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sql server 2000 单主键高效分页存储过程

Posted on 2009-06-14 22:09  nzperfect  阅读(2355)  评论(6编辑  收藏  举报
Create PROC P_viewPage         
    
/*          
    nzperfect [no_mIss] 高效通用分页存储过程(双向检索) 2007.5.7        
    敬告:适用于单一主键或存在唯一值列的表或视图          
    ps:Sql语句为8000字节,调用时请注意传入参数及sql总长度不要超过指定范围          
    
*/
          
    
@TableName VARCHAR(200),     --表名          
    @FieldList VARCHAR(2000),    --显示列名,如果是全部字段则为*          
    @PrimaryKey VARCHAR(100),    --单一主键或唯一值键          
    @Where VARCHAR(2000),        --查询条件 不含'where'字符,如id>10 and len(userid)>9          
    @Order VARCHAR(1000),        --排序 不含'order by'字符,如id asc,userid desc,必须指定asc或desc          
    --注意当@SortType=3时生效,记住一定要在最后加上主键,否则会让你比较郁闷          
    @SortType INT,               --排序规则 1:主键/唯一值正序asc 2:主键/唯一值倒序desc 3:非主键或多列排序方法          
    @RecorderCount INT,          --记录总数 0:会返回总记录          
    @PageSize INT,               --每页输出的记录数          
    @PageIndex INT,              --当前页数          
    @TotalCount INT OUTPUT ,      --记返回总记录          
    @TotalPageCount INT OUTPUT   --返回总页数          
AS          
SET NOCOUNT ON          
    
IF ISNULL(@TotalCount,''= '' SET @TotalCount = 0          
    
SET @Order = RTRIM(LTRIM(@Order))          
    
SET @PrimaryKey = RTRIM(LTRIM(@PrimaryKey))          
    
SET @FieldList = REPLACE(RTRIM(LTRIM(@FieldList)),' ','')          
    
WHILE CHARINDEX('',@Order> 0 or CHARINDEX(' ,',@Order> 0          
        
BEGIN          
            
SET @Order = REPLACE(@Order,'',',')          
            
SET @Order = REPLACE(@Order,' ,',',')          
        
END          
    
IF ISNULL(@TableName,''= '' or ISNULL(@FieldList,''= ''          
            
or ISNULL(@PrimaryKey,''= ''          
            
or @SortType < 1 or @SortType >3          
            
or @RecorderCount  < 0 or @PageSize < 0 or @PageIndex < 0          
        
BEGIN          
            
PRINT('ERR_00')          
            
RETURN          
        
END          
    
IF @SortType = 3          
        
BEGIN          
            
IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC')          
                
BEGIN PRINT('ERR_02'RETURN END          
        
END          
    
DECLARE @new_where1 VARCHAR(1000)          
    
DECLARE @new_where2 VARCHAR(1000)          
    
DECLARE @new_order1 VARCHAR(1000)          
    
DECLARE @new_order2 VARCHAR(1000)          
    
DECLARE @new_order3 VARCHAR(1000)          
    
DECLARE @Sql VARCHAR(8000)          
    
DECLARE @SqlCount NVARCHAR(4000)          
    
IF ISNULL(@where,''= ''          
        
BEGIN          
            
SET @new_where1 = ' '          
            
SET @new_where2 = ' Where  '          
        
END          
    
ELSE          
        
BEGIN          
            
SET @new_where1 = ' Where ' + @where          
            
SET @new_where2 = ' Where ' + @where + ' AND '          
        
END          
    
IF ISNULL(@order,''= '' or @SortType = 1  or @SortType = 2          
        
BEGIN          
            
IF @SortType = 1          
                
BEGIN          
                    
SET @new_order1 = ' orDER BY ' + @PrimaryKey + ' ASC'          
                    
SET @new_order2 = ' orDER BY ' + @PrimaryKey + ' DESC'          
                
END          
            
IF @SortType = 2          
                
BEGIN          
                    
SET @new_order1 = ' orDER BY ' + @PrimaryKey + ' DESC'          
                    
SET @new_order2 = ' orDER BY ' + @PrimaryKey + ' ASC'          
                
