两个分页存储过程

Posted 2021-02-09 zhangyg

1、分页存储过程

Create PROCEDURE [dbo].[PageRead]

@tblName varchar(255), -- 表名 
@strGetFields varchar(1000) = ‘*‘, -- 需要返回的列 
@fldName varchar(255)=‘‘,--主键
@ascName varchar(255)=‘‘, -- 排序的字段名 
@PageSize int , -- 页尺寸 
@PageIndex int, -- 页码 
@doCount bit , -- 返回记录总数, 非 0 值则返回 
@OrderType bit , -- 设置排序类型, 非 0 值则降序 
@strWhere varchar(1500) = ‘‘‘‘ -- 查询条件 (注意: 不要加 where) 
AS 
declare @strSQL varchar(5000) -- 主语句 
declare @strTmp varchar(110) -- 临时变量 
declare @strOrder varchar(400) 
declare @strOrder1 varchar(400) -- 排序类型 
if @doCount != 0 
begin 
if @strWhere !=‘‘‘‘ 
set @strSQL = ‘select count(*) as Total from [‘ + @tblName + ‘] where ‘[email protected] 
else 
set @strSQL = ‘select count(*) as Total from [‘ + @tblName + ‘]‘ 
end 
--以上代码的意思是如果@doCount传递过来的不是0，就执行总数统计。以下的所有代码都是@doCount为0的情况

else 
begin 
if @OrderType != 0 
begin 
set @strTmp = ‘<(select min‘ 
set @strOrder = ‘ order by [‘ + @fldName +‘] desc‘ 
set @strOrder1 = ‘ order by [‘ + @ascName +‘] desc‘ 
--如果@OrderType不是0，就执行降序，这句很重要！ 
end 
else 
begin 
set @strTmp = ‘>(select max‘ 
set @strOrder = ‘ order by [‘ + @fldName +‘] asc‘ 
set @strOrder1 = ‘ order by [‘ + @ascName +‘] asc‘ 
end 
if @PageIndex = 1 
begin 
if @strWhere != ‘‘‘‘ 
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from [‘ + @tblName + ‘] where ‘ + @strWhere + ‘ ‘ + @strOrder

else 
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from [‘+ @tblName + ‘] ‘+ @strOrder 
--如果是第一页就执行以上代码，这样会加快执行速度 
end 
else 
begin--以下代码赋予了@strSQL以真正执行的SQL代码 
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from [‘+ @tblName + ‘] where [‘ + @fldName + ‘]‘ + @strTmp + ‘([‘+ @fldName + ‘]) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ [‘+ @fldName + ‘] from [‘ + @tblName + ‘]‘ + @strOrder + ‘) as tblTmp)‘+ @strOrder1

if @strWhere !=‘‘
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from [‘ + @tblName + ‘] where [‘ + @fldName + ‘]‘ + @strTmp + ‘([‘ + @fldName + ‘]) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ [‘ + @fldName + ‘] from [‘ + @tblName + ‘] where ‘ + @strWhere + ‘ ‘ + @strOrder + ‘) as tblTmp) and ‘ + @strWhere + ‘ ‘ + @strOrder1

end

if @strWhere !=‘‘ --得到记录的总行数

set @strSQL [email protected]+ ‘; select count(*) as Total from [‘ + @tblName + ‘] where ‘+ @strWhere

else

set @strSQL [email protected]+ ‘; select count(*) as Total from [‘ + @tblName + ‘]‘

end 
exec (@strSQL)

 

2、分页存储过程

 Create PROCEDURE [dbo].[newpPageSel](@start int,@pageSize int)
AS
BEGIN 
declare @sql nvarchar(max)
set @sql=‘select top ‘+str(@pageSize)+‘ username,name,erpBook,hrs,newpro,fixed,sales,skperm,financial,supply ‘+
‘from dbo.tblpermission where username not in (‘+
‘select top ‘+str(@start)+‘ username from dbo.tblpermission order by username)‘+
‘ order by username‘
execute(@sql)  --因select top后不支技直接接参数，所以写成了字符串@sql
--select @sql
END