/*
*@curentpage 当前页
*@pagesize 每页记录数
*@TableName 表名
*@key 主键(自动排序)
*@where 查询条件
1)空为 null
2)有查询条件不要带where
*@order '0'表示 desc '1'是asc
*@pageCount 总页数
*/
create procedure Page
@currentpage
,@pagesize , @TableName varchar(30),@key varchar(30),
@where varchar(50),@order varchar(1),
@pageCount
,@str varchar(450) output as
begin
---------------执行
sql语句------------ declare @sql nvarchar(400),@ordreby nvarchar(200)
declare @tempsql1 varchar(200),@tempsql2 varchar(200)
---------------记录总数-----------------
declare @count
---------------临时变量------------------------
declare @temp1
,@temp2 
@TableName=' '+@TableName+' ' @key=' '+@key+' ' 
@order='0' @ordreby=' order by '+@key+'desc' 
@ordreby=' order by '+@key @where='null' @sql='select @count = count(*) from '+ @TableName @sql='select @count = count(*) from '+ @TableName+' where '+@where ------------@count 付值(声明变量@count 在介绍说明是output 内型)---------------------------
exec sp_executesql @sql,N'@count
out',@count out ------------求总页数------------------------------
(@count%@pagesize)=0 @pagecount=@count/@pagesize @pagecount=@count/@pagesize+1 -----------判断显示当前页是否异常------------------
@currentpage>@pagecount @currentpage=@pagecount @currentpage<1 @currentpage=1 ----------记录数小于页面显示记录数-----------------
(@currentpage=1) begin
@where='null' @where=' ' @where=' where '+@where @sql = 'select top'+ str(@pagesize)+' * from '+@TableName+@where+@ordreby end
begin
/**//* ---------------desc----------------------
*@temp1表示前面
记录 *@temp2表示后面
记录 *假设
共77个记录
每次取10个
取67～58(第2页)去掉前面57(1～57)个和后面10个(77～66) */
@order=0 begin
@temp1 = @count-@currentpage*@pagesize @temp1<0 @temp1=0 @temp2 = (@currentpage - 1)*@pagesize @where='null' begin
@tempsql1='select top ' + str(@temp1)+' '+@key+' from ' + @TableName+' order by ' +@key @tempsql2='select top ' + str(@temp2)+' '+@key+' from ' + @TableName + @ordreby end
begin
@tempsql1='select top ' + str(@temp1)+' '+@key+' from ' + @TableName+' where '+@where+' order by ' +@key @tempsql2='select top ' + str(@temp2)+' '+@key+' from ' + @TableName+' where '+@where+@ordreby end
@sql=' select top ' + str(@pagesize) + ' * from ' + @TableName + ' where '+@key+ ' not in ' @sql= @sql+' ( '+ @tempsql1 +' ) and ' @sql= @sql+@key+ ' not in ( '+@tempsql2 +' ) ' @where='null' @sql= @sql+@ordreby @sql= @sql+' and '+@where+@ordreby end
/**//* ----------------asc---------------------
* @temp 表示前面显示
记录总数 * 去掉 @temp 在取出 pagesize 个即可
*/
begin
@temp1=(@currentpage-1)*@pagesize @where='null' @tempsql1='select top '+ str(@temp1)+' '+@key+' from ' + @TableName + @ordreby @tempsql1='select top '+ str(@temp1)+' '+@key+' from ' + @TableName 
' where '+@where+@ordreby @sql=' select top ' + str(@pagesize) + ' * from ' + @TableName + ' where '+@key+ ' not in ' @sql=@sql+' ( '+@tempsql1+' ) ' @where='null' @sql= @sql+@ordreby @sql= @sql+' and '+@where+@ordreby end
/**//* -------------------------------------*/
end
@str=@sql --exec sp_executesql @sql
end
GO
最新评论