Sql Server统计报表案例

场景：查询人员指定年月工作量信息

USE [Test]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER  procedure [dbo].[GetWorkLoadMain]
@year int,
@month int,
@UserId varchar(50)
as
begin
    declare @day varchar(50)
    set @day=CAST(@year as varchar)+'-'+RIGHT((''+cast(@month as varchar)),2)+'-01'

declare @sql varchar(max)
set @sql=''

select @sql=@sql+',['+Rtrim(ProjectName)+'] int NULL DEFAULT 0  '  from
( select distinct ProjectName from ProRecord  where TypeCode=0 and year(InsertTime)=@year  and month(InsertTime)=@month  ) t
set @sql=stuff( @sql,1,1,'') 

create table  #temp (日期 varchar(50))
    declare @count int
    set @count=(select COUNT(1) from ProRecord  where TypeCode=0 and year(InsertTime)=@year  and month(InsertTime)=@month )
        if @count>0
        begin
        exec (' alter table  #temp   add  '+@sql+'')
        end

insert into #temp(日期)
select convert(varchar(10),dateadd(dd,number,convert(varchar(8),@day,120)+''),120) as time
from master..spt_values
where type='P' and
dateadd(dd,number,convert(varchar(8),@day,120)+'')<=dateadd(dd,-1,convert(varchar(8),dateadd(mm,1,@day),120)+'')

declare @日期  varchar(50)
declare @ProjectName  varchar(50)
declare @num int
declare @ru1 varchar(50)
if(ISNULL(@UserId,'')<>'')
     begin
        declare mycursor cursor for select CONVERT(varchar(10),InsertTime,23) as 日期,ProjectName, count(1) as num from ProRecord where UserId= @UserId and TypeCode=0 and year(InsertTime)=@year  and month(InsertTime)=@month group by CONVERT(varchar(10),InsertTime,23) ,ProjectName
     end
else
     begin
        declare mycursor cursor for select CONVERT(varchar(10),InsertTime,23) as 日期,ProjectName, count(1) as num from ProRecord where TypeCode=0 and year(InsertTime)=@year  and month(InsertTime)=@month group by CONVERT(varchar(10),InsertTime,23) ,ProjectName
     end

open mycursor
fetch next from mycursor into @日期,  @ProjectName,@num
while (@@fetch_status=0)
begin
    set  @ru1 =Rtrim(@ProjectName)
            exec ('update #temp set ['+@ru1+']='+@num+'  where 日期='+''''+@日期+''''+'  ' )
            fetch next from mycursor into  @日期,  @ProjectName, @num
end
close mycursor  

DEALLOCATE mycursor   

end 

declare @sqlnew varchar(8000)
set @sqlnew=''
select @sqlnew=@sqlnew+',sum(cast('+name+' as int)) as '+name from tempdb.dbo.syscolumns where id=object_id('tempdb.dbo.#temp') and name not in('日期') order by colid     --写不要汇总的列名

exec ('select * from #temp  where 1=1  union all select ''合计'' as 日期'+@sqlnew+' from #temp  ')

--exec [GetWorkLoadMain] 2017,6,''
--exec [GetWorkLoadMain] 2017,6,'admin'

呈现效果：

分析：

1.行转列

declare @sql varchar(max)
set @sql=''

select @sql=@sql+',['+Rtrim(ProjectName)+'] int NULL DEFAULT 0 ' from
( select distinct ProjectName from ProRecord where TypeCode=0 and year(InsertTime)=@year and month(InsertTime)=@month ) t
set @sql=stuff( @sql,1,1,'')

create table #temp (日期 varchar(50))
exec (' alter table #temp add '+@sql+'')

2.查询当前日期所在月份所有日期

select convert(varchar(10),dateadd(dd,number,convert(varchar(8),'2017-06-01',120)+''),120) as time
from master..spt_values
where type='P' and
dateadd(dd,number,convert(varchar(8),'2017-06-01',120)+'')<=dateadd(dd,-1,convert(varchar(8),dateadd(mm,1,'2017-06-01'),120)+'')

3.游标处理数据

declare @日期 varchar(50)
declare @ProjectName varchar(50)
declare @num int
declare @ru1 varchar(50)
declare mycursor cursor for select CONVERT(varchar(10),InsertTime,23) as 日期,ProjectName, count(1) as num from ProRecord where UserId= @UserId and TypeCode=0 and year(InsertTime)=@year and month(InsertTime)=@month group by CONVERT(varchar(10),InsertTime,23) ,ProjectName
open mycursor
fetch next from mycursor into @日期, @ProjectName,@num
while (@@fetch_status=0)
begin
set @ru1 =Rtrim(@ProjectName)
exec ('update #temp set ['+@ru1+']='+@num+' where 日期='+''''+@日期+''''+' ' )
fetch next from mycursor into @日期, @ProjectName, @num
end
close mycursor

DEALLOCATE mycursor

end

4.对动态列临时表进行汇总查询

注意：对于临时表，查询需加前缀 tempdb

declare @sqlnew varchar(8000)
set @sqlnew=''
select @sqlnew=@sqlnew+',sum('+name+' )  as '+name from tempdb.dbo.syscolumns where id=object_id('tempdb.dbo.#temp') and name not in('日期') order by colid --写不要汇总的列名

exec ('select ''合计'' as 日期'+@sqlnew+' from #temp ')