sql server - How to convert multiple join associated with aggregate function Linq to sql C#? -

-

i want write following query using linq sql ? tried , i'm beginner in linq , got lost in , please or tips articles can figure out ?? 

select (s.fname + '' + s.lname ) doctor_name  , appointment_id , [date/time] , price , type ,                                                                                                                                            patient_id staff s , (select  appointment_id,[date/time] , price , apptype.type , patient_id , [doctor-id]       appointmenttype apptype , (  select *  appointments app app.appointment_id =  (     select max(appointment_id) lastapp     appointments app1     app1.patient_id = app.patient_id , app.patient_id=10 )  ) rr apptype.id = rr.type ) dd dd.[doctor-id] = s.id

any tips please , way :) 

                using (dataclasses1datacontext db = new dataclasses1datacontext())                 {                       var x = apptype in db.appointmenttypes                                     rr in (                                         (from app in db.appointments                                                                                       app.appointment_id ==                                              (from app1 in db.appointments                                                                                             app1.patient_id == app.patient_id &&                                               app.patient_id == patient.patient_id                                             select new {                                               app1.appointment_id                                             }).max(p => p.appointment_id)                                         select new {                                           app                                         }))                                                                   apptype.id == rr.app.type                                     select new {                                         apptype.id,                                    //   apptype.appointment_id,                                     ///// take ***  column1 =  rr.app.date_time ,                                       apptype.price,                                       apptype.type,                                       rr.app.patient_id      //   apptype.patient_id,                                      // column2 = (apptype.doctor - apptype.id)                                     };

Comments

Post a Comment

Popular posts from this blog

c++ - OpenCV Error: Assertion failed <scn == 3 ::scn == 4> in unknown function, -

-
i read alot other solution still confused should mine... #include <opencv2/objdetect/objdetect.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/imgproc.hpp> #include <iostream> #include <stdio.h> using namespace std; using namespace cv; int main(int argc, const char** argv) { //create cascade classifier object used face detection cascadeclassifier face_cascade; //use haarcascade_frontalface_alt.xml library face_cascade.load("haarcascade_frontalface_alt.xml"); //setup video capture device , link first capture device videocapture capturedevice; capturedevice.open(0); //setup image files used in capture process mat captureframe; mat grayscaleframe; //create window present results namedwindow("outputcapture", 1); //create loop capture , find faces while (true) { //capture new image frame capturedevice >> captureframe; ...
Read more

php - render data via PDO::FETCH_FUNC vs loop -

-
i've been using 2 methods render data. the first one: function name($id,$name){ return '<div id="'.$id.'">'.$name.'</div>'; } echo implode($pdo->query("select id,name user")->fetchall(pdo::fetch_func,'name')); the second one: $users = $pdo->query("select id,name user")->fetchall(pdo::fetch_obj); foreach($users $user){ echo name($user->id,$user->name); } i don't understand how pdo::fetch_func works. tried figure out. however, not well-documented. could please explain fetch mode? , also, 1 performs better? thank you. both methods wrong , have learn how use templates , how separate business logic presentation logic. $users = $pdo->query("select id,name user")->fetchall(pdo::fetch_obj); tpl::assign('users', $users); is code business logic part. then in template <?php foreach $users $row): ?> <div id="<?=$...
Read more

The canvas has been tainted by cross-origin data in chrome only -

-
uncaught securityerror: failed execute 'getimagedata' on 'canvasrenderingcontext2d': canvas has been tainted cross-origin data i getting above error in chrome. code(following) works fine in mozilla. have not corss domain issue. why above error in chrome? var wheel_canvas, wheel_context, can_w, can_h, wheel_grd; var large_radius = 160; var small_radius = 120; var wheel_canvas = document.getelementbyid('wheel_canvas'); var wheel_context = wheel_canvas.getcontext('2d'); var can_w = $(wheel_canvas).width(); var can_h = $(wheel_canvas).height(); var centerx = can_w / 2, centery = can_h / 2; var wheel_grd = null; test('#ff0000'); function test(hex) { $('#clrpicker').css({'left': 210, 'top': 210 }); inverted = hexbw(hex); $('#color_val_show').val(hex); current_color_hex_val_selected = hex; $('#color_val_show').css({'color':inverted,'background':hex}); fillgradient...
Read more