分页存储过程（MSSql）转载

set ANSI_NULLS ONset QUOTED_IDENTIFIER ONgo --TOP n 实现的通用分页存储过程ALTER PROC [dbo].[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 OUTPUT, --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ASSET NOCOUNT ON--检查对象是否有效IF OBJECT_ID(@tbname) IS NULLBEGIN RAISERROR(N'对象"%s"不存在',1,16,@tbname) RETURNENDIF OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTable')=0 AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsView')=0 AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTableFunction')=0BEGIN RAISERROR(N'"%s"不是表、视图或者表值函数',1,16,@tbname) RETURNEND--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) RETURNEND--其他参数检查及规范IF ISNULL(@PageCurrent,0)<1 SET @PageCurrent=1IF ISNULL(@PageSize,0)<1 SET @PageSize=10IF 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 NULLBEGIN 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)/@PageSizeEND--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)ELSEBEGIN --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================================调用==============================================/// </summary> /// <param name="tableName">表名</param> /// <param name="fieldName">主键id</param> /// <param name="pageSize">每页记录数</param> /// <param name="pageCurrent">当前页码</param> /// <param name="pageCount">总页数</param> /// <param name="connStr">连接字符串名称</param> private void TableData(string tableName, string fieldName, int pageSize, int pageCurrent, string connStr) { SqlConnection DbConnection = new SqlConnection(ConfigurationManager.AppSettings["ConnectString"]); SqlCommand command = new SqlCommand("sp_PageView", DbConnection); command.CommandType = CommandType.StoredProcedure; command.Parameters.Add("@tbname", SqlDbType.NVarChar, 10);//表名 command.Parameters.Add("@FieldKey", SqlDbType.NVarChar, 10);//主键字段 command.Parameters.Add("@PageSize", SqlDbType.Int, 4);//页数 command.Parameters.Add("@PageCount", SqlDbType.Int, 4);//页记录数 command.Parameters.Add("@PageCurrent", SqlDbType.Int, 4);//当前页 command.Parameters.Add("@Where", SqlDbType.NVarChar, 1000); command.Parameters["@tbname"].Value = tableName; command.Parameters["@FieldKey"].Value = fieldName; command.Parameters["@PageSize"].Value = pageSize; command.Parameters["@PageCount"].Value = null; command.Parameters["@PageCurrent"].Value = pageCurrent; command.Parameters["@Where"].Value = Conditions; command.Parameters["@PageCount"].Direction = ParameterDirection.Output;//总页数 SqlDataAdapter da = new SqlDataAdapter(command); DataSet ds = new DataSet(); using (command) { DbConnection.Open(); da.Fill(ds); _pageCount = Convert.ToInt32(command.Parameters["@PageCount"].Value); ViewState["PageCount"] = _pageCount; int NowPageNumber = Convert.ToInt32(command.Parameters["@PageCurrent"].Value); } ControlBind(ds.Tables[0]);//table绑定控件 }