大约有 30,000 项符合查询结果（耗时：0.0482秒） [XML]
Regex not operator
..."not the string abc".
– Raining
May 24 '19 at 16:21
add a comment
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...
generate days from date range
...nion all select 9) as d
) a
where a.Date between '2010-01-20' and '2010-01-24'
Output:
Date
----------
2010-01-24
2010-01-23
2010-01-22
2010-01-21
2010-01-20
Notes on Performance
Testing it out here, the performance is surprisingly good: the above query takes 0.0009 sec.
If we extend the sub...
How to force vim to syntax-highlight a file as html?
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answered Oct 4 '10 at 5:24
BenoitBenoit
67.7k2121 gold badges185185 silver badges219219 bronze badges
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Adding a user to a group in django
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answered Jun 9 '11 at 6:24
juankysmithjuankysmith
8,89044 gold badges3232 silver badges5454 bronze badges
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How to toggle a boolean?
... |
edited May 21 at 19:24
answered Jul 22 '12 at 22:11
J...
Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...Datetimes too (if you use pd.NaT you won't need to specify the dtype)
In [24]: s = Series([Timestamp('20130101'),np.nan,Timestamp('20130102 9:30')],dtype='M8[ns]')
In [25]: s
Out[25]:
0 2013-01-01 00:00:00
1 NaT
2 2013-01-02 09:30:00
dtype: datetime64[ns]``
In [26]: pd.isnu...
How can I use a local image as the base image with a dockerfile?
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answered Jul 24 '15 at 12:03
DmitriusanDmitriusan
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What is a dependency property?
....
– Jonathan Perry
Jul 17 '13 at 12:24
2
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Select Row number in postgres
...ry re-arrange result ordering of course ref: stackoverflow.com/a/3397149/32453 comments
– rogerdpack
Jul 8 '16 at 15:54
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Overriding class constants vs properties
...his::TEST with PHP5.3+?
– Xenos
Jun 24 '14 at 13:05
Hi @Xenos - The goal of the example was to show that instance-leve...