大约有 47,000 项符合查询结果（耗时：0.0848秒） [XML]
How do I perform an IF…THEN in an SQL SELECT?
...
The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server.
SELECT CAST(
CASE
WHEN Obsolete = 'N' or InStock = 'Y'
THEN 1
ELSE 0
END AS bit) as Saleable,...
Changing .gitconfig location on Windows
By default on Windows Git places global .gitconfig in c:\documents and settings\user\
13 Answers
...
How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
...nticate method allowing any lazy collection to be retrieved from the db as and when you try to use them.
share
|
improve this answer
|
follow
|
...
How does the const constructor actually work?
...calized" instance.
That is, all constant expressions begin canonicalized, and later these "canonicalized" symbols are used to recognize equivalence of these constants.
Canonicalization:
A process for converting data that has more than one possible representation into a "standard" canonical repres...
Navigation bar show/hide
...pp with a navigation bar consisting of 2 bar buttons. I would like to hide and show this navigation bar when a user double taps the screen.
...
minimum double value in C/C++
Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program?
...
Which sort algorithm works best on mostly sorted data? [closed]
...e highly scientific method of watching animated gifs I would say Insertion and Bubble sorts are good candidates.
share
|
improve this answer
|
follow
|
...
prevent property from being serialized in web API
I'm using an MVC 4 web API and asp.net web forms 4.0 to build a rest API. It's working great:
11 Answers
...
Fully custom validation error message with Rails
...
Now, the accepted way to set the humanized names and custom error messages is to use locales.
# config/locales/en.yml
en:
activerecord:
attributes:
user:
email: "E-mail address"
errors:
models:
user:
attributes:
e...
Forward declaration of nested types/classes in C++
...s someone know why it is not possible ? It seems there is valid use cases, and this lack prevents architecture consistency in some situations.
– Maël Nison
Nov 1 '12 at 16:10
...