sql 导出，解决sheet表大小限制

CREATE proc sqlToMultiExcelFile
@sqlstr nvarchar(4000), --查询语句,如果查询语句中使用了order by ,请加上top 100 percent
@primaryKey varchar(100),--分页主键字段
@path nvarchar(1000), --文件存放目录
@fname nvarchar(250), --文件名
@sheetname varchar(250)='sheet1' --要创建的工作表名,默认为文件名
as
set nocount on
declare @err int,@src nvarchar(255),@out int,@desc nvarchar(255),@sheetCount int,@i int,@topCount int,@where varchar(1000),@from varchar(1000),@myWhere varchar(1000),@filename varchar(250)
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000),@totalCount int,@pageCount int
create table #tbMemory
(
recId int identity(1,1) primary key,
primaryKey varchar(50)
)
create table #pageTb(totalCount int)


set @from=substring(@sqlstr,charindex('from',@sqlstr)+5,len(@sqlstr)-charindex('from',@sqlstr)+1)


if charindex('where',@sqlstr)>0
set @where=substring(@sqlstr,charindex('where',@sqlstr)+6,len(@sqlstr)-charindex('where',@sqlstr)+1)
else
set @where=''


set @pageCount=65000
set @sql='select count(*) from ('+@sqlStr+') a'

insert into #pageTb execute (@sql)
select @totalCount=totalCount from #pageTb

insert into #tbMemory execute('select top '+@totalCount+' '+@primaryKey+' from '+@from)

--得出要导出的sheet数量
if @totalCount>@pageCount
set @sheetCount=@totalCount/@pageCount+1
else
set @sheetCount=1

--参数检测
if isnull(@fname,'')='' set @fname='temp.xls'
if isnull(@sheetname,'')='' set @sheetname=replace(@fname,'.','#')

--检查文件是否已经存在
if right(@path,1)<>'\' set @path=@path+'\'
create table #tb(a bit,b bit,c bit)



--创建表的SQL
declare @tbname sysname
set @tbname='##tmp_'+convert(varchar(38),newid())
set @sql='select top 1 * into ['+@tbname+'] from('+@sqlstr+') a'
--print @sql
exec(@sql)


select @sql='',@fdlist=''
select @fdlist=@fdlist+',['+a.name +']'
,@sql=@sql+',['+a.name+'] '
+ca