企业数据统计分析工作

企业数据统计分析工作

declare @tab1 table(ID int,
单号 varchar(20),
提货日期 datetime,
实发数量 decimal(8,1),
累计 decimal(8,1))
declare @ID int
declare @提货日期 varchar(20)
declare @实发数量 decimal(8,1)
declare @累计 decimal(8,1)

set @累计=0
declare Num_Cursor CURSOR FOR
select * from @tab

open Num_Cursor
fetch next from Num_Cursor into @ID,@单号,@提货日期,@实发数量
wile @@FETCH_STATUS=0
begin
set @累计=@累计+@实发数量
insert @tab1
values(@ID,@单号,@提货日期,@实发数量,@累计)
fetch next from Num_Cursor into @ID,@单号,@提货日期
end

close Num_Cursor

deallocate Num_Cursr

declare Num_Cursor CURSOR FOR
select * from @tab

open Num_Cursor
fetch next from Num_Cursor into @ID,@单号，@提货日期,@实发数量
while @@FETCH_STATUS=0
begin
set @累计=@累计+@实发数量
insert @tab1
values (@ID,@单号,@提货日期,@实发数量,@累计)
fetch next from Num_Cursor into @ID,@单号,@提货日期,@实发数量
end

close Num_Cursor
deallocate Num_Cursor

select * from @tab1

identity identity

select 日期,店铺名,销售量
from DezaiCn_Sale
group by 日期，店铺名，销售量
order by 店铺名

select 店铺名，SUM(销售量) as 总销售量
from DezaiCn_Sale
where (店铺名='A') and (日期 between '2008-1-1' and '2008-9-1')
group by 店铺名

select SUM(销售量) as 销售总量,日期
from DezaiCn_Sale
where (日期='2008-3-1')
group by 日期

Create procedure DezaiCnTestSale_SalerCompareSaleByDate /*代理销售产品比较*/
@ProductIDArray varchar(1000),/*产品ID组*/
@begindate datetime,/*比较开始日期*/
@endDate datetime,/*比较结束时间*/
@shop varchar(20)/*店铺名*/

as
declare @sql varchar(8000)
set @sql='select 产品ID'

select @sql=@sql+',max(case Convert(varchar(10),日期,120) when ''''+Convert(varchar(10),日期,120)+'''' then 销售量 else 0 end)['+Convert(varchar(10),日期,120)+']'

from (select distinct 日期 from DezaiCn_Sale where 日期 between @begindate and @endDate) as a

set @sql=@sql+' from DezaiCn_Sale where 产品ID in ('+@ProductIDArray+') and 店铺名=''''+@shop+''''
group by 产品Id'

exec(@sql)
go

select name,sum(score) as ZCJ
from stuscore
group by name
order by zcj

select distinct t1.name,t1.stuid,t2.allscore
from stuscore t1,
(
select stuid,sum(score) as allscore
from stuscore
group by stuid
) t2
where t1.stuid=t2.stuid
order by t2.allscore desc

select t1.stuid,t1.name,t1.subject,t1.score
from stuscore t1,
(
select stuid,max(score) as maxscore
from stuscore
group by stuid
) t2
where t1.stuid=t2.stuid
and t1.score=t2.maxscore

select distinct t1.stuid,t1.name,t2.avgscore
from stuscore t1,
(
select stuid,avg(score) as avgscore
from stuscore
group by stuid
) t2
where t1.stuid=t2.stuid

select t1.stuid,t1.name,t1.subject,t2.maxscore
from stuscore t1,
(
select subject,max(score) as maxscore
from stuscore
group by subject
) t2
where t1.subject=t2.subject
and t1.score=t2.maxscore

select distinct t1.*
from stuscore t1
where t1.id in(
select top 2 stuscore.id
from stuscore
where subject=t1.subject
order by score desc
)
order by t1.subject

select stuid as 学号,
name as 姓名,
sum(case when subject='语文' then score else 0 end) as'语文',
sum(case when subject='数学' then score else 0 end) as'数学',
sum(case when subject='英语' then score else 0 end) as'英语',
sum(score) as 总分,
(sum(score)/count(*))as 平均分
from stuscore
group by stuid,name
order by 总分 desc

select subject,avg(score) as avgscore
from stuscore
group by subject

declare @tmp table(pm int,name varchar(50),score int,stuid int)
insert into @tmp
select null,name,score,stuid
from stuscore
where subject='数学'
order by score desc
declare @id int
set @id=0;
update @tmp set @id=@id+1,
pm=@id
select * form @tmp where name='李四'

selecdt subject,
(select count(*) from stuscore where score<60 and subject=t1.subject) as 不及格,
(select count(*) from stuscore where score between 60 and 80 and subject=t1.subject) as 良,
(select count(*) from stuscore where score>80 and subject=t1.subject) as 优秀
from stuscore t1
group subject

declare @s varchar(1000)
set @s=''
select @s=@s+','+name+'('+convert(varchar(10),score)+'分)'
from sutuscore
where subject='数学'
set @s=stuff(@s,1,1,'')
print'数学：'+@s

select a.Description,
Record_Count=Count(b.ID),
[Percent]=case
when Counts=0 then '0.00%'
else cast(cast(count(b.ID)*100./c.counts as decimal(10,2)) as varchar)+'%'
end
from(
select sid=1,a=Null,b=30,Description='<30'
union all
select sid=2,a=30,b=60,Description='>30 and <60'
union all
select sid=3,a=60,b=75,Description='>=60 and <75
) a Left join @t b
on(b.col<a.b or a.b is null)
and(b.col>=a.a or a.a is null)
cross join(select counts=count(*) from @t)c
group by a.Description,a.sid,c.counts
order by a.sid

with Form2 do
begin
for i:=0 to ComponentCount-1 do
if(Components[i] is TCustomEdit) then
TCustomEdit(Components[i]).text:=IntToStr(i);
end

procedure TForm2.btnClick(Sender:TObject);
var
sformat:string;
i,iSum:Integer;
ObjArray:array of Integer;
arrayCount:Integer;
temp:string;
begin
arrayCount:=0;
temp:='';
iSum:=0;

sformat:=Trim(edt1.Text);
for i:=1 to Length(sformat) do
begin
if sformat[i] in ['0'..'9'] then
begin
temp:=temp+sformat[i];
if(i=Length(sformat)) then
begin
Inc(arrayCount);

SetLength(ObjArray,arrayCount);
ObjArray[arrayCount-1]:=StrToInt(temp);
end;
end else
begin
if temp<>'' then
begin
Inc(arrayCount);
SetLength(ObjArray,arrayCount);
ObjArray[arrayCount-1]:=StrToInt(temp);
temp:='';
end;
end;
end;

for i:=0 to High(ObjArray) do
begin
edt2.text:=edt2.text+'+'+IntToStr(ObjArray[i]);
Inc(iSum,ObjArray[i]);
end;

edt2.text:=RightStr(edt2.Text,(Lenght(edt2.text)-1))+'='+IntToStr(iSum);
end;