大约有 40,000 项符合查询结果（耗时：0.0648秒） [XML]
Defining custom attrs
... to use an attr in more than one place I put it in the root element. Note, all attributes share the same global namespace. That means that even if you create a new attribute inside of a <declare-styleable> element it can be used outside of it and you cannot create another attribute with the sa...
Oracle SQL: Update a table with data from another table
...
This is called a correlated update
UPDATE table1 t1
SET (name, desc) = (SELECT t2.name, t2.desc
FROM table2 t2
WHERE t1.id = t2.id)
WHERE EXISTS (
SELECT 1
FROM table2 t2...
How to copy files from 'assets' folder to sdcard?
I have a few files in the assets folder. I need to copy all of them to a folder say /sdcard/folder. I want to do this from within a thread. How do I do it?
...
Converting an int to a binary string representation in Java?
...
Laurel
5,3621010 gold badges2323 silver badges4545 bronze badges
answered Aug 29 '16 at 18:58
Ariel BadillaAriel Badilla
...
How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
... It seems to me that if you redirect to the same page, then $_POST is cleared. As I understand it, that was the desired effect. That was MY desired effect, anyway. I think the answer would be better if it made that explicit, though.
– donutguy640
...
Will Emacs make me a better programmer? [closed]
... who are merely good or competent will pick up an IDE and get to know it really well, and maybe do decently enough in it, but they'll restrict themselves to what the IDE provides for them. In other words, they adapt themselves to the IDE. The great programmers, on the other hand, will adapt their en...
Download JSON object as a file from browser
...or without explicit clicking since I want to trigger the download automatically at some point from js.
JS solution (no HTML required):
function downloadObjectAsJson(exportObj, exportName){
var dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(exportObj));
var ...
Comparing two dataframes and getting the differences
...df2, works only for dataframes with identical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order.
If I got you right, you want not to find changes, but symmetric difference. For that, o...
How to have git log show filenames like svn log -v
...ncouraged to use
git-log[1] instead. The
whatchanged command is essentially the same as
git-log[1] but defaults to show
the raw format diff output and to skip merges.
The command is kept primarily for historical reasons; fingers of many
people who learned Git long before git log was i...
How to drop column with constraint?
...'alter table tbloffers drop constraint ['+dc.NAME+N']'
from sys.default_constraints dc
JOIN sys.columns c
ON c.default_object_id = dc.object_id
WHERE
dc.parent_object_id = OBJECT_ID('tbloffers')
AND c.name = N'checkin'
IF @@ROWCOUNT = 0 BREAK
EXEC (@sql)
END
...