大约有 16,000 项符合查询结果（耗时：0.0313秒） [XML]
DateTime2 vs DateTime in SQL Server
...e2, some clients doesn't support date, time, or datetime2 and force you to convert to a string literal. If you're concerned more about compatability than precision, use datetime
– FistOfFury
Jun 25 '14 at 20:49
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Building big, immutable objects without using constructors having long parameter lists
...to it's mutable interface. The separate class approach requires methods to convert back and forth. The JodaTime API uses this pattern. See DateTime and MutableDateTime.
– toolbear
Aug 12 '11 at 20:40
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from list of integers, get number closest to a given value
...t; myList[pos]
...
44
To get the value that's closest to 5 you could try converting the list to an array and using argmin from numpy like so.
>>> import numpy as np
>>> myNumber = 5
>>> myList = [1, 3, 4, 44, 88]
>>> myArray = np.array(myList)
>>> ...
How to calculate the number of days between two dates? [duplicate]
... in milliseconds
const differenceMs = Math.abs(date1 - date2);
// Convert back to days and return
return Math.round(differenceMs / ONE_DAY);
}
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java.nio.file.Path for a classpath resource
...scheme.equals("jar")) {
throw new IllegalArgumentException("Cannot convert to Path: " + uri);
}
String s = uri.toString();
int separator = s.indexOf("!/");
String entryName = s.substring(separator + 2);
URI fileURI = URI.create(s.substring(0, separator));
FileSystem...
MySQL 'create schema' and 'create database' - Is there any difference
...
views) to implement their equivalent of "schema".
This is an area where systems differ.
As far as administration is concerned, this should not matter too much,
because here you have differences anyway.
As far as you look at application code, you "only" have to care about
cases where one appli...
How to use timeit module
...help reduce measurement distortions due to other processes running on your system.
Those are my tips for using timeit correctly. Hope this helps :-)
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How do I get a raw, compiled SQL query from a SQLAlchemy expression?
...ile_query(query):
from sqlalchemy.sql import compiler
from MySQLdb.converters import conversions, escape
dialect = query.session.bind.dialect
statement = query.statement
comp = compiler.SQLCompiler(dialect, statement)
comp.compile()
enc = dialect.encoding
params = []...
pdftk compression option
...duced the size of my uncompressed PDF dramatically.
Pixelated (lossy):
convert input.pdf -compress Zip output.pdf
Unpixelated (lossless, but may display slightly differently):
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -dQUIET -sOutputFile=output.pdf...
Write a number with two decimal places SQL server
...
try this
SELECT CONVERT(DECIMAL(10,2),YOURCOLUMN)
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