create or replace package DotNet is

-- Author : good_hy
-- Created : 2004-12-13 13:30:30
-- Purpose :
TYPE type_cur IS REF CURSOR; --定義游標變量用于返回記錄集
PROCEDURE DotNetPagination(
Pindex in number, --分頁索引
Psql in varchar2, --產生dataset的sql語句
Psize in number, --頁面大小
Pcount out number, --返回分頁總數
v_cur out type_cur --返回當前頁數據記錄
);
procedure DotNetPageRecordsCount(
Psqlcount in varchar2, --產生dataset的sql語句
Prcount out number --返回記錄總數
);
end DotNot;

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create or replace package body DotNet is

--***************************************************************************************

PROCEDURE DotNetPagination(
Pindex in number,
Psql in varchar2,
Psize in number,
Pcount out number,
v_cur out type_cur
)
AS

v_sql VARCHAR2(1000);
v_count number;
v_Plow number;
v_Phei number;
Begin
------------------------------------------------------------取分頁總數
v_sql := 'select count(*) from (' || Psql || ')';
execute immediate v_sql into v_count;
Pcount := ceil(v_count/Psize);
------------------------------------------------------------顯示任意頁內容
v_Phei := Pindex * Psize + Psize;
v_Plow := v_Phei - Psize + 1;
--Psql := 'select rownum rn,t.* from cd_ssxl t' ; --要求必須包含rownum字段
--v_sql := 'select * from (select rownum rn , t.* from (' || sqlstr || ') t) where rn between ' || v_Plow || ' and ' || v_Phei ;
v_sql := 'select * from (' || Psql || ') where rn between ' || v_Plow || ' and ' || v_Phei ;

open v_cur for v_sql;
End DotNetPagination;

--**************************************************************************************

procedure DotNetPageRecordsCount(
Psqlcount in varchar2,
Prcount out number
)
as
v_sql varchar2(1000);
v_prcount number;
begin
v_sql := 'select count(*) from (' || Psqlcount || ')';
execute immediate v_sql into v_prcount;
Prcount := v_prcount; --返回記錄總數
end DotNetPageRecordsCount;
--**************************************************************************************

end DotNot;