END          
        
END          
    
ELSE          
        
BEGIN          
            
SET @new_order1 = ' orDER BY ' + @Order          
        
END          
    
    
IF @SortType = 3 AND  CHARINDEX(','+@PrimaryKey+' ',','+@Order)>0          
    
BEGIN          
        
SET @new_order1 = ' orDER BY ' + @Order          
        
SET @new_order2 = @Order + ','          
        
SET @new_order2 = REPLACE(REPLACE(@new_order2,'ASC,','{ASC},'),'DESC,','{DESC},')          
        
SET @new_order2 = REPLACE(REPLACE(@new_order2,'{ASC},','DESC,'),'{DESC},','ASC,')          
        
SET @new_order2 = ' orDER BY ' + SUBSTRING(@new_order2,1,LEN(@new_order2)-1)          
        
IF @FieldList <> '*'          
            
BEGIN          
                
SET @new_order3 = REPLACE(REPLACE(@Order + ',','ASC,',','),'DESC,',',')          
                
SET @FieldList = ',' + @FieldList          
                
WHILE CHARINDEX(',',@new_order3)>0          
                    
BEGIN          
                        
IF CHARINDEX(SUBSTRING(','+@new_order3,1,CHARINDEX(',',@new_order3)),','+@FieldList+',')>0          
                            
BEGIN          
                                
SET @FieldList =          
                                
@FieldList + ',' + SUBSTRING(@new_order3,1,CHARINDEX(',',@new_order3))          
                            
END          
                        
SET @new_order3 =          
                        
SUBSTRING(@new_order3,CHARINDEX(',',@new_order3)+1,LEN(@new_order3))          
                    
END          
                
SET @FieldList = SUBSTRING(@FieldList,2,LEN(@FieldList))          
            
END          
        
END     
         
    
SET @SqlCount = 'Select @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/'          
    
+ CAST(@PageSize AS VARCHAR)+') FROM (Select * FROM ' + @TableName + @new_where1+') AS T'          
    
IF @RecorderCount  = 0          
        
BEGIN          
            
EXEC SP_EXECUTESQL @SqlCount,N'@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT',          
            
@TotalCount OUTPUT,@TotalPageCount OUTPUT          
        
END          
    
ELSE          
        
BEGIN          
            
Select @TotalCount = @RecorderCount        
        
END          
    
IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize)          
        
BEGIN          
            
SET @PageIndex =  CEILING((@TotalCount+0.0)/@PageSize)          
        
END          
    
IF @PageIndex = 1 or @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)          
        
BEGIN          
            
IF @PageIndex = 1 --返回第一页数据          
                BEGIN          
                    
SET @Sql = 'Select * FROM (Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM '          
                    
+ @TableName + @new_where1 + @new_order1 +') AS TMP ' + @new_order1    
                
END          
            
IF @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)  --返回最后一页数据          
                BEGIN          
                    
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ('          
                    
+ 'Select TOP ' + STR(ABS(@PageSize*@PageIndex-@TotalCount-@PageSize))          
                    
+ ' ' + @FieldList + ' FROM '          
                    
+ @TableName + @new_where1 + @new_order2 + ' ) AS TMP '          
                    
+ @new_order1          
                
END          
        
END          
    
ELSE      
            
        
BEGIN          
        
IF @SortType = 1  --仅主键正序排序          
            BEGIN          
                
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索          
                    BEGIN          
                        
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM '          
                        
+ @TableName + @new_where2 + @PrimaryKey + ' > '          
                        
+ '(Select MAX(' + @PrimaryKey + ') FROM (Select TOP '          
                        
+ STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey          
                        
+ ' FROM ' + @TableName          
                        
+ @new_where1 + @new_order1 +' ) AS TMP) '+ @new_order1          
                    
END          
                
ELSE  --反向检索          
                    BEGIN          
                        
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ('          
                        
+ 'Select TOP ' + STR(@PageSize+ ' '          
                        
+ @FieldList + ' FROM '          
                        
+ @TableName + @new_where2 + @PrimaryKey + ' < '          
                        
+ '(Select MIN(' + @PrimaryKey + ') FROM (Select TOP '         
                        
