SQL分页语句三方案

时间:2023-03-08 19:13:56
SQL分页语句三方案

方法一:

SELECT TOP 页大小 *
FROM table1
WHERE id NOT IN
(
SELECT TOP 页大小*(页数-1) id FROM table1 ORDER BY id
)
ORDER BY id

方法二:

SELECT TOP 页大小 *
FROM table1
WHERE id >
(
SELECT ISNULL(MAX(id),0)
FROM
(
SELECT TOP 页大小*(页数-1) id FROM table1 ORDER BY id
) A
)
ORDER BY id

方法二倒序:

SELECT TOP 页大小 *
FROM table1
WHERE ID <=
(
SELECT ISNULL(MIN(ID),(SELECT MAX(ID) FROM table1 ))
FROM
(
SELECT TOP (页大小*(页数-1)) ID FROM tbl_files ORDER BY ID DESC
) A
)
ORDER BY ID DESC

方法三:

SELECT TOP 页大小 *
FROM
(
SELECT ROW_NUMBER() OVER (ORDER BY id) AS RowNumber,* FROM table1
) A
WHERE RowNumber > 页大小*(页数-1)

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

例子:

以下轉載至http://www.cnblogs.com/zcttxs/archive/2012/04/01/2429151.html

2.几种典型的分页sql,下面例子是每页50条,198*50=9900,取第199页数据。

 :row_number()  over()
select top * from (
select Row_Number() over(order by id) as rownumber ,* from table)a
where rownumber > select * from (
select row_number() over(order by id)as rownumber,*from table)a
where rownumber > adn rownuber< not in select top * from table
where id not in (select top id from table order by id)
order by id

    ALTER PROCEDURE   存儲過程名
( @tbName VARCHAR(), --表名
@tbGetFields VARCHAR()= '*',--返回字段
@OrderfldName VARCHAR(), --排序的字段名
@PageSize INT=, --页尺寸
@PageIndex INT=, --页码
@OrderType bit = , --0升序,非0降序
@strWhere VARCHAR()='', --查询条件
--@TotalCount INT OUTPUT --返回总记 )
AS BEGIN
DECLARE @strSql VARCHAR() --主语句
DECLARE @strSqlCount NVARCHAR()--查询记录总数主语句
DECLARE @strOrder VARCHAR() -- 排序类型
IF ISNULL(@strWhere,'')<>''
set @strSqlCount='select @TotalCout=count(*) from '+@tbName+'
where ='+@strWhere
else set @strSqlCount='select @TotalCount=count(*) from '+@tbName ------分頁
IF @PageIndex <= set @PageIndex =
IF(@OrderType<>) set @strOrder='ORDER BY'+@OrderfldName+'DESC'
ELSE SET @strOrder=' ORDER by'+@OrderfldName+' ASC' SET @strSql='SELECT * FROM
(SELECT ROW_NUMBER() OVER('+@strOrder+') RowNo,'+@tbGetFields+'FROM'+@tbName +' WHERE ='+@strWhere+')tb
where tb.RowNo between '+str((@PageIndex-1)*PageSize+1)+'AND'
+str(@PageIndex * @PageSize) exec(@strSql)
select @TotalCount
end

利用存儲過程sql分頁