V$sqlarea.buffer_gets and v$sqlarea.sorts

Question

What exactly the meaning of the fields ?
What conclusion I can get from higher result ?
v$sqlarea.buffer_gets
v$sqlarea.sorts
I seek for more knowledge and deep understanding then the table description
BUFFER_GETS     NUMBER     Sum of buffer gets over all child cursors
SORTS     NUMBER     Sum of the number of sorts that were done for all the child cursors
Thanks

Answer 1

No, the count is a total count that has happened. See below, I have an 11g (11106) db started and I fired up the query from scott for some data. You can see the counts are increasing all the time.
Session1 (Sys)
SQL> select buffer_gets from V$sqlarea where sql_text like 'select * from scott%';
BUFFER_GETS
         94
SQL> /
BUFFER_GETS
        102
SQL> /
BUFFER_GETS
        110
SQL> /
BUFFER_GETS
        118
SQL> /
BUFFER_GETS
        126
SQL> /
BUFFER_GETS
        134
SQL> /
BUFFER_GETS
        142
SQL>Session2(Scott)
sql> select * from scott.emp;
<output trimmed>
EMPNO ENAME JOB MGR HIREDATE SAL COMM
DEPTNO
7782 CLARK MANAGER 7839 09-JUN-81 10
10
7876 ADAMS CLERK 7788 23-MAY-87 10
20
7900 JAMES CLERK 7698 03-DEC-81 10
30
14 rows selected.
SQL> /
EMPNO ENAME JOB MGR HIREDATE SAL COMM
DEPTNO
7369 SMITH CLERK 7902 17-DEC-80 10
20
So you can't really say that the number can be reduced looking at the number from this view. You need to make the data access lesser so that the number of blocks touched are lesser.
HTH
Aman....