查询学生上课人数超过 “Eastern Heretic” 的任意一门课的学生人数的课程信息，请使用 ANY 操作符实现多行子查询。...讲师年龄 country varchar 讲师国籍 本题涉及到多层的嵌套: 第一层的父查询为在课程表 courses 中查询满足条件的全部课程信息，这个条件由子查询来完成，即为，查询学生上课人数超过 ”Eastern...第二层的父查询为在课程表 courses 中根据教师 id 查询学生上课人数， 其子查询为在教师表 teachers 中查找教师名 name 为 “Eastern Heretic” 的教师 id。...条件限制：由于我们最终得到的课程信息中肯定不包含 “Eastern Heretic” 的课程，所以我们要在 WHERE 条件中再设置一项：不为 “Eastern Heretic” 所开的课程 。...= 但是有些数据库会报错，例如SQL2000 —-- AND `teacher_id` ( SELECT `id` FROM `teachers` WHERE `name` = 'Eastern
coding: utf-8 -*- import pytz from datetime import datetime, timedelta fmt = '%Y-%m-%d %H:%M:%S %Z%z' eastern...= pytz.timezone('US/Eastern') print(eastern.zone) loc_dt = eastern.localize(datetime(2002, 10, 27, 6...coding: utf-8 -*- import pytz from datetime import datetime, timedelta fmt = '%Y-%m-%d %H:%M:%S %Z%z' eastern...= pytz.timezone('US/Eastern') print(eastern.zone) loc_dt = eastern.localize(datetime(2002, 10, 27, 6
可以参考一下： 客户端： db2codepage=1386(简体中文) db2country=86(中国) db2comm=tcpip 服务器端...(=x0346) EBCDIC Thai SBCS 850 (=x0352) ISO8859-1 Western European 852 (=x0354) PC-ASCII Eastern... 1200 (=x04B0) Unicode – UCS-2 1208 (=x04B8) Unicode – UTF-8 1250 (=x04E2) Windows – Eastern...European 1283 (=x0503) Apple – Cyrillic 1284 (=x0504) IBM-504: Eastern European 1285...(=x0505) IBM-505: Eastern European 1363 (=x0553) Windows Korean PC Mixed including 11,172 full
, 322473) 用unix时间戳初始化Delorean >>> from delorean import epoch >>> epoch(1357971038.102223).shift("US/Eastern...(2019, 3, 14, 3, 48, 40, 316686), timezone='US/Pacific') >>> d = Delorean(datetime=dt, timezone="US/Eastern...") >>> d Delorean(datetime=datetime.datetime(2012, 5, 15, 3, 50, 0, 555555), timezone='US/Eastern') >...>> d.truncate('month') Delorean(datetime=datetime.datetime(2012, 5, 1, 0, 0), timezone='US/Eastern')...>>> d.truncate('year') Delorean(datetime=datetime.datetime(2012, 1, 1, 0, 0), timezone='US/Eastern')
displayNameEn": "james" } }], "must_not": [{ "term": { "teamConferenceEn": { "value": "Eastern...displayNameEn": "james" } }], "must_not": [{ "term": { "teamConferenceEn": { "value": "Eastern...displayNameEn": "james" } }], "must_not": [{ "term": { "teamConferenceEn": { "value": "Eastern
而不是凌晨2点，时钟再次返回1小时，再次发生01:00 EST(东部标准时间) >>> utc_dt = datetime(2002, 10, 27, 6, 0, 0, tzinfo=utc) >>> eastern...= timezone('US/Eastern') >>> loc_dt = utc_dt.astimezone(eastern) >>> before = loc_dt - timedelta(minutes...=10) >>> before.strftime(fmt) '2002-10-27 00:50:00 EST-0500' >>> eastern.normalize(before).strftime(fmt...) '2002-10-27 01:50:00 EDT-0400' >>> after = eastern.normalize(before + timedelta(minutes=20)) >>> after.strftime
Asia 5952 3 1960 Africa Eastern Europe & Central Asia 7303 4 1960 Africa...NA 3 Europe 3 #B2C224 Europe NA 4 Eastern...Europe & Central Asia 4 #FECC2F Eastern Europe & Central Asia 5 Western Asia...Asia 6 Southern Asia 6 #F66320 Southern Asia 7 Eastern...Asia 7 #DB3937 Eastern Asia 8 Oceania
练习 8.1： 修改clock2来支持传入参数作为端口号，然后写一个clockwall的程序，这个程序可以同时与多个clock服务器通信，从多服务器中读取时间，并且在一个表格中一次显示所有服务传回的结果...如果你有地理学上分布式的服务器可以用的话，让这些服务器跑在不同的机器上面；或者在同一台机器上跑多个不同的实例，这些实例监听不同的端口，假装自己在不同的时区。...像下面这样： $ TZ=US/Eastern ./clock2 -port 8010 & $ TZ=Asia/Tokyo .
