1------------------------------------------------ --游标不是明智的选择,在小数据量时可以使用 create procedure hahaha @sqlstr nvarchar(4000), --查询字符串 @currentpage int, --第N页 @pagesize int --每页行数 as set nocount on declare @P1 int, --P1是游标的id @rowcount int exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1,@rowcount=@rowcount output select ceiling(1.0*@rowcount/@pagesize) as 总页数--,@rowcount as 总行数,@currentpage as 当前页 set @currentpage=(@currentpage-1)*@pagesize+1 exec sp_cursorfetch @P1,16,@currentpage,@pagesize exec sp_cursorclose @P1 set nocount off 测试: hahaha '任何条件的SQL语句',2,10 2---------------- CREATE PROCEDURE GetRecordFromPage @tblName varchar(255), -- 表名 @fldName varchar(255), -- 字段名 @PageSize int = 10, -- 页尺寸 @PageIndex int = 1, -- 页码 @IsCount bit = 0, -- 返回记录总数, 非 0 值则返回 @OrderType bit = 0, -- 设置排序类型, 非 0 值则降序 @strWhere varchar(1000) = '' -- 查询条件 (注意: 不要加 where) AS declare @strSQL varchar(1000) -- 主语句 declare @strTmp varchar(300) -- 临时变量 declare @strOrder varchar(400) -- 排序类型 if @OrderType != 0 begin set @strTmp = "<(select min" set @strOrder = " order by [" + @fldName +"] desc" end else begin set @strTmp = ">(select max" set @strOrder = " order by [" + @fldName +"] asc" end set @strSQL = "select top " + str(@PageSize) + " * from [" + @tblName + "] where [" + @fldName + "]" + @strTmp + "([" + @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " [" + @fldName + "] from [" + @tblName + "]" + @strOrder + ") as tblTmp)" + @strOrder if @strWhere != '' set @strSQL = "select top " + str(@PageSize) + " * from [" + @tblName + "] where [" + @fldName + "]" + @strTmp + "([" + @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " [" + @fldName + "] from [" + @tblName + "] where (" + @strWhere + ") " + @strOrder + ") as tblTmp) and (" + @strWhere + ") " + @strOrder if @PageIndex = 1 begin set @strTmp = "" if @strWhere != '' set @strTmp = " where (" + @strWhere + ")" set @strSQL = "select top " + str(@PageSize) + " * from [" + @tblName + "]" + @strTmp + " " + @strOrder end if @IsCount != 0 set @strSQL = "select count(*) as Total from [" + @tblName + "]" exec (@strSQL) GO 3-------------------------------- CREATE Proc p_show @QueryStr nvarchar(4000), --表名、视图名、查询语句 @PageSize int=10, --每页的大小(行数) @PageCurrent int=1, --要显示的页 @FdShow nvarchar (4000)= ' ', --要显示的字段列表,如果查询结果有标识字段,需要指定此值,且不包含标识字段 @FdOrder nvarchar (1000)= ' ' --排序字段列表 as declare @FdName nvarchar(250) --表中的主键或表、临时表中的标识列名 ,@Id1 varchar(20),@Id2 varchar(20) --开始和结束的记录号 ,@Obj_ID int --对象ID --表中有复合主键的处理 declare @strfd nvarchar(2000) --复合主键列表 ,@strjoin nvarchar(4000) --连接字段 ,@strwhere nvarchar(2000) --查询条件 select @Obj_ID=object_id(@QueryStr) ,@FdShow=case isnull(@FdShow, ' ') when ' ' then ' * ' else ' '+@FdShow end ,@FdOrder=case isnull(@FdOrder, ' ') when ' ' then ' ' else ' order by '+@FdOrder end ,@QueryStr=case when @Obj_ID is not null then ' '+@QueryStr else ' ( '+@QueryStr+ ') a ' end --如果显示第一页,可以直接用top来完成 if @PageCurrent=1 begin select @Id1=cast(@PageSize as varchar(20)) exec( 'select top '+@Id1+@FdShow+ ' from '+@QueryStr+@FdOrder) return end --如果是表,则检查表中是否有标识更或主键 if @Obj_ID is not null and objectproperty(@Obj_ID, 'IsTable ')=1 begin select @Id1=cast(@PageSize as varchar(20)) ,@Id2=cast((@PageCurrent-1)*@PageSize as varchar(20)) select @FdName=name from syscolumns where id=@Obj_ID and status=0x80 if @@rowcount=0 --如果表中无标识列,则检查表中是否有主键 begin if not exists(select 1 from sysobjects where parent_obj=@Obj_ID and xtype= 'PK ') goto lbusetemp --如果表中无主键,则用临时表处理 select @FdName=name from syscolumns where id=@Obj_ID and colid in( select colid from sysindexkeys where @Obj_ID=id and indid in( select indid from sysindexes where @Obj_ID=id and name in( select name from sysobjects where xtype= 'PK ' and parent_obj=@Obj_ID ))) if @@rowcount> 1 --检查表中的主键是否为复合主键 begin select @strfd= ' ',@strjoin= ' ',@strwhere= ' ' select @strfd=@strfd+ ',[ '+name+ '] ' ,@strjoin=@strjoin+ ' and a.[ '+name+ ']=b.[ '+name+ '] ' ,@strwhere=@strwhere+ ' and b.[ '+name+ '] is null ' from syscolumns where id=@Obj_ID and colid in( select colid from sysindexkeys where @Obj_ID=id and indid in( select indid from sysindexes where @Obj_ID=id and name in( select name from sysobjects where xtype= 'PK ' and parent_obj=@Obj_ID ))) select @strfd=substring(@strfd,2,2000) ,@strjoin=substring(@strjoin,5,4000) ,@strwhere=substring(@strwhere,5,4000) goto lbusepk end end end else goto lbusetemp /*--使用标识列或主键为单一字段的处理方法--*/ lbuseidentity: exec( 'select top '+@Id1+@FdShow+ ' from '+@QueryStr + ' where '+@FdName+ ' not in(select top ' +@Id2+ ' '+@FdName+ ' from '+@QueryStr+@FdOrder + ') '+@FdOrder ) return /*--表中有复合主键的处理方法--*/ lbusepk: exec( 'select '+@FdShow+ ' from(select top '+@Id1+ ' a.* from (select top 100 percent * from '+@QueryStr+@FdOrder+ ') a left join (select top '+@Id2+ ' '+@strfd+ ' from '+@QueryStr+@FdOrder+ ') b on '+@strjoin+ ' where '+@strwhere+ ') a ' ) return /*--用临时表处理的方法--*/ lbusetemp: select @FdName= '[ID_ '+cast(newid() as varchar(40))+ '] ' ,@Id1=cast(@PageSize*(@PageCurrent-1) as varchar(20)) ,@Id2=cast(@PageSize*@PageCurrent-1 as varchar(20)) exec( 'select '+@FdName+ '=identity(int,0,1), '+@FdShow+ ' into #tb from '+@QueryStr+@FdOrder+ ' select '+@FdShow+ ' from #tb where '+@FdName+ ' between ' +@Id1+ ' and '+@Id2 ) GO create table ta(col1 int,col2 char(2)) go insert ta select 1,'2' exec p_show '(select * from ta)',10,1,'col1,col2','col2' drop table ta drop proc p_show /* col1 col2 ----------- ---- 1 2 (所影响的行数为 1 行) */ 4--TOP n 实现的通用分页排序存储过程 --exec sp_PageView t,'ID',1,5,'ID,sex,Name','ID asc','ID=1',1 CREATE PROC sp_PageView @tbname sysname, --要分页显示的表名 @FieldKey nvarchar(1000), --用于定位记录的主键(惟一键)字段,可以是逗号分隔的多个字段 @PageCurrent int=1, --要显示的页码 @PageSize int=10, --每页的大小(记录数) @FieldShow nvarchar(1000)='', --以逗号分隔的要显示的字段列表,如果不指定,则显示所有字段 @FieldOrder nvarchar(1000)='', --以逗号分隔的排序字段列表,可以指定在字段后面指定DESC/ASC --用于指定排序顺序 @Where nvarchar(1000)='', --查询条件 @PageCount int OUTPUT --总页数 AS SET NOCOUNT ON --检查对象是否有效 IF OBJECT_ID(@tbname) IS NULL BEGIN RAISERROR(N'对象"%s"不存在',1,16,@tbname) RETURN END IF OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTable')=0 AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsView')=0 AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTableFunction')=0 BEGIN RAISERROR(N'"%s"不是表、视图或者表值函数',1,16,@tbname) RETURN END --分页字段检查 IF ISNULL(@FieldKey,N'')='' BEGIN RAISERROR(N'分页处理需要主键(或者惟一键)',1,16) RETURN END --其他参数检查及规范 IF ISNULL(@PageCurrent,0)<1 SET @PageCurrent=1 IF ISNULL(@PageSize,0)<1 SET @PageSize=10 IF ISNULL(@FieldShow,N'')=N'' SET @FieldShow=N'*' IF ISNULL(@FieldOrder,N'')=N'' SET @FieldOrder=N'' ELSE SET @FieldOrder=N'ORDER BY '+LTRIM(@FieldOrder) IF ISNULL(@Where,N'')=N'' SET @Where=N'' ELSE SET @Where=N'WHERE ('+@Where+N')' --如果@PageCount为NULL值,则计算总页数(这样设计可以只在第一次计算总页数,以后调用时,把总页数传回给存储过程,避免再次计算总页数,对于不想计算总页数的处理而言,可以给@PageCount赋值) IF @PageCount IS NULL BEGIN DECLARE @sql nvarchar(4000) SET @sql=N'SELECT @PageCount=COUNT(*)' +N' FROM '+@tbname +N' '+@Where EXEC sp_executesql @sql,N'@PageCount int OUTPUT',@PageCount OUTPUT SET @PageCount=(@PageCount+@PageSize-1)/@PageSize END --计算分页显示的TOPN值 DECLARE @TopN varchar(20),@TopN1 varchar(20) SELECT @TopN=@PageSize, @TopN1=(@PageCurrent-1)*@PageSize --第一页直接显示 IF @PageCurrent=1 EXEC(N'SELECT TOP '+@TopN +N' '+@FieldShow +N' FROM '+@tbname +N' '+@Where +N' '+@FieldOrder) ELSE BEGIN --处理别名 IF @FieldShow=N'*' SET @FieldShow=N'a.*' --生成主键(惟一键)处理条件 DECLARE @Where1 nvarchar(4000),@Where2 nvarchar(4000), @s nvarchar(1000),@Field sysname SELECT @Where1=N'',@Where2=N'',@s=@FieldKey WHILE CHARINDEX(N',',@s)>0 SELECT @Field=LEFT(@s,CHARINDEX(N',',@s)-1), @s=STUFF(@s,1,CHARINDEX(N',',@s),N''), @Where1=@Where1+N' AND a.'+@Field+N'=b.'+@Field, @Where2=@Where2+N' AND b.'+@Field+N' IS NULL', @Where=REPLACE(@Where,@Field,N'a.'+@Field), @FieldOrder=REPLACE(@FieldOrder,@Field,N'a.'+@Field), @FieldShow=REPLACE(@FieldShow,@Field,N'a.'+@Field) SELECT @Where=REPLACE(@Where,@s,N'a.'+@s), @FieldOrder=REPLACE(@FieldOrder,@s,N'a.'+@s), @FieldShow=REPLACE(@FieldShow,@s,N'a.'+@s), @Where1=STUFF(@Where1+N' AND a.'+@s+N'=b.'+@s,1,5,N''), @Where2=CASE WHEN @Where='' THEN N'WHERE (' ELSE @Where+N' AND (' END+N'b.'+@s+N' IS NULL'+@Where2+N')' --执行查询 EXEC(N'SELECT TOP '+@TopN +N' '+@FieldShow +N' FROM '+@tbname +N' a LEFT JOIN(SELECT TOP '+@TopN1 +N' '+@FieldKey +N' FROM '+@tbname +N' a '+@Where +N' '+@FieldOrder +N')b ON '+@Where1 +N' '+@Where2 +N' '+@FieldOrder) END GO
应一个网友的要求,把几个分页存储过程贴上来,
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