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How can you determine how much disk space a particular MySQL table is taking up?
..._name='mytable';
GIGABYTES
SELECT (data_length+index_length)/power(1024,3) tablesize_gb
FROM information_schema.tables
WHERE table_schema='mydb' and table_name='mytable';
GENERIC
Here is a generic query where the maximum unit display is TB (TeraBytes)
SELECT
CONCAT(FORMAT(DAT/POWER(1024,...
What are named pipes?
...tandard default exists (much like port 80 for HTTP, SQL server uses port 1433 in TCP/IP; \\.\pipe\sql\query for a named pipe).
By setting up additional named pipes, you can have multiple DB servers running, each with its own request listeners.
The advantage of named pipes is that it is usually mu...
applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. appli
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453
When waking up i.e. relaunching an app (either through springboard, app switching or URL) applic...
项目管理实践教程二、源代码控制【Source Control Using VisualSVN Server ...
...，其实，我只是看了一些的文章而已，对它也不了解。
3.VisualSVN Server是免费的吗？
回答:
是的，VisualSVN Server是免费的，而VisualSVN是收费的。VisualSVN是SVN的客户端，和Visual Studio集成在一起， VisualSvn Server是SVN的服务器端，包括S...
Creating a UICollectionView programmatically
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365
Header file:--
@interface ViewController : UIViewController<UICollectionViewDataSource,UIC...
How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
...
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Why does HTML5 form-validation allow emails without a dot?
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answered Dec 13 '13 at 18:47
Ali AlaviAli Alavi
1,9591414 silver badges2020 bronze badges
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90后创业四年:曾经觉得不公 后来愿赌服输 - 资讯 - 清泛网 - 专注C/C++及内核技术
...款应用当时霸占了人人网开放平台排行榜第一的位置整整3个月。投资机构也找上来，尽管当时我还是光杆司令一个，没有团队。我觉得飘飘然，创业很容易嘛。这为我后来的创业埋下了很大一个坑，我用了好几年才从这个坑里...
To ternary or not to ternary? [closed]
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83
Totally agree with the first few statements but totally disagree with your example of "improved readability". If you're going for multi-line...
The multi-part identifier could not be bound
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231
You are mixing implicit joins with explicit joins. That is allowed, but you need to be aware of...