大约有 9,000 项符合查询结果(耗时:0.0390秒) [XML]

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ASP.NET Identity reset password

... Is there any way to do this directly in SQL? I'd love to hand my DBA a sproc to call when needed instead of an executable. – Mark Richman Feb 24 '15 at 19:19 ...
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MySQL: Fastest way to count number of rows

Which way to count a number of rows should be faster in MySQL? 12 Answers 12 ...
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How the single threaded non blocking IO model works in Node.js

... behavior) most functions that you would use will have callbacks. Edit The SQL query is taken from mysql library. It implements callback style as well as event emitter to queue SQL requests. It does not execute them asynchronously, that is done by the internal libuv threads that provide the abstract...
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Rails 3: Get Random Record

... Thing.first(:order => "RANDOM()") # For MySQL :order => "RAND()", - thanx, @DanSingerman # Rails 3 Thing.order("RANDOM()").first or Thing.first(:offset => rand(Thing.count)) # Rails 3 Thing.offset(rand(Thing.count)).first Actually, in Rails 3 all examples ...
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select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术

...下: 1、select实现 select的调用过程如下所示: (1)使用copy_from_user从用户空间拷贝fd_set到内核空间 (2)注册回调函数__pollwait (3)遍历所有fd,调用其对应的poll方法(对于socket,这个poll方法是sock_poll,sock_poll根据情况会...
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How to allow remote connection to mysql

I have installed MySQL Community Edition 5.5 on my local machine and I want to allow remote connections so that I can connect from external source. ...
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Fastest way to determine if record exists

...sting point. I'm not sure if an Index exists on this field, and my newbish SQL doesn't know how to find out. I am working with this DB from Java via JDBC and the database is remotely located in a colo somewhere. I've only been provided a "database summary" which just details which fields exist in ea...
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Why do loggers recommend using a logger per class?

... code. A good example where this is not the best approach, is Hibernate's SQL logs. There is a shared logger named "Hibernate.SQL" or something like that, where a number of different classes write raw SQL out to a single logger category. ...
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MySQL: Order by field size/length

... @mastazi according to MySQL documentation: OCTET_LENGTH() is a synonym for LENGTH(). – Heitor Oct 1 '17 at 5:35 ...
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Call a stored procedure with parameter in c#

...operly: private void button1_Click(object sender, EventArgs e) { using (SqlConnection con = new SqlConnection(dc.Con)) { using (SqlCommand cmd = new SqlCommand("sp_Add_contact", con)) { cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("@FirstName", SqlDbType.VarC...