How to pass Table name as argument in Stored Proc

Question

Hi ,
I have a requirement wherein the table name has to be passed as an argument of SP and the output should be the count from that table based on some filter condition.
Something like this:
create or replace procedure Testing(p_table varchar2,p_count OUT integer) AS
begin
select count(1) into p_count from p_table;
end;
Getting the error on running above code:
PL/SQL: ORA-00942: table or view does not exist
Please let me know how can we do this?
Thanks.

Answer 1

Example :SQL> create or replace procedure Testing(
  2     p_table varchar2,
  3     p_count OUT integer) AS
  4  begin
  5     execute immediate 'select count(1) from '||p_table
  6             into p_count;
  7  end;
  8  /
Procedure created.
SQL> var n1 number;
SQL> exec Testing('user_objects',:n1);
PL/SQL procedure successfully completed.
SQL> print n1
        N1
        37
SQL>