sql - Mysql Case - Count Fields thats fall in curtain hours -


i trying set report has following fields :

enter image description here

pretty need report show date, total records fall in date (so group date) , on per hour basis 12 hour work day (from 8am - 8pm) need count when records present within times. after brain storming , brain farts thought why not use case. have tried : 

 select          date_format(signintime, '%b %d, %y') date,          count(session_id) total,         sum(case when hour(signintime) > 08 , hour(signintime) < 09 1 else 0 end) '8am-9pm',         sum(case when hour(signintime) > 09 , hour(signintime) < 10 1 else 0 end) '9am-10am',         sum(case when hour(signintime) > 10 , hour(signintime) < 11 1 else 0 end) '10am-11am',         sum(case when hour(signintime) > 11 , hour(signintime) < 12 1 else 0 end) '11am-12pm',         sum(case when hour(signintime) > 12 , hour(signintime) < 13 1 else 0 end) '12pm-1pm',         sum(case when hour(signintime) > 13 , hour(signintime) < 14 1 else 0 end) '1pm-2pm',         sum(case when hour(signintime) > 14 , hour(signintime) < 15 1 else 0 end) '2pm-3pm',         sum(case when hour(signintime) > 15 , hour(signintime) < 16 1 else 0 end) '3pm-4pm',         sum(case when hour(signintime) > 16 , hour(signintime) < 17 1 else 0 end) '4pm-5pm',         sum(case when hour(signintime) > 17 , hour(signintime) < 18 1 else 0 end) '5pm-6pm',         sum(case when hour(signintime) > 18 , hour(signintime) < 19 1 else 0 end) '6pm-7pm',         sum(case when hour(signintime) > 19 , hour(signintime) < 20 1 else 0 end) '7pm-8pm'  session   session.status = '3'  group hour(signintime), date;

if notice picture above, total 1 entire day (apr 19, 2013) if notice times (8am - 8pm) zeroed out. unsure turn / debug this. set of eyes can moving along.

regards.

you should not need use both > , < result, can check hour value:

select date_format(signintime, '%b %d, %y') date,    count(session_id) total,   sum(case when hour(signintime) = 08 1 else 0 end) '8am-9am',   sum(case when hour(signintime) = 09 1 else 0 end) '9am-10am',   sum(case when hour(signintime) = 10 1 else 0 end) '10am-11am',   sum(case when hour(signintime) = 11 1 else 0 end) '11am-12pm',   sum(case when hour(signintime) = 12 1 else 0 end) '12pm-1pm',   sum(case when hour(signintime) = 13 1 else 0 end) '1pm-2pm',   sum(case when hour(signintime) = 14 1 else 0 end) '2pm-3pm',   sum(case when hour(signintime) = 15 1 else 0 end) '3pm-4pm',   sum(case when hour(signintime) = 16 1 else 0 end) '4pm-5pm',   sum(case when hour(signintime) = 17 1 else 0 end) '5pm-6pm',   sum(case when hour(signintime) = 18 1 else 0 end) '6pm-7pm',   sum(case when hour(signintime) = 19 1 else 0 end) '7pm-8pm' session session.status = '3' group date_format(signintime, '%b %d, %y');

see sql fiddle demo


Comments

Post a Comment

Popular posts from this blog

c# - Send Image in Json : 400 Bad request -

from android trying send image class of data, iis webservice. (c#) the problem 400 bad request . the image being encoded base64 . , placed json rest of class elements. my guess base64 not valid inside json. server not understand it. if set string "" , post accepted fine. so question is, how make base64 valid within json array? ( tried url.encode no success). or how should send image android webservice? gson gson = new gson(); string json = gson.tojson(record); // record has param { string base64photo } how big image? i'm pretty sure surpassing iis json size limit (default 4 mb). check http://geekswithblogs.net/frankw/archive/2008/08/05/how-to-configure-maxjsonlength-in-asp.net-ajax-applications.aspx or http://www.webtrenches.com/post.cfm/iis7-file-upload-size-limits good luck!
Read more

javascript - addthis share facebook and google+ url -

i attempting use addthis create simple url shares whichever current page user on when click share button. of right now, have twitter working. when user clicks, able see url populated in tweet box. when user clicks facebook or google+, url doesn't seem show in share box. <ul class="addthis_toolbox addthis_default_style "> <li><a class="addthis_button_facebook"><img src="/img/facebook-social.png" width="20" height="20" border="0" alt="share" /></a></li> <li><a class="addthis_button_twitter"><img src="/img/twitter-social.png" width="20" height="20" border="0" alt="share" /></a></li> <li><a class="addthis_button_google_plusone_share"><img src="/img/google-social.png" width="20" height="20" border="0" alt="s...
Read more

ios - Show keyboard with UITextField in the input accessory view -

i have buttona , when buttona clicked, want keyboard show uitextfield in inputaccessoryview. there way have keyboard show manually , set inputaccessoryview without having uitextfield initially? thanks. you cannot summon keyboard without object can become first responder. there 2 ways work around: subclass uiview , implement uikeyinput protocol in it. example: in .h file: @interface inputobject : uiview<uikeyinput> @property (nonatomic, copy) nsstring *text; @property (nonatomic, strong) uiview *inputaccessoryview; // must override inputaccessoryview , since it's readonly default @end in .m file, implement protocol: - (bool)canbecomefirstresponder { return yes; } - (bool)hastext { return [self.text length]; } - (void)inserttext:(nsstring *)text { nsstring *selftext = self.text ? self.text : @""; self.text = [selftext stringbyappendingstring:text]; [[nsnotificationcenter defaultcenter] postnotificationname:kinputobjec...
Read more