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How to execute Python scripts in Windows?
...pplication to handle python files be python.exe.
right click a *.py file, select "Open With" dialog. In there select "python.exe" and check "always use this program for this file type" (something like that).
then your python files will always be run using python.exe
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程序员用数据思维教你如何追女生 - 杂谈 - 清泛网 - 专注C/C++及内核技术
程序员用数据思维教你如何追女生好啦，今天这次IT内部培训，我们不讲编码技术，也不灌鸡汤要求大家加班。今天我们谈一个你们这群单身狗已经掌握却一直没怎么用的技能：追求...
好啦，今天这次IT内部培训，我们不讲编码...
insert multiple rows via a php array into mysql
I'm passing a large dataset into a MySQL table via PHP using insert commands and I'm wondering if its possible to insert approximately 1000 rows at a time via a query other than appending each value on the end of a mile long string and then executing it. I am using the CodeIgniter framework so its f...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...from t_mv_test@dblink_name;
这样，不管数据库A上的此表的主键如何变化，我一概不管。但是，有时必须要使用with primary key，例如跨库跨平台时。
物化视图对应的表上没有主键，如果需要索引可以另行添加。
最后小结一下，这个...
Is there a way to get a collection of all the Models in your Rails app?
....
EDIT: Just for fun, I found a way to list all classes
Module.constants.select { |c| (eval c).is_a? Class }
EDIT: Finally succeeded in listing all models without looking at directories
Module.constants.select do |constant_name|
constant = eval constant_name
if not constant.nil? and constan...
PDB文件：每个开发人员都必须知道的 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...该都知道PDB文件是用来帮助软件的调试的。但是他究竟是如何工作的呢，我们可能并不熟悉。本文描述了PDB文件的存储和内容。同时还描 述了debugger如何找到binay相应的PDB文件，以及debugger如何找到与binay对应的源代码文件。本文...
How to get last N records with activerecord?
...e-wise - at least not up to Rails 3.1. SomeModel.last(5) will execute the select statement without a limit, returning all records of SomeModel to Ruby as an array, after which Ruby will pick out the last (5) elements. Efficiency-wise, currently, you want to use limit - particularly if you have pote...
SQL (MySQL) vs NoSQL (CouchDB) [closed]
...then things like a lot of their messages, comments etc. I have always used MySQL before but now I am minded to try something new like couchdb or similar which is not SQL.
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Is storing a delimited list in a database column really that bad?
Imagine a web form with a set of check boxes (any or all of them can be selected). I chose to save them in a comma separated list of values stored in one column of the database table.
...
List all sequences in a Postgres db 8.1 with SQL
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The following query gives names of all sequences.
SELECT c.relname FROM pg_class c WHERE c.relkind = 'S';
Typically a sequence is named as ${table}_id_seq. Simple regex pattern matching will give you the table name.
To get last value of a sequence use the following query:...