Procedimiento almacenado de paginación de base de datos, que admite consultas conjuntas de varias tablas
CREATE PROCEDURE [dbo].[getInQuiryAllByPage]
@tableNames varchar(5000), --表名,可多表,逗号分隔
@tbFields varchar(5000)= '* ',--字段名,如果多表请带前缀
@conditionStr varchar(5000)= ' ', --where子句,可为空,不带where
@sortedStr varchar(5000), --排序字段,可多个,要带desc或asc,不带order by,必须,不能为空
--排序字段不能有空值,或者在where中排除空值或者用isnull函数解决
@needCount bit = 1, --是否需要得到纪录总数
@pageIndex int =0, --页索引
@pageSize int=10, --页大小
@recordCount int =0 output, --返回纪录总数
@pageCount int =0 output --返回页总数
AS
BEGIN
declare @sql nvarchar(4000) --主sql语句
declare @sortStr2 varchar(8000) --order by子句
declare @sortStr3 varchar(8000) --order by子句
declare @sortStr4 varchar(8000) --order by子句
declare @whereStr nvarchar(4000) --条件
declare @sortStr nvarchar(4000) --条件
set @sortStr = LOWER(@sortedStr)
set @sortStr2 = REPLACE(@sortStr, 'desc', ' @a@ ')
set @sortStr2 = REPLACE(@sortStr2, 'asc', ' @d@ ')
set @sortStr2 = REPLACE(@sortStr2, ' @a@ ', ' asc ')
set @sortStr2 = REPLACE(@sortStr2, ' @d@ ', ' desc ')
--------------------------------------------------------------
set @sortStr4 = @sortStr2
set @sortStr2 = REPLACE(@sortStr2,'a.',' ')
set @sortStr2 = REPLACE(@sortStr2,'b.',' ')
set @sortStr2 = REPLACE(@sortStr2,'c.',' ')
set @sortStr2 = REPLACE(@sortStr2,'e.',' ')
set @sortStr2 = REPLACE(@sortStr2,'f.',' ')
set @sortStr2 = REPLACE(@sortStr2,'g.',' ')
set @sortStr3 = @sortStr
set @sortStr3 = REPLACE(@sortStr3,'a.',' ')
set @sortStr3 = REPLACE(@sortStr3,'b.',' ')
set @sortStr3 = REPLACE(@sortStr3,'c.',' ')
set @sortStr3 = REPLACE(@sortStr3,'e.',' ')
set @sortStr3 = REPLACE(@sortStr3,'f.',' ')
set @sortStr3 = REPLACE(@sortStr3,'g.',' ')
--------------------------------------------------------------
set @sortStr = ' order by ' + @sortStr
set @sortStr2 = ' order by ' + @sortStr2
set @sortStr3 = ' order by ' + @sortStr3
set @sortStr4 = ' order by ' + @sortStr4
if(@conditionStr is not null and @conditionStr != ' ' )
set @whereStr = ' where ' + @conditionStr
else
set @whereStr = ' '
--if(@needCound != 0 or @pageIndex = 0 ) --以下获得纪录总数
begin
DECLARE @R int
SET @sql= 'select @R=count(*) from '+@tableNames + @whereStr
EXEC SP_EXECUTESQL @SQL,N'@R int OUTPUT ',@R OUTPUT
SET @recordCount = @R
set @pageCount = ((@recordCount-1)/@pageSize)+1
end
if(@pageIndex <2) --如果是第一页
begin
set @pageIndex = 1
set @sql= 'select top '+ str(@pageSize)
+ ' '+ @tbFields + ' from ' + @tableNames
+ @whereStr + @sortStr;
end
else --其它页
begin
if( @recordCount>@pageIndex*@pageSize)
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>SET @sql= 'SELECT * FROM ( '
<span style="white-space:pre"> </span>+ 'SELECT TOP ' + STR(@pageSize) + ' * FROM ( '
<span style="white-space:pre"> </span>+ 'select top ' + STR(@pageSize*@pageIndex) + ' '+ @tbFields + ' FROM '
<span style="white-space:pre"> </span>+ @tableNames + @whereStr + @sortStr + ') as a '
<span style="white-space:pre"> </span>+ @sortStr2 + ') as b ' + @sortStr3
else
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>SET @sql= ' select * FROM ('
+ ' SELECT top '+ STR(@recordCount-@pageSize*(@pageCount-1))
<span style="white-space:pre"> </span>+ ' '+ @tbFields + ' FROM '
<span style="white-space:pre"> </span>+ @tableNames + @whereStr + @sortStr4 + ' ) AS a'
+ @sortStr3
end
print @sql
EXEC SP_EXECUTESQL @sql
END