大约有 30,000 项符合查询结果（耗时：0.0451秒） [XML]
Selecting element by data attribute
...e? For example, select all anchors that has data attribute named customerID which has value of 22 .
11 Answers
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How to link to a named anchor in Multimarkdown?
...er to it on the same page by [link text](#abcd).
(This uses name= and not id=, for reasons explained in this answer.)
Remote references can use [link text](http://...#abcd) of course.
This works like a dream, provided you have control over the source and target texts. The anchor can even appear i...
How do I drop a function if it already exists?
...
IF EXISTS (
SELECT * FROM sysobjects WHERE id = object_id(N'function_name')
AND xtype IN (N'FN', N'IF', N'TF')
)
DROP FUNCTION function_name
GO
If you want to avoid the sys* tables, you could instead do (from here in example A):
IF object_id(N'function_nam...
Parallel.ForEach vs Task.Factory.StartNew
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I am sorry, my mistake, I should have clarified. I mean the creation of Tasks in a loop to 1000000000. The overhead is unimaginable. Not to mention that the Parallel cannot create more than 63 tasks at a time, which makes it much more optimized in the case.
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How to turn a String into a JavaScript function call? [duplicate]
...settings.functionName];
if(typeof fn === 'function') {
fn(t.parentNode.id);
}
Edit: In reply to @Mahan's comment:
In this particular case, settings.functionName would be "clickedOnItem". This would, at runtime translate var fn = window[settings.functionName]; into var fn = window["clickedOnIte...
Read Excel File in Python
...
from xlrd import open_workbook
class Arm(object):
def __init__(self, id, dsp_name, dsp_code, hub_code, pin_code, pptl):
self.id = id
self.dsp_name = dsp_name
self.dsp_code = dsp_code
self.hub_code = hub_code
self.pin_code = pin_code
self.pptl = p...
What is the difference between single and double quotes in SQL?
... what the column is actually called in the database. For example: PRODUCT.id would be more readable as product_id, so you use either of the following:
SELECT PRODUCT.id AS product_id
SELECT PRODUCT.id 'product_id'
Either works in Oracle, SQL Server, MySQL… but I know some have said that the T...
How do I squash two non-consecutive commits?
...
I think you mean --oneline? And it looks like you've dropped C and B, which isn't what the OP was intending.
– bstpierre
Oct 13 '10 at 12:18
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How do I delete a fixed number of rows with sorting in PostgreSQL?
...
You could try using the ctid:
DELETE FROM logtable
WHERE ctid IN (
SELECT ctid
FROM logtable
ORDER BY timestamp
LIMIT 10
)
The ctid is:
The physical location of the row version within its table. Note that although the ctid can b...
Java String remove all non numeric characters
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@Óscar López: how to include negative numbers also? I mean, I have to replace everything that is not a positive/negative number with an empty space. How to do that?
– Pankaj Singhal
Sep 6 '15 at 9:07
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