Ich muss Oracle SQL-Schnittstelle zu Oracle R Enterprise zu vereinfachen, so dass es für andere Benutzer benutzerfreundlicher ist.Oracle Data Miner - Vereinfachen Oracle R Enterprise-Schnittstelle
Zum Beispiel durch den Aufruf von R funciton „R_ONE_SAMPLE_T_TEST“, in origineller Weise eine Probe T-Test berechnet Ich habe folgende SSQ-Anweisung ausführen:
select *
from
table
(
rqTableEval(
cursor
(
select *
from "INSUR_CUST_LTV_SAMPLE"
), -- Input Cursor
cursor
(
select 10 as "target_number",
1 as "ore.connect"
from dual
), -- Param Cursor
'select
str_col as "Variable Name",
num_col as "Average",
num_col as "T-Test",
num_col as "P-Value",
num_col as "Con.Level Lower Bound (95%)",
num_col as "Con.Level Upper Bound (95%)"
from RQSYS.RQ_TEMP
WHERE ROWNUM=1', -- Output Definition
'R_ONE_SAMPLE_T_TEST' -- R Script
)
)
Ich hoffe, dass ich es durch die folgende Anweisung vereinfachen kann:
select *
from table
(
pkg_one_sample_t_test.f_run
(
cursor(select * from "INSUR_CUST_LTV_SAMPLE"),
10 -- Target number
)
)
Also schrieb ich das Paket pkg_one_sample_t_test:
create or replace package pkg_one_sample_t_test as
type one_sample_t_test is record
(
"Variable Name" varchar2(4000),
"Average" number,
"T-Test" number,
"P-Value" number,
"Con.Level Lower Bound (95%)" number,
"Con.Level Upper Bound (95%)" number
);
type one_sample_t_test_table is table of one_sample_t_test;
function f_run
(
p_data in sys_refcursor,
target_number in number
)
return one_sample_t_test_table pipelined;
end pkg_one_sample_t_test;
create or replace package body pkg_one_sample_t_test as
function f_run
(
p_data in sys_refcursor,
target_number in number
)
return one_sample_t_test_table pipelined
is
v_one_sample_t_test one_sample_t_test;
-- cursor v_cursor is
-- select 'a', 1, 1,1, 1, 1 from dual;
cursor v_cursor is
select *
from
table
(
cast
(
rqTableEval
(
p_data,
cursor
(
select
target_number as "target_number",
1 as "ore.connect"
from dual
), -- Param Cursor
'select
str_col as "Variable Name",
num_col as "Average",
num_col as "T-Test",
num_col as "P-Value",
num_col as "Con.Level Lower Bound (95%)",
num_col as "Con.Level Upper Bound (95%)"
from RQSYS.RQ_TEMP
WHERE ROWNUM=1', -- Output Definition
'R_ONE_SAMPLE_T_TEST' -- R Script
)
as
one_sample_t_test_table ----PL/SQL: ORA-00902: invalid datatype
)
);
begin
open v_cursor;
loop
fetch v_cursor into v_one_sample_t_test;
exit when v_cursor%notfound;
pipe row(v_one_sample_t_test);
end loop;
close v_cursor;
return;
end;
end pkg_one_sample_t_test;
Aber beim Compiler gibt es den Fehler PL/SQL: ORA-00902: ungültiger Datentyp für den Tabellentyp one_sample_t_test_table, der bereits im Paketheader definiert ist.
Wie kann ich dieses Problem lösen?
Vielen Dank.