大约有 15,000 项符合查询结果（耗时：0.0345秒） [XML]
Difference between Hive internal tables and external tables?
...use lists of partitions without going to the file-system and finding them, etc). These sorts of things are the 'metadata'.
When you drop an internal table, it drops the data, and it also drops the metadata.
When you drop an external table, it only drops the meta data. That means hive is ignorant o...
Make var_dump look pretty
...her solutions. It is extremely simple and requires no extensions, includes etc and is what I prefer. It's very easy and very fast.
First just json_encode the variable in question:
echo json_encode($theResult);
Copy the result you get into the JSON Editor at http://jsoneditoronline.org/ just copy...
What does AngularJS do better than jQuery? [closed]
...ts data on the page,
and hence, css properties like color, display/hide, etc changes dont
affect the model.
I can see your point here about "simple" DOM manipulation being cleaner, but only rarely and it would have to be really "simple". I think DOM manipulation is one the areas, just like dat...
Why use finally in C#?
...any time you use unmanaged code requests like stream readers, db requests, etc; and you want to catch the exception then use try catch finally and close the stream, data reader, etc. in the finally, if you don't when it errors the connection doesn't get closed, this is really bad with db requests
...
Batch script loop
...this:
for /l %x in (1, 1, 100) do (
echo %x
copy %x.txt z:\whatever\etc
)
or in a batch file
for /l %%x in (1, 1, 100) do (
echo %%x
copy %%x.txt z:\whatever\etc
)
Key:
/l denotes that the for command will operate in a numerical fashion, rather than operating on a set of files
%x i...
WebClient vs. HttpWebRequest/HttpWebResponse
...s you more control on the request. You can set cookies, headers, protocol, etc... In the response, you can also retrieve the cookies and headers
share
|
improve this answer
|
...
Best dynamic JavaScript/JQuery Grid [closed]
...ray, Ajax file and server-side processing (PHP, C#,
Perl, Ruby, AIR, Gears etc)
Scrolling options for table viewport
Fully internationalisable
jQuery UI ThemeRoller support
Rock solid - backed by a suite of 2600+ unit tests
Wide variety of plug-ins inc. TableTools, FixedColumns, KeyTable and
more
It...
Sql Server equivalent of a COUNTIF aggregate function
...ch item appeared in my results.
So I used this...
SELECT COL1, COL2, ... ETC
(1 / SELECT a.vcount
FROM (SELECT vm2.visit_id, count(*) AS vcount
FROM dbo.visitmanifests AS vm2
WHERE vm2.inactive = 0 AND vm2.visit_id = vm.Visit_ID
...
Java: Static Class?
...er alternatives like IllegalStateException, UnsupportedOperationException, etc?
– Pacerier
Jun 25 '14 at 0:36
@Pacerie...
How to debug JavaScript / jQuery event bindings with Firebug or similar tools?
...has color-coded highlights for different types of events (mouse, keyboard, etc.). When you hover over them, it shows the body of the event handler, how it was attached, and the file/line number (on WebKit and Opera). You can also trigger the event manually.
It can't find every event because there's...