大约有 9,000 项符合查询结果（耗时：0.0251秒） [XML]
区块链技术到底是什么鬼，为何被疯炒？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...金融机构共同建立了R3CEV联盟,旨在推动制定适合金融机构使用的区块链技术标准,推动技术落地。
区块链很火，但是真正了解它的人有多少呢？
一、什么是区块链？
说到区块链，就不得不说比特币。
2008年底，比特币之父中...
Is there a naming convention for MySQL?
...ul for those who will come here later: launchbylunch.com/posts/2014/Feb/16/sql-naming-conventions/…
– Enissay
Feb 2 '16 at 14:59
1
...
Java to Clojure rewrite
...ramework that builds on top of Ring.
Korma - a very nice DSL for accessing SQL databases.
share
|
improve this answer
|
follow
|
...
炒股是世界难题！历史上那些名人炒股水平 - 轻松一刻 - 清泛网 - 专注C/C++...
...号码，便于人们识别。蒋介石当时的代号是“蒋伟记”，使用的牌号为“恒泰号”，他还是这个牌号下的股东。当时他以极小的4股“恒泰号”进入股市。通过炒作一年内使股价由30元涨至120元，收益翻了四倍；第二年又涨到200元...
Storing Image Data for offline web application (client-side storage database)
...ta"
http://www.aaron-powell.com/web/indexeddb-storage
Note: FireFox uses SQLlite for the NOSQL IndexedDB. That might be the reason for the slow performance. (blobs stored separately)
Note: Microsoft IE uses the extensible storage engine:
http://en.wikipedia.org/wiki/Extensible_Storage_Engine
No...
2016电商“死亡”名单（上半年） - 资讯 - 清泛网 - 专注IT技能提升
...进行了反思：A轮融资后开始盲目扩张，大幅增员，大量使用猎头招聘所谓的行业“大牛”、顶尖技术人才，盲目相信某某大公司背景、相信所谓专业性人才和经验，盲目制定战略，在毫无供应链经验的时候，涉足供应链，大量...
In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
...e, if I'm passing up from my persistence layer, I would like to convert an SQL exception to a persistence exception, since the next layer up shouldn't care that I'm persisting to a SQL database, but will want to know if something could not be persisted. Another technique I use is to create a simple...
Chaining multiple filter() in Django, is this a bug?
...
As you can see in the generated SQL statements the difference is not the "OR" as some may suspect. It is how the WHERE and JOIN is placed.
Example1 (same joined table) :
(example from https://docs.djangoproject.com/en/dev/topics/db/queries/#spanning-mult...
Good example of livelock?
...ple is two competing processes live locking in an attempt to correct for a SQL server deadlock, with each process using the same wait-retry algorithm for retrying. While it's the luck of timing, I have seen this happen on separate machines with similar performance characteristics in response to a me...
Advantage of creating a generic repository vs. specific repository for each object?
...aces, but a base class for the implementations. For example, using LINQ to SQL, you could do:
public abstract class Repository<TEntity>
{
private DataContext _dataContext;
protected Repository(DataContext dataContext)
{
_dataContext = dataContext;
}
protected IQu...