设置DF的columns和index属性的name属性 创建数据 如何创建一列布尔值(T/F)的数据 如何创建一个新的属性数据 # 1、2 # 先判断state属性的值是否为Ohio # 如果等于，将eastern...属性的值设为T，否则为F # eastern属性是新建的，只能通过字典标记的形式 frame2["eastern"] = (frame2.state == "Ohio") frame2 year state...pop debt eastern one 2000 Ohio 1.5 1.2 True two 2001 Ohio 1.7 NaN True three 2002 Ohio 3.6 1.9 True...Nevada 2.4 NaN False five 2002 Nevada 2.9 2.0 False six 2003 Nevada 3.2 NaN False # 3 删除数据 del frame2["eastern
数据的搜寻并删除 删除/etc/passwd所有包含root的行，其他行输出 [root@www ~]# cat /etc/passwd | sed '/root/d' 5）数据的搜寻并执行命令 找到匹配模式eastern...Charles Main 3.0 .98 3 34 southwest SW Lewis Dalsass 2.7 .8 2 18 southern SO Suan Chin 5.1 .95 4 15 eastern...Dalsass 2.7 .8 2 18 SSSSSSern SO Suan Chin 5.1 .95 4 15 SSSSSSeast SE Patricia Hemenway 4.0 .7 4 17 eastern...EA TB Savage 4.4 .84 5 20 eastern EA TB Savage 4.4 .84 5 20 northeast NE AM Main Jr. 5.1 .94 3 13 north...EA TB Savage 4.4 .84 5 20 eastern EA TB Savage 4.4 .84 5 20$ eastern EA TB Savage 4.4 .84 5 20 northeast
39.28602, "longitude": -76.6689, "precision": "Zip9", "time\_zone": "Eastern...39.2858, "longitude": -76.66889, "precision": "Zip9", "time\_zone": "Eastern
135, 136, 137, 138, 139, 140, 141]) var dict = { "names": [ "Jack pine", "Red pine", "Eastern...white pine", "Eastern White pine / Eastern hemlock", "Eastern hemlock", "Balsam fir",..."Sand pine", "Table-mountain pine", "Pond pine", "Pitch pine", "Spruce pine", "Eastern..."Australian pine", "Other exotic softwoods", "Norway Spruce", "Introduced larch", "Eastern...white pine / N. red oak / white ash", "Eastern redcedar / hardwood", "Longleaf pine / oak",
]: 1 2013-01-02 09:10:12 dtype: datetime64[ns] 还可以轻易实现时区转换： In [270]: stz = s.dt.tz_localize('US/Eastern...09:10:12-05:00 2 2013-01-03 09:10:12-05:00 3 2013-01-04 09:10:12-05:00 dtype: datetime64[ns, US/Eastern...] In [272]: stz.dt.tz Out[272]: 还可以把这些操作连在一起： In [273...]: s.dt.tz_localize('UTC').dt.tz_convert('US/Eastern') Out[273]: 0 2013-01-01 04:10:12-05:00 1 2013...04:10:12-05:00 2 2013-01-03 04:10:12-05:00 3 2013-01-04 04:10:12-05:00 dtype: datetime64[ns, US/Eastern
今天在操作系统的时候创建了一个文件，ls了一下发现时间和本地时间不对，date看了一下后发现时区是EDT(Eastern Daylight Timing)指美国东部夏令时间)。...时区这玩意，百年难得修改一次，几乎算是最不常用的操作了(除了运维NTP服务器的大神们)，记录一下。
GMT=Greenwich Mean Time 格林尼治平均时 UTC=GMT PST=Pacific Standard Time 太平洋标准时间，UTC-0800 EST=Eastern...Standard Time 东部标准时间，UTC-0500 EDT=Eastern Daylight Time 东部夏令时(或）东部日光时间，UTC-0400 Win 10 日期时间小技巧
