大约有 2,500 项符合查询结果（耗时：0.0121秒） [XML]
psycopg2: insert multiple rows with one query
...atements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nelson
Apr 27 '15 at 23:22
5
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Calculating the difference between two Java date instances
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560
Simple diff (without lib)
/**
* Get a diff between two dates
* @param date1 the oldest date
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How to convert boost path type to string?
...uh, how is it deprecated? Sry, cannot find any official note... see also 1.60 reference: boost.org/doc/libs/1_60_0/libs/filesystem/doc/…
– Marco Alka
Jan 6 '16 at 23:00
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Why “decimal” is not a valid attribute parameter type?
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djdd87djdd87
60.7k2424 gold badges144144 silver badges190190 bronze badges
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Calculating distance between two points, using latitude longitude?
... dist = Math.acos(dist);
dist = rad2deg(dist);
dist = dist * 60 * 1.1515;
if (unit == 'K') {
dist = dist * 1.609344;
} else if (unit == 'N') {
dist = dist * 0.8684;
}
return (dist);
}
/*:::::::::::::::::::::::::::::::::::::::::::::...
Convert timedelta to total seconds
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>>> import datetime
>>> datetime.timedelta(seconds=24*60*60).total_seconds()
86400.0
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Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
...ld be:
async def get_http(url):
timeout = aiohttp.ClientTimeout(total=60)
async with aiohttp.ClientSession(timeout=timeout) as client:
try:
etc.
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How can I make a time delay in Python? [duplicate]
...rt time
while True:
print("This prints once a minute.")
time.sleep(60) # Delay for 1 minute (60 seconds).
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How to count total lines changed by a specific author in a Git repository?
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That's awesome! michael,: 6057 files changed, 854902 insertions(+), 26973 deletions(-), 827929 net
– Michael J. Calkins
Dec 17 '13 at 23:26
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MySQL: how to get the difference between two timestamps in seconds
...20 12:01:00', '2010-08-20 12:00:00')) diff;
+------+
| diff |
+------+
| 60 |
+------+
1 row in set (0.00 sec)
You could also use the UNIX_TIMESTAMP() function as @Amber suggested in an other answer:
SELECT UNIX_TIMESTAMP('2010-08-20 12:01:00') -
UNIX_TIMESTAMP('2010-08-20 12:00:00') di...