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01_Real Application Clusters Overview - 文档下载 - 清泛网移动版 - 专注C/C++及内核技术
01_Real Application Clusters OverviewOracle-Real-Application-Clusters-Overview01_Real Application Clusters OverviewOracle集群介绍。RAC：真正应用集群Oracle集群介绍
RAC：真正应用集群
ASM管理存储，Oracle自己的文件系统
心跳ip有问题，关闭次节点只留主节...
01_Real Application Clusters Overview - 文档下载 - 清泛网 - 专注C/C++及内核技术
01_Real Application Clusters OverviewOracle-Real-Application-Clusters-Overview01_Real Application Clusters OverviewOracle集群介绍。RAC：真正应用集群Oracle集群介绍
RAC：真正应用集群
ASM管理存储，Oracle自己的文件系统
心跳ip有问题，关闭次节点只留主节...
not None test in Python [duplicate]
...r of the latter two, since val could potentially be of a type that defines __eq__() to return true when passed None.
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How to pip or easy_install tkinter on Windows
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Well I can see two solutions here:
1) Follow the Docs-Tkinter install for Python (for Windows):
Tkinter (and, since Python 3.1, ttk) are included with all standard Python distributions. It is important that you use a version of Python supporting Tk 8.5 or greater, and ttk. We recommend in...
Get the first element of each tuple in a list in Python [duplicate]
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Use a list comprehension:
res_list = [x[0] for x in rows]
Below is a demonstration:
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> [x[0] for x in rows]
[1, 3, 5]
>>>
Alternately, you could use unpacking instead of x[0]:
res_li...
Disable cache for some images
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Please note: You do not actually prevent the browser from caching the image, you only prevent looking at the cached image. Applying proper headers to your image is the best way imho (see the solution of lhunath below). Since this way you also fill the c...
MongoDB with redis
...oDB does not have yet an expiration mechanism. Capped collections cannot really be used to implement a real TTL. Redis has a TTL-based expiration mechanism, making it convenient to store volatile data. For instance, user sessions are commonly stored in Redis, while user data will be stored and index...
Remove excess whitespace from within a string
I receive a string from a database query, then I remove all HTML tags, carriage returns and newlines before I put it in a CSV file. Only thing is, I can't find a way to remove the excess white space from between the strings.
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What's Alternative to Singleton
...singleton in the unit testing because we can test different configurations all at once.
13 Answers
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How to read all files in a folder from Java?
How to read all the files in a folder through Java?
31 Answers
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