以下為引用的內(nèi)容: create or replace package MaterialManage is TYPE T_CURSOR IS REF CURSOR; Procedure Per_QuickPage ( TbName in varchar2, --表名 FieldStr in varchar2, --字段集 RowFilter in varchar2, --過濾條件 SortStr in varchar2, --排序集 RownumFieldStr in varchar2, --分頁條件 TotalCount out number, --總記錄數(shù) Cur_ReturnCur out T_CURSOR --返回的游標 ); end MaterialManage; 包主體: create or replace package body MaterialManage is Procedure Per_QuickPage ( TbName in varchar2, --表 名 FieldStr in varchar2, --字段集 RowFilter in varchar2, --過濾條件 SortStr in varchar2, --排序集 MinRowNum in number, --分頁小值 MaxRowNum in number, --分頁大值 TotalCount out number, --總記錄數(shù) Cur_ReturnCur out T_CURSOR ) is v_SourceTb1 varchar2(3000); --動態(tài)表名1 v_SourceTb2 varchar2(3000); --動態(tài)表名2 v_SourceTb3 varchar2(3000); --動態(tài)表名3 v_SourceTb4 varchar2(3000); --動態(tài)表名4 v_TotalCount varchar2(50); --總記錄數(shù) v_sql varchar2(3000); --動態(tài)sql begin v_SourceTb1 := '(select '|| FieldStr ||' from '|| TbName ||') SourceTb1'; v_SourceTb2 := '(select * from '|| v_SourceTb1 ||' where '|| RowFilter ||' '|| SortStr ||') SourceTb2'; v_SourceTb3 := '(select rownum as Rowindex,SourceTb2.* from '|| v_SourceTb2 ||' where rownum<='|| MaxRowNum ||') SourceTb3'; v_SourceTb4 := '(select * from '|| v_SourceTb1 ||' where '|| RowFilter ||') SourceTb4'; v_sql := 'select count(*) as TotalCount from '|| v_SourceTb4; execute immediate v_sql into v_TotalCount; TotalCount := v_TotalCount; v_sql := 'select * from '|| v_SourceTb3 ||' where RowIndex >='||MinRowNum; open Cur_ReturnCur for v_sql; end Per_QuickPage; END MaterialManage; 由于oracle有個rownum特性,所以分頁的時候就是利用rownum來實現(xiàn)。如果大家還有什么更好的辦法記得告訴我一聲,多謝了,因為我測試了上面的分頁方法效率并不是很高。 存儲過程返回了兩個參數(shù):TotalCount :當(dāng)前條件下的總記錄數(shù) Cur_ReturnCur :游標類型,就是所要讀取的記錄的集合 下面是ASP.NET中調(diào)用的代碼: /// <summary> /// 調(diào)用存儲過程實現(xiàn)快速分頁 /// </summary> /// <param name="TbName">表名稱</param> /// <param name="FieldStr">字段名稱</param> /// <param name="RowFilter">過濾條件</param> /// <param name="SortStr">排序字段</param> /// <param name="MinPageNum">分頁小值</param> /// <param name="MaxPageNum">分頁大值</param> /// <param name="TotalCount">總記錄(需要返回)</param> /// <returns>DataTable</returns> public DataTable QuickPage(string TbName,string FieldStr,string RowFilter,string SortStr,int MinRowNum,int MaxRowNum,ref int RecordCount) { OracleConnection conn = new OracleConnection(ConfigurationSettings.AppSettings["OracleConnstr"].ToString()); OracleCommand cmd = new OracleCommand(); cmd.Connection = conn; cmd.CommandText = "MaterialManage.Per_QuickPage"; cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("TbName",OracleType.VarChar,50); //表 名 cmd.Parameters["TbName"].Direction = ParameterDirection.Input; cmd.Parameters["TbName"].Value = TbName; cmd.Parameters.Add("FieldStr",OracleType.VarChar,3000); //字段集 cmd.Parameters["FieldStr"].Direction = ParameterDirection.Input; cmd.Parameters["FieldStr"].Value = FieldStr; cmd.Parameters.Add("RowFilter",OracleType.VarChar,3000); //過濾條件 cmd.Parameters["RowFilter"].Direction = ParameterDirection.Input; cmd.Parameters["RowFilter"].Value = RowFilter; cmd.Parameters.Add("SortStr",OracleType.VarChar,3000); //排序字段 cmd.Parameters["SortStr"].Direction = ParameterDirection.Input; cmd.Parameters["SortStr"].Value = SortStr; cmd.Parameters.Add("MinRowNum",OracleType.Number); //分頁小值 cmd.Parameters["MinRowNum"].Direction = ParameterDirection.Input; cmd.Parameters["MinRowNum"].Value = MinRowNum; cmd.Parameters.Add("MaxRowNum",OracleType.Number); //分頁大值 cmd.Parameters["MaxRowNum"].Direction = ParameterDirection.Input; cmd.Parameters["MaxRowNum"].Value = MaxRowNum; cmd.Parameters.Add("TotalCount",OracleType.Number); //頁總記錄數(shù) cmd.Parameters["TotalCount"].Direction = ParameterDirection.Output; cmd.Parameters["TotalCount"].Value = 0; cmd.Parameters.Add("Cur_ReturnCur",OracleType.Cursor); //返回的游標 cmd.Parameters["Cur_ReturnCur"].Direction = ParameterDirection.Output; DataSet Ds = new DataSet(); OracleDataAdapter adapter= new OracleDataAdapter(cmd); adapter.Fill(Ds); conn.Close(); //總記錄數(shù) RecordCount = int.Parse(cmd.Parameters["TotalCount"].Value.ToString()); return Ds.Tables[0]; } |