大约有 3,600 项符合查询结果（耗时：0.0167秒） [XML]
SQL Server 2008: How to query all databases sizes?
...than 1% used'' else
substring(cast((sum(FILEPROPERTY(name,''SpaceUsed''))*1.0*100/sum(size)) as CHAR(50)),1,6) end ''percent fill''
from sys.master_files where database_id=DB_ID(DB_NAME()) and type=0
group by type_desc ) as x ,
(select
sum(size*8/1024) ''total size log'',sum(FILEPROPERTY(na...
Working with time DURATION, not time of day
...me" data type - just change the format!
Excels time/date format is simply 1.0 equals 1 full day (starting on 1/1/1900). So 36 hours would be 1.5. If you change the format to [h]:mm, you'll see 36:00.
Therefore, if you want to work with durations, you can simply use subtraction, e.g.
A1: Start: ...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，WhatsApp的Push消息很不及时，体验非常差。
3. GCM研究
3.1 GCM特点
a）Android2.2以下的手机不支持GCM，2.2到3.0需要安装Google Store并设置Google帐号，4.04及以上版本不需要设置帐号也能支持。
b）GCM只传递数据（可以传递小于4kb的数...
Pure JavaScript Send POST Data Without a Form
...:
Object
Console log (firefox):
GET
http://XXXXX:8000/hello.html [HTTP/1.0 200 OK 0ms]
POST
XHR
http://XXXXX:8000/postman [HTTP/1.0 200 OK 0ms]
HELLO hello.html:13:3
{"req": {"value": "value"}} hello.html:14:3
Object { req: Object }
Console log (Edge):
HTML1300: Navigation occurred.
hello.h...
Generate Java classes from .XSD files…?
... Listing 3 item.xml file is created. It looks like this:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns1:item ns1:id="2" xmlns:ns1="http://blogs.sun.com/teera/ns/item">
<ns1:itemName>Foo</ns1:itemName>
<ns1:price>200</ns1:price>
</ns1:item>
...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
...
I recently submitted a build with CFBundleVersion with "1.0.2 RC3" and it bounced with error message: "The bundle is invalid. The key CFBundleVersion in the Info.plist file must be a period-separated list of non-negative integers." I think the nn.n.nxnnn is the correct format to u...
Calculate the median of a billion numbers
...
Just tried on an Intel i5-4200M @3.1 GHz (4 cores). According to the time command applied to the whole pipeline, it took real=36m24s ("wall clock time"), user=113m15s ("parallel time", all cores added). The longest command, far ahead the others, was sort, e...
How to create standard Borderless buttons (like in the design guideline mentioned)?
...like this:
res/drawable/selector_transparent_button.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"
android:exitFadeDuration="@android:integer/config_shortAnimTime">
<item android:state_pressed="true"
...
What are all the valid self-closing elements in XHTML (as implemented by the major browsers)?
...sue: the intention was to allow old
(HTML-only) browsers to accept XHTML 1.0 documents by following the
guidelines, and serving them as text/html. Therefore, documents served as
text/html should be treated as HTML and not as XHTML.
It's a very common pitfall, because W3C Validator largely ig...
What's the difference between a Future and a Promise?
...s that the client cannot set the value of the future.
Both Spring and EJB 3.1 have an AsyncResult class, which is similar to the Scala/C++ promises. AsyncResult does implement Future but this is not the real future: asynchronous methods in Spring/EJB return a different, read-only Future object thro...