大约有 47,000 项符合查询结果（耗时：0.0492秒） [XML]
How to generate serial version UID in Intellij
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very nice, very easy to install. you can install that from plugins menu, select install from disk, select the jar file you unpacked in the lib folder. restart, control + ins, and it pops up to generate serial UID from menu. love it. :-)
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Calculate the median of a billion numbers
...r sending data over a network to be faster than sorting it (let alone just selecting the median) it needs to be a pretty damn fast network. Might be a better prospect if the network can be presumed to be instantaneous, for example if you have 100 cores with equal access to RAM containing the data.
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Disable Enable Trigger SQL server for a table
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Below is the Dynamic Script to enable or disable the Triggers.
select 'alter table '+ (select Schema_name(schema_id) from sys.objects o
where o.object_id = parent_id) + '.'+object_name(parent_id) + ' ENABLE TRIGGER '+
Name as EnableScript,*
from sys.triggers t
where is_disabled = 1
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Rails auto-assigning id that already exists
...mpany.id column to the highest value in the table with a query like this:
SELECT setval('company_id_seq', (SELECT max(id) FROM company));
I am guessing at your sequence name "company_id_seq", table name "company", and column name "id" ... please replace them with the correct ones. You can get the...
In Vim, how do I apply a macro to a set of lines?
... matching pattern.
:g/pattern/norm! @a
To execute the macro on visually selected lines, press V and the j or k until the desired region is selected. Then type :norm! @a and observe the that following input line is shown.
:'<,'>norm! @a
Enter :help normal in vim to read more.
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how to set textbox value in jquery
...tched element.
You cannot set the value of a textbox with that method.
$(selector).load() returns the a jQuery object. By default an object is converted to [object Object] when treated as string.
Further clarification:
Assuming your URL returns 5.
If your HTML looks like:
<div id="foo"&g...
Why does jQuery or a DOM method such as getElementById not find the element?
...for document.getElementById , $("#id") or any other DOM method / jQuery selector not finding the elements?
9 Answers
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Count immediate child div elements using jQuery
...est to see the speed difference and the children() method beaten the child selector (#foo > div) approach by at least 60% in Chrome (canary build v15) 20-30% in Firefox (v4).
By the way, needless to say, these two approaches produce same results (in this case, 1000).
[Update] I've updated the t...
Windows equivalent of the 'tail' command
...n*}"
Tail Command:
powershell -command "& {Get-Content *filename* | Select-Object -last *n*}"
or, directly from PowerShell:
Get-Content *filename* -TotalCount *n*
Get-Content *filename* | Select-Object -last *n*
update
PowerShell 3.0 (Windows 8 and higher) added Tail command with alias...
How to add new column to MYSQL table?
...r comment it looks like your'e only adding the new column if: mysql_query("SELECT * FROM assessment"); returns false. That's probably not what you wanted. Try removing the '!' on front of $sql in the first 'if' statement. So your code will look like:
$sql=mysql_query("SELECT * FROM assessment");
if...