+ STR(@TotalCount-@PageSize*@PageIndex+ ' ' + @PrimaryKey          
                        
+ ' FROM ' + @TableName          
                        
+ @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2          
                        
+ ' ) AS TMP ' + @new_order1          
                    
END          
            
END          
        
IF @SortType = 2  --仅主键反序排序          
            BEGIN          
                
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索          
                    BEGIN          
                        
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM '          
                        
+ @TableName + @new_where2 + @PrimaryKey + ' < '          
                        
+ '(Select MIN(' + @PrimaryKey + ') FROM (Select TOP '          
                        
+ STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey          
                        
+' FROM '+ @TableName          
                        
+ @new_where1 + @new_order1 + ') AS TMP) '+ @new_order1          
                    
END          
                
ELSE  --反向检索          
                    BEGIN          
                        
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ('          
                        
+ 'Select TOP ' + STR(@PageSize+ ' '          
                        
+ @FieldList + ' FROM '          
                        
+ @TableName + @new_where2 + @PrimaryKey + ' > '          
                        
+ '(Select MAX(' + @PrimaryKey + ') FROM (Select TOP '          
                        
+ STR(@TotalCount-@PageSize*@PageIndex+ ' ' + @PrimaryKey          
                        
+ ' FROM ' + @TableName          
                        
+ @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2          
                        
+ ' ) AS TMP ' + @new_order1          
                    
END          
            
END          
        
IF @SortType = 3  --多列排序,必须包含主键,且放置最后,否则不处理          
            BEGIN          
                
IF CHARINDEX(',' + @PrimaryKey + ' ',',' + @Order= 0          
                    
BEGIN PRINT('ERR_02'RETURN END          
                    
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索          
                        BEGIN          
                            
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ( '          
                            
+ 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ( '          
                            
+ ' Select TOP ' + STR(@PageSize*@PageIndex+ ' ' + @FieldList          
                            
+ ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '          
                            
+ @new_order2 + ' ) AS TMP ' + @new_order1          
                        
END          
                    
ELSE  --反向检索          
                        BEGIN          
                            
SET @Sql = 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ( '          
                            
+ 'Select TOP ' + STR(@PageSize+ ' ' + @FieldList + ' FROM ( '          
                            
+ ' Select TOP ' + STR(@TotalCount-@PageSize *@PageIndex+@PageSize+ ' ' + @FieldList          
                            
+ ' FROM ' + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '          
                            
+ @new_order1 + ' ) AS TMP ' + @new_order1          
                        
END          
            
END          
        
END          
    
PRINT(@SQL)          
    
EXEC(@Sql



----------------------------------------------------------------------------------------------
--
--------------------------------------------------------------------------------------------
sql测试:
--测试数据
--
select count(*) from T_TEST
Create  TABLE  T_TEST(ID  INT  IDENTITY(1,1)  PRIMARY  KEY,CLASS_A  VARCHAR(50),CLASS_B  VARCHAR(50),ADD_DT  DATETIME)  
DECLARE  @I  INT  
Select  @I  =  1  
WHILE  @I  <  =  999998  
BEGIN  
Insert  INTO  T_TEST(CLASS_A,CLASS_B,ADD_DT)  
Select  CASE  @I%2  WHEN  0  THEN  'CLASS_A'  +  CAST(@I  AS  VARCHAR)  ELSE  CAST(@I  AS  VARCHAR)  END,  
CASE  @I%5  WHEN  0  THEN  'CLASS_B'  +  CAST(@I  AS  VARCHAR)  ELSE  CAST(@I  AS  VARCHAR)  END,  GETDATE()  
Select  @I  =  @I  +  1  
END  
Create  INDEX  _INDEX  ON  T_TEST(add_dt,id)  
使用:  以多列排序为例
第一页查询,  
第一页取出总记录和总页数,以后就不要从数据库里取了  
DECLARE  @T1  DATETIME,@T2  DATETIME  
DECLARE  @A  INT,@B  INT  
Select  @T1  =  GETDATE()  
EXEC  P_viewPage  'T_TEST','ID,ADD_DT','id','','add_dt  asc,id  asc',3,0,10,1,@A  out,@B  out  
Select  @T2  =  GETDATE()  
Select  CAST(DATEDIFF(ms,@T1,@T2)  AS  VARCHAR)+'ms'  
Select  @A,@B  
其它页(如第1161页):  
DECLARE  @T1  DATETIME,@T2  DATETIME  
DECLARE  @A  INT,@B  INT  
Select  @T1  =  GETDATE()  
EXEC  P_viewPage  'T_TEST','ID,ADD_DT','id','','add_dt  asc,id  asc',3,999998,10,1161,null,null  
Select  @T2  =  GETDATE()  
Select  CAST(DATEDIFF(ms,@T1,@T2)  AS  VARCHAR)+'ms'  
--Select  @A,@B  

