分页存储过程代码

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代码如下:

/* 
*@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 int,@pagesize int,@TableName varchar(30),@key varchar(30),@where varchar(50),@order varchar(1),@pageCount int,@str varchar(450) output 
as 
begin 
---------------执行的sql语句------------ 
declare @sql nvarchar(400),@ordreby nvarchar(200) 
declare @tempsql1 varchar(200),@tempsql2 varchar(200) 
---------------记录总数----------------- 
declare @count int 
---------------临时变量------------------------ 
declare @temp1 int,@temp2 int 

set @TableName=' '+@TableName+' ' 
set @key=' '+@key+' ' 

if @order='0' 
set @ordreby=' order by '+@key+'desc' 
else 
set @ordreby=' order by '+@key 

if @where='null' 
set @sql='select @count = count(*) from '+ @TableName 
else 
set @sql='select @count = count(*) from '+ @TableName+' where '+@where 

------------@count 付值(声明变量@count 在说明是output 内型)--------------------------- 
exec sp_executesql @sql,N'@count int out',@count out 
------------求总页数------------------------------ 
if (@count%@pagesize)=0 
set @pagecount=@count/@pagesize 
else 
set @pagecount=@count/@pagesize+1 
-----------判断显示当前页是否异常------------------ 
if @currentpage>@pagecount 
set @currentpage=@pagecount 
if @currentpage<1 
set @currentpage=1 
----------记录数小于页面显示记录数----------------- 
if(@currentpage=1) 
begin 
if @where='null' 
set @where=' ' 
else 
set @where=' where '+@where 
set @sql = 'select top'+ str(@pagesize)+' * from '+@TableName+@where+@ordreby 
end 
else 
begin 
/**//* ---------------desc---------------------- 
*@temp1表示前面的记录 
*@temp2表示后面的记录 
*假设一共77个记录，每次取10个。取67～58（第2页），去掉前面的57（1～57）个和后面的10个（77～66） 
*/ 
if @order=0 
begin 
set @temp1 = @count-@currentpage*@pagesize 
if @temp1<0 
set @temp1=0 
set @temp2 = (@currentpage - 1)*@pagesize 
if @where='null' 
begin 
set @tempsql1='select top ' + str(@temp1)+' '+@key+' from ' + @TableName+' order by ' +@key 
set @tempsql2='select top ' + str(@temp2)+' '+@key+' from ' + @TableName + @ordreby 
end 
else 
begin 
set @tempsql1='select top ' + str(@temp1)+' '+@key+' from ' + @TableName+' where '+@where+' order by ' +@key 
set @tempsql2='select top ' + str(@temp2)+' '+@key+' from ' + @TableName+' where '+@where+@ordreby 
end 
set @sql=' select top ' + str(@pagesize) + ' * from ' + @TableName + ' where '+@key+ ' not in ' 
set @sql= @sql+' ( '+ @tempsql1 +' ) and ' 
set @sql= @sql+@key+ ' not in ( '+@tempsql2 +' ) ' 
if @where='null' 
set @sql= @sql+@ordreby 
else 
set @sql= @sql+' and '+@where+@ordreby 
end 
/**//* ----------------asc--------------------- 
* @temp 表示前面显示的记录总数 
* 去掉 @temp 在取出 pagesize 个即可 
*/ 
else 
begin 
set @temp1=(@currentpage-1)*@pagesize 
if @where='null' 
set @tempsql1='select top '+ str(@temp1)+' '+@key+' from ' + @TableName + @ordreby 
else 
set @tempsql1='select top '+ str(@temp1)+' '+@key+' from ' + @TableName ++' where '+@where+@ordreby 
set @sql=' select top ' + str(@pagesize) + ' * from ' + @TableName + ' where '+@key+ ' not in ' 
set @sql=@sql+' ( '+@tempsql1+' ) ' 
if @where='null' 
set @sql= @sql+@ordreby 
else 
set @sql= @sql+' and '+@where+@ordreby 

end 
/**//* -------------------------------------*/ 
end 
set @str=@sql 
--exec sp_executesql @sql 

end 

GO