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PostgreSQL array_agg order
...om: http://www.postgresql.org/docs/8.4/static/functions-aggregate.html
In the current implementation, the order of the input is in principle unspecified. Supplying the input values from a sorted subquery will usually work, however. For example:
SELECT xmlagg(x) FROM (SELECT x FROM test ORDE...
How do you do natural logs (e.g. “ln()”) with numpy in Python?
Using numpy, how can I do the following:
4 Answers
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How do I programmatically “restart” an Android app?
... I know that one should not really kill/restart an application on Android. In my use case I want to factory-reset my application in a specific case where a server sends a specific information to the client.
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Azure SQL Database Bacpac Local Restore
I've created a BACPAC backup of my Azure SQL Database using the "Export" option within the Azure Management Console.
6 Answ...
Rails: around_* callbacks
...ks.html , but don't understand when the around_* callbacks are triggered in relation to before_* and after_* .
2 Answe...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
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cn.fun123.SQLite.aix
SQLite
SQLite 是 Android 内置的小型、快速、独立的 SQL（结构化查询语言）数据库引擎。
SQL 语句用于创建、选择、更新和删除一个或多个表中的数据。SQL 允许表之间建立复杂的关系，并提供...
Git fails when pushing commit to github
...couple of commits to github without problem. However, now I get the following error:
7 Answers
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How to check if there exists a process with a given pid in Python?
...ere a way to check to see if a pid corresponds to a valid process? I'm getting a pid from a different source other than from os.getpid() and I need to check to see if a process with that pid doesn't exist on the machine.
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Add st, nd, rd and th (ordinal) suffix to a number
I would like to dynamically generate a string of text based on a current day. So, for example, if it is day 1 then I would like my code to generate = "Its the 1* st *".
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Generate URL in HTML helper
Normally in an ASP.NET view one could use the following function to obtain a URL (not an <a> ):
3 Answers
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