select * from user_tables;
如果要比較準確的話可以使用存儲過程來實現：
DECLARE
CURSOR curs IS SELECT table_name FROM user_tables;
cn INT;
BEGIN
FOR cur IN curs LOOP
EXECUTE IMMEDIATE 'select count(1) from ' || cur.table_name INTO cn;
dbms_output.put_line(cur.table_name || ':' || cn);
END LOOP;
END;