动态SQL应用(成绩排名)
Code
-- 年级排名和班级排名
declare @sql varchar(4000),@nclassid int,@nexamid int select @sql='' select @nclassid=38 select @nexamid=19
select @sql=@sql+'max(case scoursename when '''+scoursename+''' then descore else 0 end) '+scoursename+','
from (select distinct scoursename from t_card_course where id in (select ncourseid from t_card_examcou where nclassid =+@nclassid and nexamid=+@nexamid )) a
exec('
select nclassid, name 姓名,'+ @sql+ 'sum(descore) 总分
into #temp
from (
select b.nclassid,b.name,a.descore,c.scoursename from t_card_score a,t_stu b,t_card_course c,t_card_examcou d
where a.nstuid=b.id and a.ncouexamid in
(select id from t_card_examcou where nclassid in (select id from t_card_class where ngradeid =(select ngradeid from t_card_class where id='+@nclassid+' and nschoolid=(select nschoolid from t_card_class where id='+@nclassid+'))) and nexamid='+@nexamid+' )
and a.ncouexamid=d.id and d.ncourseid=c.id group by b.nclassid,b.name,a.descore,c.scoursename )as a
group by name,nclassid
select *,班级名次=(select count(总分) from #temp where 总分>y.总分 and nclassid=y.nclassid)+1 into #tempclass from #temp y
select *,年级名次 =(select count(总分) from #tempclass where 总分>x.总分)+1 into #tempok from #tempclass x where nclassid ='+@nclassid+' order by 班级名次
alter table #tempok drop column nclassid
select * from #tempok
')
-- 年级排名和班级排名
declare @sql varchar(4000),@nclassid int,@nexamid int select @sql='' select @nclassid=38 select @nexamid=19
select @sql=@sql+'max(case scoursename when '''+scoursename+''' then descore else 0 end) '+scoursename+','
from (select distinct scoursename from t_card_course where id in (select ncourseid from t_card_examcou where nclassid =+@nclassid and nexamid=+@nexamid )) a
exec('
select nclassid, name 姓名,'+ @sql+ 'sum(descore) 总分
into #temp
from (
select b.nclassid,b.name,a.descore,c.scoursename from t_card_score a,t_stu b,t_card_course c,t_card_examcou d
where a.nstuid=b.id and a.ncouexamid in
(select id from t_card_examcou where nclassid in (select id from t_card_class where ngradeid =(select ngradeid from t_card_class where id='+@nclassid+' and nschoolid=(select nschoolid from t_card_class where id='+@nclassid+'))) and nexamid='+@nexamid+' )
and a.ncouexamid=d.id and d.ncourseid=c.id group by b.nclassid,b.name,a.descore,c.scoursename )as a
group by name,nclassid
select *,班级名次=(select count(总分) from #temp where 总分>y.总分 and nclassid=y.nclassid)+1 into #tempclass from #temp y
select *,年级名次 =(select count(总分) from #tempclass where 总分>x.总分)+1 into #tempok from #tempclass x where nclassid ='+@nclassid+' order by 班级名次
alter table #tempok drop column nclassid
select * from #tempok
')