductDto dto = new ProductDto(); foreach (Category category in product.Categories) // executes SELECT * FROM Categories WHERE ProductId = 10 { dto.Categories.Add(new CategoryDto { N...
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Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?

... array with [0] equal to true/false indicating whether or not this date is selectable and 1 equal to a CSS class name(s) or '' for the default presentation. It is called for each day in the datepicker before is it displayed. Display some national holidays in the datepicker. $(".selector").datepick...
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How to remove “Server name” items from history of SQL Server Management Studio

... @JoeBrockhaus Works with 11.0.5058.0. Just open the drop down, move the selection over the name you want deleted, and press the Delete key. If you have multiple entries you can select the entry so the ComboBox closes, check that it is the one you want, then hit the open button on the ComboBox and...