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Is there a performance impact when calling ToList()?
...forming queries against a data source for example a Database using LINQ to SQL then the cost of doing ToList is much more because when you use ToList with LINQ to SQL instead of doing Delayed Execution i.e. load items when needed (which can be beneficial in many scenarios) it instantly loads items f...
Disable ALL CAPS menu items in Visual Studio 2013
... (subtly different from what you get with SuppressUppercaseConversion: the SQL menu gets renamed to Sql)
or hide it completely (and have it appear on ALT key press or mouse over)
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How to change the name of a Django app?
...<oldAppName>_modelName RENAME TO <newAppName>_modelName. For mysql too I think it is the same (as mentioned by @null_radix)
(For Django >= 1.7) Update the django_migrations table to avoid having your previous migrations re-run: UPDATE django_migrations SET app='<NewAppName>' WHE...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...如有差错，还请见谅！
开始之前的准备
正如C语言教程从 hello world 开始，我们也由一个 crackme 说开去。本文的例子程序你可以到这来下载:
http://www.crackmes.de/users/veneta/crackmes/linux_crackme_v2 。古人云“工欲善其事，必先...
Difference between WebStorm and PHPStorm
...or, JavaScript Editor) and adds full-fledged support for PHP and Databases/SQL.
Their forum also has quite few answers for such question.
Basically: PhpStorm = WebStorm + PHP + Database support
WebStorm comes with certain (mainly) JavaScript oriented plugins bundled by default while they need ...
Appropriate datatype for holding percent values?
... Scale & Precision: http://msdn.microsoft.com/en-us/library/aa258832%28SQL.80%29.aspx
0 to 1 vs 0 to 100: C#: Storing percentages, 50 or 0.50?
Decimal vs Numeric: Is there any difference between DECIMAL and NUMERIC in SQL Server?
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How to use an existing database with an Android application [duplicate]
I have already created an SQLite database. I want to use this database file with my Android project. I want to bundle this database with my application.
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Eager load polymorphic
...able alone, since multiple tables represent the other end of the join, and SQL, as far as I know, does not allow you join a table named by the value stored in a column. By defining the extra relationship belongs_to :shop, you are giving ActiveRecord the information it needs to complete the join.
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Use email address as primary key?
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@onedaywhen: Yep! Otherwise why would SQL support cascading updates?
– Bill Karwin
Sep 27 '10 at 17:52
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How to sort objects by multiple keys in Python?
...der.
This means that the equivalent of ORDER BY name ASC, age DESC (using SQL notation) for a list of dictionaries can be done like this:
items.sort(key=operator.itemgetter('age'), reverse=True)
items.sort(key=operator.itemgetter('name'))
Note how the items are first sorted by the "lesser" attri...