USER_DATASTORE with VARCHAR2

Question

I'm using Oracle Text with Oracle Enterprise Server 8.1.7 on Solaris.
I try to create an index with a user_datastore based on a procedure returning a varchar2.
It seems to me that I wrote that procedure as the documentation says but I get that error message:
DRG-12604: execution of user datastore procedure has failed
DRG-50857: oracle error in drsinopen
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'STUDY_DATASTORE'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
The procedure I wrote is owned by an application schema:
PROCEDURE STUDY_DATASTORE (rid in rowid, tvarchar2 in out varchar2) IS
cursor cur_study (p_rid in rowid) is
select otherinstitutionname,
othercoursetitle
from study, csuser
where csuser.rowid = p_rid
and csuser.csuserno = study.candidateno
and study.jobofferno = -1;
begin
for rec_study in cur_study (rid)
loop
tvarchar2 := tvarchar2 | | rec_study.otherinstitutionname;
end loop;
END STUDY_DATASTORE;
Then I wrote the procedure owned by CTXSYS:
procedure study_datastore(rid in rowid, tvarchar2 in out nocopy varchar2) is
begin
huge_400.study_datastore(rid, tvarchar2);
end;
I then granted that procedure to the application schema:
grant execute study_datastore to huge_400;
Anyone can see the problem ?
When I write my procedure with a returning clob, I get no problems but it is very slow. That's why I tried with varchar2.

Answer 1

You have to set an attribute
ctx_ddl.set_attribute('mystore','output_type','varchar2');
See Documentation about USER_DATASTORE
Regards
Thomas
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Yves Bergeron ([email protected]):
I'm using Oracle Text with Oracle Enterprise Server 8.1.7 on Solaris.
I try to create an index with a user_datastore based on a procedure returning a varchar2.
It seems to me that I wrote that procedure as the documentation says but I get that error message:
DRG-12604: execution of user datastore procedure has failed
DRG-50857: oracle error in drsinopen
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'STUDY_DATASTORE'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
The procedure I wrote is owned by an application schema:
PROCEDURE STUDY_DATASTORE (rid in rowid, tvarchar2 in out varchar2) IS
cursor cur_study (p_rid in rowid) is
select otherinstitutionname,
othercoursetitle
from study, csuser
where csuser.rowid = p_rid
and csuser.csuserno = study.candidateno
and study.jobofferno = -1;
begin
for rec_study in cur_study (rid)
loop
tvarchar2 := tvarchar2 | | rec_study.otherinstitutionname;
end loop;
END STUDY_DATASTORE;
Then I wrote the procedure owned by CTXSYS:
procedure study_datastore(rid in rowid, tvarchar2 in out nocopy varchar2) is
begin
huge_400.study_datastore(rid, tvarchar2);
end;
I then granted that procedure to the application schema:
grant execute study_datastore to huge_400;
Anyone can see the problem ?
When I write my procedure with a returning clob, I get no problems but it is very slow. That's why I tried with varchar2.<HR></BLOCKQUOTE>
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