这有效:
myfunc = () ->
id: 3
name: 'myname'
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但我想明确回归对象.
myfunc = () ->
return
id: 3
name: 'myname'
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但是我得到了"意外的'INDENT'"错误.上面的代码有什么问题?
nhibernate代理是否可以执行任何智能工作以使更改跟踪更有效?或者它是否仅支持实体框架基于快照的变更跟踪?
我们可以在同一个集合中拥有{data:"hello"},{data:123},甚至可以在其上创建索引.我很好奇mongodb如何管理幕后的索引.我们不能在不同类型上创建单个B树.对?但是,我使用getIndexes来查看是否创建了另一个索引,但只创建了一个索引.
或者JavaScript仅限于HTML?我在Build 2011中只看过HTML-JavaScript演示
public class City
{
virtual public long Id { get; set; }
virtual public string Name { get; set; }
}
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城市表包含重复的名称,我想删除重复项.我也想通过Id订购结果.
首先我想到了以下查询.
select distinct Name from City order by Id;
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But this breaks with 'ORDER BY items must appear in the select list if SELECT DISTINCT is specified.' exception. After seeing http://weblogs.sqlteam.com/jeffs/archive/2007/12/13/select-distinct-order-by-error.aspx I think I should do:
select Name from City group by Name order by min(Id)
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So my question is how can I do this query with QueryOver?
以下摘录来自英特尔®64和IA-32架构软件开发人员手册,第1卷:基本架构(p.432,http://www.intel.com/Assets/PDF/manual/253665.pdf)
当使用I/O地址空间而不是内存映射I/O时,情况在两个方面有所不同:
•处理器从不缓冲I/O写入.因此,处理器强制执行I/O操作的严格排序.(与存储器映射的I/O一样,芯片组可以在某些I/O范围内发布写入.)
•处理器将I/O指令执行与外部总线活动同步(参见表14-1).
表14-1.I/O指令序列化
------------------+----------------------------------+---------------------------------- | Processor Delays Execution of … | Until Completion of … +---------------+------------------+-----------------+---------------- Instruction Being | Current | Next | | Executed | Instruction? | Instruction? | Pending Stores? | Current Store? ------------------+---------------+------------------+-----------------+---------------- IN | Yes | | Yes | INS | Yes | | Yes | REP INS | Yes | | Yes | OUT | | Yes | Yes | Yes OUTS | | Yes | Yes | Yes REP OUTS …
nhibernate ×2
assembly ×1
coffeescript ×1
indexing ×1
io ×1
javascript ×1
mongodb ×1
windows-8 ×1
x86 ×1
xaml ×1