sqlserver 存储过程分页代码

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发布时间: 2023-06-25 18:03:58　发布作者: 于海丽

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代码如下:

declare @TotalCount int declare @TotalPageCount int exec P_viewPage_A 'type1','*','id','','id asc',1,0,4,3,@TotalCount output,@TotalPageCount output select * from type1 Create PROC P_viewPage_A /* nzperfect [no_mIss] 高效通用分页存储过程(双向检索) 2007.5.7 QQ:34813284 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:正序asc 2:倒序desc 3: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 ' + @TableName + @new_where1 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 TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ' + @TableName + @new_where1 + @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 EXEC(@Sql) GO

如何用vc#调用上面的存储过程

代码如下:

private void fyDB() { DataTable dt = new DataTable(); string con = System.Configuration.ConfigurationSettings.AppSettings["connectionstring"]; SqlConnection conn = new SqlConnection(con); SqlCommand comm = new SqlCommand("P_viewPage_A", conn); //建立SqlCommand对象 comm.CommandType = CommandType.StoredProcedure; //设置SqlCommand对象执行类型为存储过程 comm.Parameters.Add("@TableName", SqlDbType.VarChar ,200); //向Parameters参数列表添加参数 comm.Parameters.Add("@FieldList", SqlDbType.VarChar, 2000); comm.Parameters.Add("@PrimaryKey", SqlDbType.VarChar, 100); comm.Parameters.Add("@where", SqlDbType.VarChar, 2000); comm.Parameters.Add("@Order", SqlDbType.VarChar, 1000); comm.Parameters.Add("@SortType", SqlDbType.Int); comm.Parameters.Add("@RecorderCount", SqlDbType.Int); comm.Parameters.Add("@PageSize", SqlDbType.Int); comm.Parameters.Add("@PageIndex", SqlDbType.Int); comm.Parameters.Add("@TotalCount", SqlDbType.Int); comm.Parameters.Add("@TotalPageCount", SqlDbType.Int); comm.Parameters["@TotalCount"].Direction = ParameterDirection.Output; //设置参数的输出类型 comm.Parameters["@TotalPageCount"].Direction = ParameterDirection.Output; //设置参数的输出类型 comm.Parameters["@TableName"].Value = "type1";//表名 comm.Parameters["@FieldList"].Value = "*";//显示列名，如果是全部字段则为* comm.Parameters["@PrimaryKey"].Value = "id";//单一主键或唯一值键 comm.Parameters["@where"].Value = "";//查询条件不含'where'字符，如id>10 and len(userid)>9 comm.Parameters["@Order"].Value = "id asc";//排序不含'order by'字符，如id asc,userid desc，必须指定asc或desc comm.Parameters["@SortType"].Value = 1;//排序规则 1:正序asc 2:倒序desc 3:多列排序方法 comm.Parameters["@RecorderCount"].Value = 0;//记录总数 0:会返回总记录 comm.Parameters["@PageSize"].Value = 2;//每页输出的记录数 int id1; if (Request.QueryString["id"] == null) id1 = 1; else id1 = Convert.ToInt32(Request.QueryString["id"]); comm.Parameters["@PageIndex"].Value = id1;//当前页数 conn.Open(); // SqlDataReader asr = comm.ExecuteReader(); //int dtr = (int)comm.ExecuteScalar(); SqlDataReader sdr = comm.ExecuteReader(); int i=0; //while (sdr.Read()) //{ // dt.Rows[i][0] = sdr.GetValue(0); // dt.Rows[i][1] = sdr.GetValue(1); //} dt = ConvertDataReaderToDataTable(sdr); GridView1.DataSource = dt; GridView1.DataBind(); // dt.Rows[0][0]; sdr.Close(); // Response.Write(dtr); Response.Write(comm.Parameters["@TotalCount"].Value + "<br>"); Response.Write(comm.Parameters["@TotalPageCount"].Value + "<br>"); // if((Int32)comm.Parameters["RETURN_VALUE"].Value==0) conn.Close(); //string conStr = System.Configuration.ConfigurationSettings.AppSettings["connectionstring"]; //SqlConnection connection = new SqlConnection(conStr); //DataSet dataSet = new DataSet(); //connection.Open(); //SqlDataAdapter sqlDA = new SqlDataAdapter(); //sqlDA.SelectCommand = BuildQueryCommand(connection, "P_viewPage_A", parameters); //sqlDA.Fill(dataSet, tableName); //connection.Close(); //return dataSet; } #region 将DataReader 转为 DataTable /// <summary> /// 将DataReader 转为 DataTable /// </summary> /// <param name="DataReader">DataReader</param> public static DataTable ConvertDataReaderToDataTable(SqlDataReader reader) { try { DataTable objDataTable = new DataTable(); int intFieldCount = reader.FieldCount; for (int intCounter = 0; intCounter < intFieldCount; ++intCounter) { objDataTable.Columns.Add(reader.GetName(intCounter), reader.GetFieldType(intCounter)); } objDataTable.BeginLoadData(); object[] objValues = new object[intFieldCount]; while (reader.Read()) { reader.GetValues(objValues); objDataTable.LoadDataRow(objValues, true); } reader.Close(); objDataTable.EndLoadData(); return objDataTable; } catch (Exception ex) { throw new Exception("转换DataReader为DataTable出错!", ex); } } #endregion

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