 

asp调用简单例子:
<%      Option Explicit%>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<style>
body{
      font
-family: "宋体";
      font
-size: 9pt;
      text
-decoration: none;
      line
-height: 150%;                                       
      margin: 0px;
      background
-color: #A8C2F9;
     }
a:link    {  color: #
000000; text-decoration: none}
a:visited {  color: #
000000; text-decoration: none}
a:hover   {  color: #3333ff; text
-decoration: none}
</style>
</head>
<body>

<%
     
Dim strDbConn , Conn            
     strDBConn 
= "Provider=SQLOLEDB.1;Password=xxxxxxxxxx;Persist Security Info=True; " & _
                 
"User ID=sa;Initial Catalog=DB_xxx;Data Source=RDG_NZ"
     
Set Conn = Server.CreateObject("ADODB.Connection")

     
Dim startime            
     startime
=timer()

           
Function PageView(pagecount,pagesize,page,recordercount) 
                 
'pagecount   总页数
                 'pagesize    每页显示数量
                 'page        当前是第几页
                 'recordercount 总记录数量      
                 'get方式传值:      pagecount:总页数  recordercount:总记录数量
                 pagecount = Clng(pagecount)
                 pagesize 
= Clng(pagesize)
                 page 
= Clng(page)
                 recordercount 
= Clng(recordercount)
                 
Dim query, a, x, temp ,action   
                       action 
= "http://" & Request.ServerVariables("HTTP_HOST") _
                             
& Request.ServerVariables("SCRIPT_NAME")   
                       query 
= Split(Request.ServerVariables("QUERY_STRING"), "&")    
                       
For Each x In query        
                             a 
= Split(x, "=")        
                             
If StrComp(a(0), "page", vbTextCompare) <> 0 and _
                                   
StrComp(a(0), "pagecount", vbTextCompare) <> 0  _
                                         
and StrComp(a(0), "recordercount", vbTextCompare) <> 0 Then            
                                   temp 
= temp & a(0& "=" & a(1& "&"
                             
End If    
                       
Next        
                       
                       PageView 
= "<form method=get onsubmit=""document.location = '" _
                                               
& action & "?" & temp & "Page='+this.page.value;return false;"">"      
        
                       
If page<=1 then        
                             PageView 
= PageView & "[首页] [上一页] "    
                       
Else                
                             PageView 
= PageView & "[<a href=" & action & "?" & temp & "Page=1>首页</a>] "       
                             PageView 
= PageView & "[<a href=" & action & "?" & temp & "Page=" & (Page-1& _
                             
"&pagecount="& pagecount &"&recordercount="& recordercount &">上一页</a>] " 
                       
End If    
                       
If page>=pagecount then        
                             PageView 
= PageView & "[下一页] [尾页] "            
                       
Else        
                             PageView 
= PageView & "[<a href=" & action & "?" & temp & "Page=" & (Page+1& _
                              
"&pagecount="& pagecount &"&recordercount="& recordercount &">下一页</a>] "
                             PageView 
= PageView & "[<a href=" & action & "?" & temp & "Page="& pagecount & _
                              
"&pagecount="& pagecount &"&recordercount="& recordercount &">尾页</a>] "
                       
End If    
                       PageView 
= PageView & "[页次:<font color=red>" & page & "</font>/" & pageCount        
                       PageView 
= PageView & "] [共" & recordercount & "条 <font color=red>"& pagesize & _
                        
