How can I select records on the basis of their timings between specific times in SQL server -


i have sample data , part of query see fiddle. shows segment start time , end time. task sum of time segments between 6am 10pm in seconds. have filter on day how can restrict between 6am , 10 pm difficult me (may condition in case statement). second difficulty how part of segment when start time 5am , endtime 7am want display 3600 seconds part lies between 6am 10pm. if segment starts @ 9pm , finished @ 5am want 3600 seconds i.e. part before 10pm.

select    userid,   case     when datediff(day, starttime, endtime) = 0 datediff(second, starttime, endtime)    end totalsecondsfromsixamtotenpm         test

here expected result, note first , second last value obtained taking these values 

select datediff(second,  '2015-01-14 06:00:00.000', '2015-01-14 09:25:54.000') select datediff(second, '2015-01-14 21:30:14.000', '2015-01-14 22:00:00.000')   ╔════════╦══════════════════════════════╗ ║ userid ║ totalsecondsfromsixamtotenpm ║ ╠════════╬══════════════════════════════╣ ║ abc    ║ 12354                        ║ ║ abc    ║ 3600                         ║ ║ abc    ║ 15150                        ║ ║ abc    ║ 14684                        ║ ║ abc    ║ 1786                         ║ ║ abc    ║ null                         ║ ╚════════╩══════════════════════════════╝ 

with splitteddates  (     select         userid,         cast(starttime date) 'startdate',         cast(endtime date) 'enddate',         cast(starttime time) 'stime',         cast(endtime time) 'etime',         starttime,         endtime     test ), correctedtimes (     select userid,     case when startdate=enddate , stime<etime , stime<'10pm'         case              when stime>='6am' starttime             else cast(startdate datetime) + cast('6am' datetime)         end     end 'correctedstarttime',     case when startdate=enddate , stime<etime , etime>'6am'         case              when etime<='10pm' endtime             else cast(startdate datetime) + cast('10pm' datetime)         end     end 'correctedendtime'     splitteddates ) select    userid,   datediff(second, correctedstarttime, correctedendtime) totalsecondsfromsixamtotenpm correctedtimes

fiddle

result:

| userid | totalsecondsfromsixamtotenpm | |--------|------------------------------| |    abc |                        12354 | |    abc |                         3600 | |    abc |                        15150 | |    abc |                        14684 | |    abc |                         1786 | |    abc |                       (null) |

edit

i added conditions stime<'10pm' , etime>'6am' resolve issue comments


Comments

Post a Comment

Popular posts from this blog

html - Outlook 2010 Anchor (url/address/link) -

i'm trying link specific pdf page msoutlook'10 or msword'10, #page=... anchor particularly useful , works fine elsewhere. unfortunately when click [ctr-k] in outlook or winword, links re-formatted assuming unc path. pdf file located on shared drive. using "file:" prefix links open pdf in adobe reader (outside of browser), , "http:" open inside browser. issue seem need open in browser "file:" prefix in order anchor work. know anchors work inside browser. outlook uses windows/explorer default program (based on file extension) seems open in adobe reader neglecting anchor. is aware of solution, link specific page or bookmark of shared-pdf ms outlook and/or winword link? common references: mailermailer.com/...anchor-tags-html-emails campaignmonitor.com/...anchor-links-in-email-newsletters/ stackoverflow.com/...anchor-in-pdf-document
Read more

javascript - Why does running this loop 9 times take 100x longer than running it 8 times? -

consider code: test = function() { } t = new test(); (var = 0; < 8; i++) { result = t instanceof test; } if change number of iterations 8 9 , loop take 100 times longer complete in latest version of firefox (41.0.1). tested on 2 different pcs , magic limit 8. here jsperf test used: http://jsperf.com/instanceof-8-times-vs-9-times does have idea why might happen? seems specific instanceof . not happen if else object, example check property. note: filed bugzilla bug this. jan de mooij mozilla team has posted details in bugzilla thread . here's simplistic interpretation of highly technical answers: in i < 8 case, firefox smart enough hoist result = t instanceof test; statement out of loop (according tests, doesn't seem omit altogether). in i < 9 case, apparently doesn't optimization . why? reason not clear, related fact 9 iterations threshold above function considered "hot" enough run through jit compiler. i < 8 cas...
Read more

Getting gateway time-out Rails app with Nginx + Puma running on Digital Ocean -

following this guide setup app on digital ocean droplet, not working. site not loading , it's throwing: "gateway time-out". the puma server works, since ps aux | grep puma prints: root 15878 0.0 0.4 376832 2168 ? sl 12:50 0:00 puma 2.13.4 (unix:///var/www/myapp/shared/tmp/sockets/myapp-puma.sock) [20150930164940] root 15881 0.0 0.7 903676 3692 ? sl 12:50 0:06 puma: cluster worker 0: 15878 [20150930164940] root 24654 0.0 0.1 11748 916 pts/2 s+ 18:00 0:00 grep --color=auto puma my nginx config: user root; worker_processes 1; events { worker_connections 1024; } http { upstream puma { server unix:///var/www/myapp/shared/tmp/sockets/myapp-puma.sock; } server { listen 80; server_name myapp.com; root /var/www/myapp/current/public; access_log /var/www/myapp/current/log/access.log; error_log /...
Read more