Question

I want to get count(*) value in dynamic plsql statement.
We can write static stmt as:

select count(*) into tmp_cnt from table_info where nbr_entry='0123456789';

but how to get tmp_cnt value while writing the dynamic sql stament?
or any other way to get count(*) value into tmp_cnt variable?

Answer 1

You can achieve it with EXECUTE IMMEDIATE … RETURNING INTO:

function count_rows(p_table_name varchar2)
  return number
is
  l_count number;
begin
  execute immediate 'select count(*) from ' || p_table_name into l_count;
  return l_count;
end count_rows;