[PERFORM] how to get the total number of records in report

[AI Rumman]

At present for reporting I use following types of query:
select crm.*, crm_cnt.cnt
from crm,
(select count(*) as cnt from crm) crm_cnt;
Here count query is used to find the total number of records.
Same FROM clause is copied in both the part of the query.
Is there any other good alternative way to get this similar value?