我有以下用于创建表和视图的代码。
create table test_company
(
comp_id number
, comp_name varchar2(500)
)
;
insert into test_company values(1, 'CompanyA');
insert into test_company values(2, 'CompanyB');
insert into test_company values(3, 'CompanyC');
create or replace view test_company_view as select * from test_company;
我有以下代码用于光标测试。但是dbms_sql.to_cursor_number
出现错误ORA-01001: invalid cursor
set serveroutput on;
declare
reader test_company_view%ROWTYPE;
datacursor SYS_REFCURSOR;
v_cursor_id number;
begin
open datacursor for select * from test_company_view;
v_cursor_id := dbms_sql.to_cursor_number(datacursor); -- ERROR: invalid cursor
loop fetch datacursor into reader;
exit when datacursor%NOTFOUND;
dbms_output.put_line(reader.comp_id);
end loop;
close datacursor;
end;
我做错了什么?感谢您的帮助!
我试过了strongly-typed REF CURSOR
,weakly-typed REF CURSOR
但他们得到了同样的错误。