mysql - How to count no of student got registered for a particular course for the below two given table? -

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enter image description herehere have write sql query in order count number of students registered particular course taking "examseriesname" user input user interface. using mysql query browser:

the following different table details:

create table tblcourse (   courseid numeric(8) primary key,   cname    varchar(20),   uid      numeric(8),   numberofyears numeric(8),   coursecode varchar(8) );  create table tblstudent (   regid numeric(8) primary key,   sid   numeric(8),   sname varchar(20),   year varchar(4),   courseid numeric(8),   branchid numeric(8),   uid numeric(8),   collegeid numeric(8) );  create table tblexamseries (   id numeric(8) primary key,   monthandyearofexam date,   examseriesname varchar(20),   serieslastdate date,   chalanlastdate date );

sorry yesterday have not mentioned other 2 table. today sir told should correct query sharing ans all. support.

select cname, count(*)

from           tblstudent st,           tblstudentdetails sd,           tblstudentexamregistration tes,           tblcourse tc

where

                tes.studentid=sd.id                  ,                 sd.regid=st.regid                  ,                 st.courseid=tc.courseid                  ,                 tes.examseriesid='" + examseriesid + "'                  ,                 st.collegeid='" + collegeid + "'                  group                 tc.courseid  ;

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