Table_name + number of records

Question

i need to make a listing that give me all tables that i own and beside the number of records in each table i have
like :
table aaa 32 records
table bbb 962 records..
i have large number of tables
can anybody help?
thank you

Answer 1

- Do you need an exact count? Or an approximate count?
- Do you use the CBO or the RBO?
If you use the CBO and can tolerate an approximate count,
SELECT table_name, num_rows
  FROM user_tablesOtherwise, you'd need to use dynamic SQL. This will be quite expensive, since it involves full-scanning every table in the database
DECLARE
  l_cnt NUMBER;
BEGIN
  FOR x IN (SELECT * FROM user_tables)
  LOOP
    EXECUTE IMMEDIATE 'SELECT COUNT(*) FROM ' || x.table_name INTO l_cnt;
    dbms_output.put_line( x.table_name || ' ' || l_cnt );
  END LOOP;
END;Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC