sql server - Cursor logic error -


i wrote sp store data 2 tables in second table contain sectionid want distribute student section 

alter proc [dbo].[studentdistribution] -- '6,7,8,9,10','1,2',1,1    ( @puserid varchar(8000), @psectionid varchar(8000), @pclassid int, @pmodifiedby int )     declare @cntr int    set @cntr = (select count(*) split(@puserid,',')) select sum(capacity) sectionsclasses classid=@pclassid , sectionid in (select vitem split(@psectionid,','))  declare fetchstudent cursor select vitem split(@puserid,',')  declare @vuserid  int declare @vsecid int declare @vout_status int declare @vinner_status int          open fetchstudent         fetch next fetchstudent @vuserid         set @vout_status= @@fetch_status          while @vout_status = 0               begin              declare fetchsection cursor             select vitem split(@psectionid,',')                  open fetchsection                     fetch next fetchsection @vsecid                     set @vinner_status= @@fetch_status                     while @vinner_status = 0                      begin                      print(@vuserid)                     print(@vsecid)                       --if @cntr <= 0                     --  break                     --else                     --  set @cntr=@cntr-1                        fetch next fetchstudent @vuserid                     set @vout_status= @@fetch_status                      fetch next fetchsection @vsecid                     set @vinner_status= @@fetch_status                         end                     close fetchsection                     deallocate fetchsection              --if @cntr <= 0             --          break             --      else             --          set @cntr=@cntr-1             fetch next fetchstudent @vuserid              end     close fetchstudent     deallocate fetchstudent

i need result 

6  1 7  2 8  1 9  2 10 1

but got is

6  1 7  2 9  1 10 2

can figure out problem ??

this answer 

 alter proc [dbo].[studentdistribution] --'6,7,8,9,10,11,12,13','1',3,1    ( @puserid varchar(8000), @psectionid varchar(8000), @pclassid int, @pmodifiedby int     )    declare @vcntr int   declare @vcapacity int   set @vcntr = (select count(*) split(@puserid ,',')) select  @vcapacity = sum(capacity) sectionsclasses classid=@pclassid , sectionid in (select vitem split(@psectionid,','))      if @vcntr >  @vcapacity     begin         print('operation cannot complete; number of student exceeds capacity')             return     end  declare fetchstudent cursor  scroll select vitem split(@puserid,',')  declare @vuserid  int declare @vsecid int declare @vout_status int declare @vinner_status int          open fetchstudent         fetch next fetchstudent @vuserid         set @vout_status= @@fetch_status          while (@vout_status = 0 )              begin              declare fetchsection cursor  scroll             select vitem split(@psectionid,',')                  open fetchsection                     fetch next fetchsection @vsecid                     set @vinner_status= @@fetch_status                     while (@vinner_status = 0 )                     begin                      print(@vuserid)                     print(@vsecid)                       fetch next fetchsection @vsecid                     set @vinner_status= @@fetch_status                     --if @vinner_status = -1                     --      break                     fetch next fetchstudent @vuserid                     set @vout_status= @@fetch_status                          if @vout_status = -1                             break                       end                      close fetchsection                     deallocate fetchsection                if @vinner_status =-1             fetch prior fetchstudent @vuserid              fetch next fetchstudent @vuserid             set @vout_status= @@fetch_status              end     close fetchstudent     deallocate fetchstudent

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