Sybase分页操作存储过程

/*--sybase分页操作--*/

--方法1:

--*********************************************

--按起始记录条数与终结记录条数进行划分

--@sqlStr为普通查询语句，语句中不能包括表中已有

--的Identity类型字段，否则存储过程将不能正常工作

--例:语句可以为select * from TestTable

--*********************************************

if(exists(select * from sysobjects where type = 'P' and name = 'sp_SplitPage1'))

drop proc sp_SplitPage1

go

create procedure sp_SplitPage1

(

@sqlStr varchar(8000), --需要进行查询的数据集

@startRecNum varchar(20), --起始记录行

@endRecNum varchar(20) --结束记录行

)

as

begin

declare @randnum varchar(20)

set @randnum = substring(convert(varchar,rand()),3,10)

set @sqlStr = stuff(@sqlStr,charindex(' from ',@sqlStr),6,' into tempdb..mytemp' + @randnum + ' from ')

execute (@sqlStr)

set @sqlStr = 'alter table tempdb..mytemp' + @randnum + ' add keyId numeric(10) IDENTITY primary key'

execute (@sqlStr)

set @sqlStr = 'select * from tempdb..mytemp' + @randnum + ' where keyId >= ' + @startRecNum

+ ' and keyId <= ' + @endRecNum

execute (@sqlStr)

set @sqlStr = 'drop table tempdb..mytemp' + @randnum

execute (@sqlStr)

end

go

--测试用例

declare @curdate datetime

set @curdate = getdate()

use TestDB

exec sp_SplitPage1 'select ID,Name from TestTable','1','9'

select datediff(millisecond,@curdate,getdate())

go

--方法2:

--*********************************************

--给出当前页数与每页记录数进行分页

--@sqlStr为普通查询语句，语句中不能包括表中已有

--的Identity类型字段，否则存储过程将不能正常工作

--例:语句可以为select * from TestTable

--*********************************************

if(exists(select * from sysobjects where type = 'P' and name = 'sp_SplitPage2'))

drop proc sp_SplitPage2

go

create procedure sp_SplitPage2

(

@sqlStr varchar(8000), --需要进行查询的数据集

@curPage int, --当前页数

@pageNum int --每页记录数

)

as

begin

declare @startRecNum varchar(20)

declare @endRecNum varchar(20)

--set @sqlStr = 'select DevId,OrgId from Device'

set @startRecNum = convert(varchar,(@curPage - 1) * @pageNum + 1)

set @endRecNum = convert(varchar,(@curPage - 1) * @pageNum + @pageNum)

declare @randnum varchar(20)

set @randnum = substring(convert(varchar,rand()),3,10)

set @sqlStr = stuff(@sqlStr,charindex(' from ',@sqlStr),6,' into tempdb..mytemp' + @randnum + ' from ')

execute (@sqlStr)

set @sqlStr = 'alter table tempdb..mytemp' + @randnum + ' add keyId numeric(10) IDENTITY primary key'

execute (@sqlStr)

set @sqlStr = 'select * from tempdb..mytemp' + @randnum + ' where keyId >= ' + @startRecNum

+ ' and keyId <= ' + @endRecNum

execute (@sqlStr)

set @sqlStr = 'drop table tempdb..mytemp' + @randnum

execute (@sqlStr)

end

go

--测试用例

declare @curdate datetime

set @curdate = getdate()

use TestDB

exec sp_SplitPage2 'select ID,Name from TestTable',3,5

select datediff(millisecond,@curdate,getdate())

go