"</font>条/页]"
                       PageView 
= PageView & " 转到" & "<input name=page size=4 value=" & page & _
                        
">" & "页<input type=submit value=go></form>"
           
End Function

           
Dim  TableName          '表名
           Dim  FieldList        '显示列名,如果是全部字段则为*
           Dim  PrimaryKey        '单一主键或唯一值键
           Dim  Where             '查询条件 不含'where'字符,如id>10 and len(userid)>9
           Dim  order                '排      序 不含'order by'字符,如id asc,userid desc,必须指定asc或desc
                                         '注意当Dim  SortType=3时生效,记住一定要在最后加上主键,否则会让你比较郁闷
           Dim  SortType       '排序规则 1:正序asc 2:倒序desc 3:多列排序方法
           Dim  RecorderCount  '记录总数 0:会返回总记录
           Dim  PageSize       '每页输出的记录数
           Dim  PageIndex      '当前页数
           Dim  TotalCount     '记返回总记录
           Dim  TotalPageCount '记返回总页数
     
           TableName 
= "T_TEST"
           FieldList 
= "*"
           PrimaryKey 
= "id"
           Where 
= "id>"& request("id")
           order 
= "id asc"
           SortType 
= "1"      
           
If Request("recordercount")=""      Then
                 RecorderCount 
= "0"
           
Else
                 RecorderCount 
= Request("recordercount")
           
End If
           PageSize 
= "10"
           
If Request("page")=""      Then
                 PageIndex 
= "1"
           
Else
                 PageIndex 
= Request("page")
           
End If            
           TotalCount 
= RecorderCount
           
If Request("pagecount")=""      Then
                 TotalPageCount 
= "1"
           
Else
                 TotalPageCount 
= Request("pagecount")
           
End If                   
     
           
Dim Cmd ,rs
           
Set Cmd = Server.CreateObject("ADODB.Command")
           
Set Rs = Server.CreateObject("ADODB.Recordset")
           Conn.Open strDBConn      
           
With Cmd
                 .CommandText 
= "P_viewPage"
                 .CommandType 
= 4
                 .CommandTimeout 
= 0
                 .ActiveConnection 
= Conn      
                 .Parameters.Append .CreateParameter(
"@TableName",200,1,200,TableName)      
                 .Parameters.Append .CreateParameter(
"@FieldList",200,1,2000,FieldList)      
                 .Parameters.Append .CreateParameter(
"@PrimaryKey",200,1,100,PrimaryKey)
                 .Parameters.Append .CreateParameter(
"@Where",200,1,2000,Where)
                 .Parameters.Append .CreateParameter(
"@Order",200,1,1000,Order)
                 .Parameters.Append .CreateParameter(
"@SortType",3,1,,SortType)
                 .Parameters.Append .CreateParameter(
"@RecorderCount",3,1,,RecorderCount)
                 .Parameters.Append .CreateParameter(
"@PageSize",3,1,,PageSize)
                 .Parameters.Append .CreateParameter(
"@PageIndex",3,1,,PageIndex)
                 .Parameters.Append .CreateParameter(
"@TotalCount",3,3,,TotalCount)
                 .Parameters.Append .CreateParameter(
"@TotalPageCount",3,3,,TotalPageCount)
                 
Set rs = .Execute
                 
If Not rs.Eof Then
                       
while not rs.Eof
                             
Rem 输出你的记录集内容
                             Response.Write rs(0& "  ||  " & rs(1& "<br>"
                       rs.MoveNext
                       
wend
                 
End If
                 rs.Close
                 TotalCount 
= .Parameters("@TotalCount")
                 TotalPageCount 
= .Parameters("@TotalPageCount")
           
End With
           
Set Rs = Nothing
           
Set Cmd = Nothing
           Conn.Close
           
Set Conn = Nothing
           Response.write PageView(TotalPageCount,pagesize,PageIndex,TotalCount)

           
Dim endtime            
           endtime
=timer()
%
>
           
           
<br>页面执行时间:<%=FormatNumber((endtime-startime)*1000,3)%>毫秒
</body>
</html>