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Multiple INSERT statements vs. single INSERT with multiple VALUES
... 2416 | 0.153846154 |
| 248 | 528 | 39 | 2432 | 0.157258065 |
| 249 | 528 | 39 | 2432 | 0.156626506 |
| 250 | 528 | 40 | 2448 | 0.16 |
| 251 | 400 | 273 | 3488 | 1.08...
Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers
...u could do it like this:
import pandas
import numpy
dtype = [('Col1','int32'), ('Col2','float32'), ('Col3','float32')]
values = numpy.zeros(20, dtype=dtype)
index = ['Row'+str(i) for i in range(1, len(values)+1)]
df = pandas.DataFrame(values, index=index)
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SQLAlchemy: What's the difference between flush() and commit()?
...apshoesnapshoe
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Maximum size of an Array in Javascript
...ccording to the ECMA-262 5th Edition specification is bound by an unsigned 32-bit integer due to the ToUint32 abstract operation, so the longest possible array could have 232-1 = 4,294,967,295 = 4.29 billion elements.
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Gradle: Execution failed for task ':processDebugManifest'
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TypeScript sorting an array
...t builds = [
{ id: 1, name: 'Build 91'},
{ id: 2, name: 'Build 32' },
{ id: 3, name: 'Build 13' },
{ id: 4, name: 'Build 24' },
{ id: 5, name: 'Build 5' },
{ id: 6, name: 'Build 56' }
]
let sortedBuilds = builds.sort((n1, n2) => {
return naturalCompare(n1....
How to negate specific word in regex? [duplicate]
...g)'
– seenimurugan
Sep 21 '16 at 13:32
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Append a NumPy array to a NumPy array
...|S1')
As you see based on the contents the dtype went from int64 to float32, and then to S1
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Format a datetime into a string with milliseconds
...%M:%S.%f')[:-3]
>>>> OUTPUT >>>>
2020-05-04 10:18:32.926
Note: For Python3, print requires parentheses:
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3])
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Comparing Haskell's Snap and Yesod web frameworks
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...