大约有 43,100 项符合查询结果（耗时：0.0482秒） [XML]
conditional unique constraint
... constraint like this. The difference is, you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS I...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
...
15 Answers
15
Active
...
Select values from XML field in SQL Server 2008
...
159
Given that the XML field is named 'xmlField'...
SELECT
[xmlField].value('(/person//firstName...
warning: [options] bootstrap class path not set in conjunction with -source 1.5
...
102
From a blog post:
To use javac from JDK N to cross-compiler to an older platform version, ...
How do I compute derivative using Numpy?
...
143
You have four options
Finite Differences
Automatic Derivatives
Symbolic Differentiation
Com...
How do I list all cron jobs for all users?
...
1149
You would have to run this as root, but:
for user in $(cut -f1 -d: /etc/passwd); do crontab ...
How to express infinity in Ruby?
...
188
If you use ruby 1.9.2, you can use:
>> Float::INFINITY #=> Infinity
>> 3 < ...
How do you change the size of figures drawn with matplotlib?
...
17 Answers
17
Active
...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
MFC学习总结 (90个技巧) dlg 上建立View1．属性页的添加：创建对话框的类，该类要从CpropertyPage继承；然后在要添加该对话框为 属性页的类(头文件)里创建CpropertySheet类的一 [page]属性页的添加[/page]1．属性页的添加：
创建对话框...