-03-06 19:00:00-05:00', '2012-03-07 19:00:00-05:00'], dtype='datetime64[ns, US/Eastern]', freq=None...这对于不寻常的时区比‘标准’时区如US/Eastern更有问题。 警告 请注意，跨时间区库版本的时区定义可能不被视为相等。这可能会在使用一个版本本地化的存储数据并在不同版本上操作时出现问题。...然而，具有相同 UTC 值的时间戳即使在不同时区中仍被视为相等： In [464]: rng_eastern = rng_utc.tz_convert("US/Eastern") In [465]:...rng_berlin = rng_utc.tz_convert("Europe/Berlin") In [466]: rng_eastern[2] Out[466]: Timestamp('2012-...='US/Eastern')], dtype=object) 通过转换为时间戳的对象数组，它保留了时区信息。
United States","displayName":"杰伦 亚当斯","schoolType":"College","teamConference":"东部","teamConferenceEn":"Eastern...United States","displayName":"巴姆 阿德巴约","schoolType":"College","teamConference":"东部","teamConferenceEn":"Eastern...Louisville/South Sudan","displayName":"邓 Adel","schoolType":"","teamConference":"东部","teamConferenceEn":"Eastern.../United States","displayName":"劳勒 Alkins","schoolType":"","teamConference":"东部","teamConferenceEn":"Eastern...United States","displayName":"贾瑞特 艾伦","schoolType":"College","teamConference":"东部","teamConferenceEn":"Eastern
A new deep learning model developed by researchers at the University of Eastern Finland can identify
: 1 2013-01-02 09:10:12 dtype: datetime64[ns] 还可以轻易实现时区转换： In [270]: stz = s.dt.tz_localize('US/Eastern...09:10:12-05:00 2 2013-01-03 09:10:12-05:00 3 2013-01-04 09:10:12-05:00 dtype: datetime64[ns, US/Eastern...] In [272]: stz.dt.tz Out[272]: 还可以把这些操作连在一起： In [...273]: s.dt.tz_localize('UTC').dt.tz_convert('US/Eastern') Out[273]: 0 2013-01-01 04:10:12-05:00 1...04:10:12-05:00 2 2013-01-03 04:10:12-05:00 3 2013-01-04 04:10:12-05:00 dtype: datetime64[ns, US/Eastern
pytz.utc) print("当前UTC时间:", now_utc) # 将当前时间转换为其他时区 now_est = now_utc.astimezone(pytz.timezone('US/Eastern...# 创建带时区的日期和时间 aware_datetime = datetime.datetime(2023, 6, 4, 14, 30, 15, tzinfo=pytz.timezone('US/Eastern...datetime.datetime.now(pytz.utc) print("当前UTC时间:", now_utc) now_est = now_utc.astimezone(pytz.timezone('US/Eastern...将时间戳转换为带时区的 datetime 对象 datetime_obj = datetime.datetime.fromtimestamp(current_timestamp, pytz.timezone('US/Eastern...处理带时区的时间戳 datetime_obj_with_tz = datetime.datetime.fromtimestamp(current_timestamp, pytz.timezone('US/Eastern
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