Time
Aggregating By Time
I want to aggregate against the Time column that is read in as a string and then subset the output but I can\'t convert the output tmp$Time to Time value.[详细]
2023-04-04 16:02 分类：问答How to temporary adjust date/time in Linux shell
I want to write some testscripts that create some files and execute commands that change behaviour depending on the current date. For testing purposes I would like to change the time to different date[详细]
2023-04-04 14:13 分类：问答Select records from one week previous in mysql
I have data that has a date (Y-m-d H:i:s) column (the type is datetime). I\'d like to select all records from 1 week before a date I enter (in the below example: 2011-09-17 00:00:00, but am having som[详细]
2023-04-04 13:28 分类：问答Group by datetime ignoring time portion
开发者_如何学运维Is it possible to write a Microsoft SQL query that will group by a datetime data-type but ignoring the time part such as the hour and minute?If you are on SQL Server 2008 this is simp[详细]
2023-04-04 12:01 分类：问答Are C time functions dependent on the system clock?
This specifically goes for gmtime() function in C, although if it gets time differently compared to the other time functions I\'d like to know.[详细]
2023-04-04 08:03 分类：问答php strtotime() produce different result in window mac linux?
$today= date(\"Y-m-d H:i\"); $endtime = date(\"2011-09-14 00:00\"); $second= abs(time() - 开发者_如何学运维strtotime($endtime, strtotime($today, 0)));[详细]
2023-04-04 06:52 分类：问答Working out starting time when user has chosen the gmt time
I have a loop that checks to see if a user\'s daily game has started based on time().The event starting time is based on the GMT time that the user has chosen.[详细]
2023-04-04 05:15 分类：问答Given the latitude and longitude, how can I tell if it's daylight?
I\'m writing a Python program that needs to determine whether it\'s post-sunrise or not, given only the current UTC time and the target latitude and longitude. I开发者_JAVA技巧 see apps do this sort o[详细]
2023-04-04 00:27 分类：问答Java - Months and days?
First of, I have been searching to find anything close to my question but I couldn\'t find anything. I am not a very good programmer, I have just started to play with it a little, and my interest for[详细]
2023-04-03 23:56 分类：问答How do I model "relative" time in a database?
Clarification: I am not trying to calculate friendly times (e.g., \"8 seconds ago\") by using a timestamp and the current time.[详细]
2023-04-03 22:01 分类：问答
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