如题,我有一个oracle的分页存储过程,现在数据库换成sql2005的了,小弟不才,对数据库不了解。所以请大家帮忙修改一下。多谢!!!!不多说,贴代码~create or replace procedure sp_WebPager(p_PageSize int, --每页记录数
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar, --查询语句,含排序部分
p_SqlSelectCount varchar, --取记录总个数的SQL,如果空不取
p_OutRecordCount out int,--返回总记录数
p_OutCursor out sys_refcursor)
as
v_sql varchar(3000);
v_count int;
v_pageNo int;
v_heiRownum int;
v_lowRownum int;
begin
v_count := 0;
v_pageNo := p_PageNo; ----取记录总数
if p_SqlSelectCount > ' ' then
v_sql := p_SqlSelectCount;
execute immediate v_sql into v_count; --计算当前页码
if(p_PageNo > 1 and ((p_PageNo - 1) * p_PageSize + 1) > v_count) then
v_pageNo := ceil(v_count / p_PageSize);
end if;
end if;
p_OutRecordCount := v_count; ----执行分页查询
v_heiRownum := v_pageNo * p_PageSize;
v_lowRownum := v_heiRownum - p_PageSize + 1; v_sql := 'SELECT *
FROM (
SELECT A.*, rownum rn
FROM ('|| p_SqlSelect ||') A
WHERE rownum <= '|| to_char(v_heiRownum) || '
) B
WHERE rn >= ' || to_char(v_lowRownum) ;
--注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn OPEN p_OutCursor FOR v_sql;end sp_WebPager;
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar, --查询语句,含排序部分
p_SqlSelectCount varchar, --取记录总个数的SQL,如果空不取
p_OutRecordCount out int,--返回总记录数
p_OutCursor out sys_refcursor)
as
v_sql varchar(3000);
v_count int;
v_pageNo int;
v_heiRownum int;
v_lowRownum int;
begin
v_count := 0;
v_pageNo := p_PageNo; ----取记录总数
if p_SqlSelectCount > ' ' then
v_sql := p_SqlSelectCount;
execute immediate v_sql into v_count; --计算当前页码
if(p_PageNo > 1 and ((p_PageNo - 1) * p_PageSize + 1) > v_count) then
v_pageNo := ceil(v_count / p_PageSize);
end if;
end if;
p_OutRecordCount := v_count; ----执行分页查询
v_heiRownum := v_pageNo * p_PageSize;
v_lowRownum := v_heiRownum - p_PageSize + 1; v_sql := 'SELECT *
FROM (
SELECT A.*, rownum rn
FROM ('|| p_SqlSelect ||') A
WHERE rownum <= '|| to_char(v_heiRownum) || '
) B
WHERE rn >= ' || to_char(v_lowRownum) ;
--注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn OPEN p_OutCursor FOR v_sql;end sp_WebPager;
SELECT TOP 页记录数量 *
FROM 表名
WHERE (ID NOT IN
(SELECT TOP (每页行数*(页数-1)) ID
FROM 表名
ORDER BY ID))
ORDER BY ID
//自己还可以加上一些查询条件
例:
select top 2 *
from Sys_Material_Type
where (MT_ID not in
(select top (2*(3-1)) MT_ID from Sys_Material_Type order by MT_ID))
order by MT_ID 2.分页方案二:(利用ID大于多少和SELECT TOP分页) 语句形式:
SELECT TOP 每页记录数量 *
FROM 表名
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 每页行数*页数 id FROM 表
ORDER BY id) AS T)
)
ORDER BY ID 例:
SELECT TOP 2 *
FROM Sys_Material_Type
WHERE (MT_ID >
(SELECT MAX(MT_ID)
FROM (SELECT TOP (2*(3-1)) MT_ID
FROM Sys_Material_Type
ORDER BY MT_ID) AS T))
ORDER BY MT_ID 3.分页方案三:(利用SQL的游标存储过程分页)
create procedure SqlPager
@sqlstr nvarchar(4000), --查询字符串
@currentpage int, --第N页
@pagesize int --每页行数
as
set nocount on
declare @P1 int, --P1是游标的id
@rowcount int
exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1, @rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) as 总页数--,@rowcount as 总行数,@currentpage as 当前页
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize
exec sp_cursorclose @P1
set nocount off 4.总结:
其它的方案:如果没有主键,可以用临时表,也可以用方案三做,但是效率会低。
建议优化的时候,加上主键和索引,查询效率会提高。 通过SQL 查询分析器,显示比较:我的结论是:
分页方案二:(利用ID大于多少和SELECT TOP分页)效率最高,需要拼接SQL语句
