大约有 41,270 项符合查询结果（耗时：0.0346秒） [XML]
Stripping everything but alphanumeric chars from a string in Python
...
347
I just timed some functions out of curiosity. In these tests I'm removing non-alphanumeric ch...
FIND_IN_SET() vs IN()
... to the first non-digit (a comma in your case).
Thus,
companyID IN ('1,2,3') ≡ companyID IN (CAST('1,2,3' AS INT)) ≡ companyID IN (1)
In PostgreSQL, you could cast the string into array (or store it as an array in the first place):
SELECT name
FROM orders
JOIN company
ON company...
“ImportError: No module named” when trying to run Python script
...
|
edited May 23 '17 at 11:33
Community♦
111 silver badge
answered Mar 25 '13 at 18:24
...
How to get cumulative sum
...
230
select t1.id, t1.SomeNumt, SUM(t2.SomeNumt) as sum
from @t t1
inner join @t t2 on t1.id >= t...
Split list into smaller lists (split in half)
...
238
A = [1,2,3,4,5,6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list...
Version number comparison in Python
...
37
Remove the uninteresting part of the string (trailing zeroes and dots), and then compare the li...
How to check if hex color is “too black”?
...
AlnitakAlnitak
303k6767 gold badges370370 silver badges458458 bronze badges
...
Python element-wise tuple operations like sum
...
138
import operator
tuple(map(operator.add, a, b))
...
Is there a zip-like function that pads to longest length in Python?
...
In Python 3 you can use itertools.zip_longest
>>> list(itertools.zip_longest(a, b, c))
[('a1', 'b1', 'c1'), (None, 'b2', 'c2'), (None, 'b3', None)]
You can pad with a different value than None by using the fillvalue paramet...