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When to use MyISAM and InnoDB? [duplicate]
...updates
No transactional integrity (ACID compliance)
No rollback abilities
4,284,867,296 row limit (2^32) -- This is old default. The configurable limit (for many versions) has been 2**56 bytes.
Maximum of 64 indexes per table
InnoDB Limitations:
No full text indexing (Below-5.6 mysql version)
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How to capture the “virtual keyboard show/hide” event in Android?
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@shiami try newConfig.keyboardHidden == Configuration.KEYBOARDHIDDEN_NO ~Chris
– cimnine
Aug 7 '11 at...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...问大部分的内容，这也是一种加速所有网站CDN的应用。
4．CDN 的工作原理
在描述CDN的实现原理，让我们先看传统的未加缓存服务的访问过程，以便了解CDN缓存访问方式与未加缓存访问方式的差别：
由上图可见，用户访问未...
Is there a “null coalescing” operator in JavaScript?
...t = undefined || "well defined"; // is "well defined"
var whatIWant = 0 || 42; // is 42
var whatIWant = "" || "a million bucks"; // is "a million bucks"
var whatIWant = "false" || "no way"; // is "false"
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The way to check a HDFS directory's size?
...ted in 2.6.0:
hadoop fs -dus [directory]
Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0:
hdfs dfs -du [-s] [-h] URI [URI …]
You can also run hadoop fs -help for more info and specifics.
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Django DB Settings 'Improperly Configured' Error
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264
You can't just fire up Python and check things, Django doesn't know what project you want to wor...
Why does C# disallow readonly local variables?
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One reason is there is no CLR support for a readonly local. Readonly is translated into the CLR...
Best way to concatenate List of String objects? [duplicate]
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Your approach is dependent on Java's ArrayList#toString() implementation.
While the implementa...
How to find controls in a repeater header or footer
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edited Feb 6 '14 at 23:18
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