大约有 3,500 项符合查询结果（耗时：0.0243秒） [XML]
Using LIMIT within GROUP BY to get N results per group?
...--------------------------------------------------------
| p01 | 2006,2003,2008,2001,2007,2009,2002,2004,2005,2000 |
| p02 | 2001,2004,2002,2003,2000,2006,2007 |
-----------------------------------------------------------
And then you could use FIND_IN_SET, that returns the position...
Best practices for large solutions in Visual Studio (2008) [closed]
We have a solution with around 100+ projects, most of them C#. Naturally, it takes a long time to both open and build, so I am looking for best practices for such beasts. Along the lines of questions I am hoping to get answers to, are:
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SQL query to group by day
... SUM(amount)
FROM
Sales
GROUP BY
saledate
If you're using MS SQL 2008:
SELECT
CAST(created AS date) AS saledate,
SUM(amount)
FROM
Sales
GROUP BY
CAST(created AS date)
share
|
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What is the command to truncate a SQL Server log file?
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truncate_only is deprecated in SQL Server 2008 so you have to switch the db to simple recovery msdn.microsoft.com/en-us/library/ms143729(SQL.90).aspx
– Justin Moore
Dec 15 '10 at 22:14
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How does the Amazon Recommendation feature work?
... papers by the winning team:
R. Bell, Y. Koren, C. Volinsky, "The BellKor 2008 Solution to the Netflix Prize", (2008).
A. Töscher, M. Jahrer, “The BigChaos Solution to the Netflix Prize 2008", (2008).
A. Töscher, M. Jahrer, R. Legenstein, "Improved Neighborhood-Based Algorithms for Large-Scal...
Inserting multiple rows in a single SQL query? [duplicate]
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In SQL Server 2008 you can insert multiple rows using a single SQL INSERT statement.
INSERT INTO MyTable ( Column1, Column2 ) VALUES
( Value1, Value2 ), ( Value1, Value2 )
For reference to this have a look at MOC Course 2778A - Writing ...
Is there a wikipedia API just for retrieve content summary?
... held website, the flagship site of the Stack Exchange Network, created in 2008 by Jeff Atwood and Joel Spolsky, as a more open alternative to earlier Q&A sites such as Experts Exchange. The name for the website was chosen by voting in April 2008 by readers of Coding Horror, Atwood's popular pro...
重构理论及实践——用工厂模式重构c++后台代码 - C/C++ - 清泛网 - 专注C/C...
...可扩展性的价值、重构的节奏、以及思想是王道语言是浮云的道理；用的模式也是最基本的模式，例子也是写书时放在前言之后那5页的入门示例的水平。所以大小牛牛们就可以略过不看啦：）。笔者还想证明&正名，c++可不单单...
C# SQL Server - Passing a list to a stored procedure
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If you're using SQL Server 2008, there's a new featured called a User Defined Table Type. Here is an example of how to use it:
Create your User Defined Table Type:
CREATE TYPE [dbo].[StringList] AS TABLE(
[Item] [NVARCHAR](MAX) NULL
);
Next yo...
一个自媒体的运营手记：我做公众号已经两年多了 - 资讯 - 清泛网 - 专注C/C...
...再牛逼的企业照样无法超越你。想想QQ，想想微信，想想百度，你就会发现，他们那些技术大家都能做出来，但是你做不到他们的那些用户，他们庞大的用户量不是你技术就能做到的，关于这一点很多老板看不清楚。
所以说推...