分页方案一:(利用Not In和SELECT TOP分页) 效率次之,需要拼接SQL语句
分页方案三:(利用SQL的游标存储过程分页) 效率最差,但是最为通用
create procedure sp_WebPager(
p_PageSize int, --每页记录数
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar, --查询语句,含排序部分
p_SqlSelectCount varchar, --取记录总个数的SQL,如果空不取
p_OutRecordCount out int,--返回总记录数
p_OutCursor out sys_refcursor)
as
v_sql varchar(3000);
v_count int;
v_pageNo int;
v_heiRownum int;
v_lowRownum int;
begin
set v_count = 0;
set v_pageNo = p_PageNo; ----取记录总数
if p_SqlSelectCount > ' ' then
set v_sql = p_SqlSelectCount;
execute immediate v_sql into v_count; --计算当前页码
if(p_PageNo > 1 and ((p_PageNo - 1) * p_PageSize + 1) > v_count) then
set v_pageNo = ceil(v_count / p_PageSize);
end if;
end if;
set p_OutRecordCount = v_count; ----执行分页查询
set v_heiRownum = v_pageNo * p_PageSize;
set v_lowRownum = v_heiRownum - p_PageSize + 1; sety v_sql = 'SELECT *
FROM (
SELECT A.*, rownum rn
FROM ('p_SqlSelect') A
WHERE rownum <= 'convert(varchar(10),v_heiRownum) '
) B
WHERE rn >= ' convert(varchar(10),v_lowRownum)' ;
--注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn OPEN p_OutCursor FOR v_sql;end ;
create procedure sp_WebPager(
p_PageSize int, --每页记录数
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar, --查询语句,含排序部分
p_SqlSelectCount varchar, --取记录总个数的SQL,如果空不取
p_OutRecordCount out int,--返回总记录数
p_OutCursor out sys_refcursor)
as
v_sql varchar(3000);
v_count int;
v_pageNo int;
v_heiRownum int;
v_lowRownum int;
begin
set v_count = 0;
set v_pageNo = p_PageNo; ----取记录总数
if p_SqlSelectCount > ' ' then
set v_sql = p_SqlSelectCount;
execute immediate v_sql into v_count; --计算当前页码
if(p_PageNo > 1 and ((p_PageNo - 1) * p_PageSize + 1) > v_count) then
set v_pageNo = ceil(v_count / p_PageSize);
end if;
end if;
set p_OutRecordCount = v_count; ----执行分页查询
set v_heiRownum = v_pageNo * p_PageSize;
set v_lowRownum = v_heiRownum - p_PageSize + 1; set v_sql = 'SELECT *
FROM (
SELECT A.*, rownum rn
FROM ('p_SqlSelect') A
WHERE rownum <= 'convert(varchar(10),v_heiRownum) '
) B
WHERE rn >= ' convert(varchar(10),v_lowRownum)' ;
--注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn OPEN p_OutCursor FOR v_sql;end ;
p_PageSize int, --每页记录数
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar, --查询语句,含排序部分
p_SqlSelectCount varchar, --取记录总个数的SQL,如果空不取
p_OutRecordCount out int,--返回总记录数
p_OutCursor out sys_refcursor)
as
v_sql varchar(3000);
v_count int;
v_pageNo int;
v_heiRownum int;
v_lowRownum int;
begin
set v_count = 0;
set v_pageNo = p_PageNo; ----取记录总数
if p_SqlSelectCount > ' ' then
set v_sql = p_SqlSelectCount;
execute immediate v_sql into v_count; --计算当前页码
if(p_PageNo > 1 and ((p_PageNo - 1) * p_PageSize + 1) > v_count) then
set v_pageNo = ceil(v_count / p_PageSize);
end if;
end if;
set p_OutRecordCount = v_count; ----执行分页查询
set v_heiRownum = v_pageNo * p_PageSize;
set v_lowRownum = v_heiRownum - p_PageSize + 1; set v_sql = 'SELECT *
FROM (
SELECT A.*, rownum rn
FROM ('p_SqlSelect') A
WHERE rownum <= 'convert(varchar(10),v_heiRownum) '
) B
WHERE rn >= ' convert(varchar(10),v_lowRownum)'';
--注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn OPEN p_OutCursor FOR v_sql;end ;
if p_SqlSelectCount > ' ' then
v_sql := p_SqlSelectCount;
execute immediate v_sql into v_count;select count(1) from 你的table