真正通用的SQL分页存储过程

 1 CREATE PROCEDURE [dbo].[SP_PageResult]       
 2 -- 获得某一页的数据 --       
 3 @currPage int = 1, --当前页页码 (即Top currPage)       
 4 @showColumn varchar(2000) = ‘*‘, --需要得到的字段 (即 column1,column2,......)       
 5 @tabName varchar(2000), --需要查看的表名 (即 from table_name)       
 6 @strCondition varchar(2000) = ‘‘, --查询条件 (即 where condition......) 不用加where关键字       
 7 @ascColumn varchar(100) = ‘‘, --排序的字段名 (即 order by column asc/desc)       
 8 @bitOrderType bit = 0, --排序的类型 (1为降序,其它为升序)          
 9 @pageSize int = 20 --分页大小       
10 --   
11 AS       
12 BEGIN -- 存储过程开始       
13 -- 该存储过程需要用到的几个变量 --       
14 DECLARE @strTemp varchar(1000)       
15 DECLARE @strSql varchar(4000) --该存储过程最后执行的语句       
16 DECLARE @strOrderType varchar(1000) --排序类型语句 (order by column asc或者order by column desc)       
17 DECLARE @RIDorder varchar(100)      
18 BEGIN       
19 IF @bitOrderType = 1 -- bitOrderType=1即执行降序       
20  BEGIN       
21  SET @strOrderType = ‘ ORDER BY ‘+@ascColumn+‘ DESC‘       
22  SET @strTemp = ‘<(SELECT min‘    
23  SET @RIDorder  = ‘ ORDER BY RID DESC‘      
24  END       
25 ELSE       
26  BEGIN       
27  SET @strOrderType = ‘ ORDER BY ‘+@ascColumn+‘ ASC‘       
28  SET @strTemp = ‘>(SELECT max‘      
29  SET @RIDorder  = ‘ ORDER BY RID ASC‘    
30  END       
31     
32     
33 IF @currPage = 1 -- 如果是第一页       
34 BEGIN       
35 IF @strCondition != ‘‘      
36  BEGIN    
37   SET @strSql = ‘SELECT  row_number() over (‘ + @strOrderType +‘) AS RID,‘+@showColumn+‘ INTO #T FROM ‘+@tabName+ ‘ WHERE ‘+@strCondition+‘ ‘+@strOrderType +‘; create index I1 on #T(RID);‘    
38   SET @strSql = @strSql + ‘ SELECT TOP ‘+STR(@pageSize)+@showColumn+‘ FROM #T ‘ + @RIDorder       
39    
40  END    
41 ELSE       
42  BEGIN    
43   SET @strSql = ‘SELECT  row_number() over (‘ + @strOrderType +‘) AS RID,‘+@showColumn+‘ INTO #T FROM ‘+@tabName+ ‘ ‘+@strOrderType +‘; create index I1 on #T(RID);‘    
44   SET @strSql = @strSql + ‘ SELECT TOP ‘+STR(@pageSize)+@showColumn+‘ FROM #T ‘ + @RIDorder  
45    
46  END    
47 END       
48       
49 ELSE -- 其他页       
50 BEGIN      
51      
52 IF @strCondition !=‘‘    
53  BEGIN      
54   SET @strSql = ‘SELECT  row_number() over (‘ + @strOrderType +‘) AS RID,‘+@showColumn+‘ INTO #T FROM ‘+@tabName+ ‘ WHERE ‘+@strCondition+‘ ‘+@strOrderType +‘; create index I1 on #T(RID);‘       
55   SET @strSql = @strSql + ‘SELECT TOP ‘+STR(@pageSize)+‘ ‘+@showColumn+‘ FROM ‘+‘#T‘+       
56   ‘ WHERE ‘+@strCondition+‘ AND ‘+‘RID‘+@strTemp+‘(‘+‘RID‘+‘)‘+‘ FROM (SELECT TOP ‘+STR((@currPage-1)*@pageSize)+       
57   ‘ ‘+‘RID‘+‘ FROM ‘+‘#T‘+@RIDorder+‘) AS TabTemp)‘+@RIDorder      
58  END     
59 ELSE     
60  BEGIN       
61   SET @strSql = ‘SELECT  row_number() over (‘ + @strOrderType +‘) AS RID,‘+@showColumn+‘ INTO #T FROM ‘+@tabName+‘ ‘ + @strOrderType  +‘; create index I1 on #T(RID);‘        
62   SET @strSql = @strSql + ‘SELECT TOP ‘+STR(@pageSize)+‘ ‘+@showColumn+‘ FROM ‘+‘#T‘+       
63   ‘ WHERE ‘+‘RID‘+@strTemp+‘(‘+‘RID‘+‘)‘+‘ FROM (SELECT TOP ‘+STR((@currPage-1)*@pageSize)+‘ ‘+‘RID‘+       
64   ‘ FROM ‘+‘#T‘+@RIDorder+‘) AS TabTemp)‘+@RIDorder      
65  END     
66 END       
67       
68 END       
69 
70 set  @strSql=@strSql+‘;select count(*) from ‘+ ‘#T‘ + ‘;DROP TABLE #T‘      
71 print @strSql    
72 exec (@strSql)       
73       
74 END -- 存储过程结束