Query on cursors in procedures

Question

hi, I have been trying to pass a tablename as a parameter in a procedure. This tablename I then need to use in a cursor .
my code is something like this.
create procedure abc (tablename varchar2)
is
cursor xyz is select rowid from tablename;
But for some reason I can't access the tablename from that cursor. I get an error saying
PL/SQL: SQL Statement ignored
PL/SQL: ORA-00942: table or view does not exist.
Please assist

Answer 1

Hi,
you can use rowid type for the array. Moreover, you can use dynamic sql with bulk collect option. For instance:
oradev> select * from v$version;
BANNER
Oracle9i Enterprise Edition Release 9.2.0.6.0 - Production
PL/SQL Release 9.2.0.6.0 - Production
CORE 9.2.0.6.0 Production
TNS for Solaris: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
oradev> create table a1(c1 int);
Table created.
oradev> insert into a1 select rownum from all_objects;
34466 rows created.
oradev> create or replace procedure proc1 (table_name varchar2, num_rows out int)
2 as
3 type tr is table of rowid index by binary_integer;
4 vs varchar2(1000);
5 arr tr;
6 begin
7 vs := 'select rowid from '||table_name;
8 execute immediate vs bulk collect into arr;
9 num_rows := arr.count;
10 end;
11 /
Procedure created.
oradev> var n number
oradev> exec proc1('A1', :n)
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.06
oradev> print :n
N
34466
Andrey