1。定義存儲過程
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
Cur_ReturnCur out T_CURSOR --返回的遊標
);
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
Cur_ReturnCur out T_CURSOR
)
is
v_SourceTb1 varchar2(3000); --動態表名1
v_SourceTb2 varchar2(3000); --動態表名2
v_SourceTb3 varchar2(3000); --動態表名3
v_SourceTb4 varchar2(3000); --動態表名4
v_TotalCount varchar2(50); --總記錄數
v_sql varchar2(3000); --動態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;
2。調用
/// <summary>
/// 調用存儲過程實現快速分頁
/// </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
cmd.Parameters["TotalCount"].Direction = ParameterDirection.Output;
cmd.Parameters["TotalCount"].Value = 0;
cmd.Parameters.Add("Cur_ReturnCur",OracleType.Cursor); //返回的遊標
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
RecordCount = int.Parse(cmd.Parameters["TotalCount"].Value.ToString());
return Ds.Tables[0];
}
