大约有 4,500 项符合查询结果（耗时：0.0218秒） [XML]
how to check the dtype of a column in python pandas
...nize dtype correctly:
s = pd.Series([pd.Period('2002-03','D'), pd.Period('2012-02-01', 'D')])
s
s.dtype == pd.PeriodDtype # Not working
type(s.dtype) == pd.PeriodDtype # working
>>> 0 2002-03-01
>>> 1 2012-02-01
>>> dtype: period[D]
>>> False
>>&g...
SQL Server database backup restore on lower version
...ried this process on different versions of SQL Server from SQL 2014 to SQL 2012 and from SQL 2014 to SQL 2008R2 and worked well.
share
|
improve this answer
|
follow
...
Mock framework vs MS Fakes frameworks
...plete write-up on this concept see this post of mine:
https://jcoop.io/2012/05/21/solid-code-for-solid-reasons/
For more information on some concerns related to the fakes frameworks take a look at these posts:
https://jcoop.io/2012/03/16/38/
If you're interested in learning RhinoMocks here...
刘强东“一元年薪”背后的O2O棋局 - 资讯 - 清泛网 - 专注C/C++及内核技术
...定投资者的信心。
稳定投资者信心或许是为了缓解其在最新一期财务报告中持续亏损所带来的负面影响。
8月7日，京东发布了2015年第二季度财报。据财报显示，虽然京东第二季度交易总额为1145亿元，同比增长82%，净收入则达...
How do you view ALL text from an ntext or nvarchar(max) in SSMS?
...ing the whole field, without having to write a program to do it. Even SSMS 2012 still has this problem :(
9 Answers
...
what is the difference between OLE DB and ODBC data sources?
... as a data access technology for SQL Server releases after v11 (SQL Server 2012). For a couple of years before this point, they had been producing and updating the SQL Server Native Client, which supported both ODBC and OLE DB technologies. In late 2012 however, they announced that they would be ali...
What is the list of possible values for navigator.platform as of today? [closed]
... 5 on any iPhone (2009)
Pike v7.8 release 517: Opera Mini 7 on any iPhone (2012)
BlackBerry
BlackBerry (2003)
FreeBSD
FreeBSD
FreeBSD i386: x86 (IA-32) processor
FreeBSD amd64: AMD x86-64 processor
Linux
Seriously unreliable because so many platforms are built on this. For example, Chrome on Ch...
Why were pandas merges in python faster than data.table merges in R in 2012?
...to data.table as presented.
UPDATE from data.table v1.8.0 released July 2012
Internal function sortedmatch() removed and replaced with chmatch()
when matching i levels to x levels for columns of type 'factor'. This
preliminary step was causing a (known) significant slowdown when t...
Subtract 7 days from current date
...*24*60*60];
NSLog(@"7 days ago: %@", sevenDaysAgo);
output:
7 days ago: 2012-04-11 11:35:38 +0000
Hope it helps
share
|
improve this answer
|
follow
|
...
Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its mo
...
Doesn't work for Windows Server 2012. Read Zach's post on this page.
– Ivan Akcheurov
Dec 23 '13 at 10:49
...