使用awrsqrpt.sql查看执行计划demo

SQL> @?/rdbms/admin/awrsqrpt.sql

Current Instance

~~~~~~~~~~~~~~~~

DB Id DB Name Inst Num Instance

----------- ------------ -------- ------------

2545367939 RAC 1 rac1

Specify the Report Type

~~~~~~~~~~~~~~~~~~~~~~~

Would you like an HTML report, or a plain text report?

Enter 'html' for an HTML report, or 'text' for plain text

Defaults to 'html'

Enter value for report_type: text

Type Specified: text

Instances in this Workload Repository schema

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DB Id Inst Num DB Name Instance Host

------------ -------- ------------ ------------ ------------

* 2545367939 1 RAC rac1 rac1

2545367939 2 RAC rac2 rac2

Using 2545367939 for database Id

Using 1 for instance number

Specify the number of days of snapshots to choose from

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Entering the number of days (n) will result in the most recent

(n) days of snapshots being listed. Pressing <return> without

specifying a number lists all completed snapshots.

Enter value for num_days: 1

Listing the last day's Completed Snapshots

Snap

Instance DB Name Snap Id Snap Started Level

------------ ------------ --------- ------------------ -----

rac1 RAC 3 14 Jan 2018 14:35 1

4 14 Jan 2018 16:00 1

Specify the Begin and End Snapshot Ids

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Enter value for begin_snap: 3

Begin Snapshot Id specified: 3

Enter value for end_snap: 4

End Snapshot Id specified: 4

Specify the SQL Id

~~~~~~~~~~~~~~~~~~

Enter value for sql_id: 5mycvad72f8qc

SQL ID specified: 5mycvad72f8qc

Specify the Report Name

~~~~~~~~~~~~~~~~~~~~~~~

The default report file name is awrsqlrpt_1_3_4.txt. To use this name,

press <return> to continue, otherwise enter an alternative.

Enter value for report_name: lijiaman_awrsqpt_1.txt

Using the report name lijiaman_awrsqpt_1.txt

---

报告内容如下：

WORKLOAD REPOSITORY SQL Report

Snapshot Period Summary

DB Name       DB Id       Instance     Inst Num  Startup Time     Release RAC

------------  ----------- ------------ --------  ---------------  ----------- ---

RAC          2545367939   rac1         1         14-Jan-18 14:23  11.2.0.1.0 YES

Snap Id     Snap Time             Sessions Curs/Sess

---------   -------------------   -------- ---------

Begin Snap: 3           14-Jan-18 14:35:02    46        1.0

End Snap:   4           14-Jan-18 16:00:03    48        1.1

Elapsed:       85.01 (mins)

DB Time:       0.63 (mins)

SQL Summary DB/Inst:     RAC/rac1 Snaps: 3-4

Elapsed

SQL Id          Time (ms)

-------------   ----------

5mycvad72f8qc          18

Module: PL/SQL Developer

SQL ??????

select j.job_id, j.job_title, j.min_salary, j.max_s

alary, e.employee_id, e.first_name||e.last_name as name,

e.email, e.phone_number from jobs j,employees e where j.job_

id = e.job_id

-------------------------------------------------------------

SQL ID: 5mycvad72f8qc              DB/Inst: RAC/rac1 Snaps: 3-4

-> 1st Capture and Last Capture Snap IDs

refer to Snapshot IDs witin the snapshot range

-> select j.job_id, j.job_title, j.min_salary, ...

Plan Hash Total Elapsed 1st Capture Last Capture

#    Value            Time(ms)        Executions     Snap ID      Snap ID

--- ---------------- ---------------- ------------- ------------- --------------

1    303035560          18              2              4              4

-------------------------------------------------------------

Plan 1(PHV: 303035560)

----------------------

Plan Statistics                                DB/Inst: RAC/rac1 Snaps: 3-4

-> % Total DB Time is the Elapsed Time of the SQL statement divided

into the Total Database Time multiplied by 100

Stat Name                                Statement  Per Execution %   Snap

---------------------------------------- ---------- --------------  --------

Elapsed Time (ms)                                18            9.1       0.0

CPU Time (ms)                                     7            3.5       0.0

Executions                                        2            N/A       N/A

Buffer Gets                                      23           11.5       0.0

Disk Reads                                        1            0.5       0.0

Parse Calls                                       2            1.0       0.0

Rows                                            214          107.0       N/A

User I/O Wait Time (ms)                           9            N/A       N/A

Cluster Wait Time (ms)                            0            N/A       N/A

Application Wait Time (ms)                        0            N/A       N/A

Concurrency Wait Time (ms)                        0            N/A       N/A

Invalidations                                     0            N/A       N/A

Version Count                                     2            N/A       N/A

Sharable Mem(KB)                                 34            N/A       N/A

-------------------------------------------------------------

Execution Plan

-------------------------------------------------------------------------------------------

| Id | Operation                   | Name      | Rows   | Bytes   | Cost (%CPU)| Time     |

-------------------------------------------------------------------------------------------

| 0 | SELECT STATEMENT             |           |        |         | 6 (100)    |          |

| 1 |  MERGE JOIN                  |           | 107    | 8988    | 6 (17)     | 00:00:01 |

| 2 |   TABLE ACCESS BY INDEX ROWID| JOBS      | 19     | 627     | 2 (0)      | 00:00:01 |

| 3 |    INDEX FULL SCAN           | JOB_ID_PK | 19     |         | 1 (0)      | 00:00:01 |

| 4 |   SORT JOIN                  |           | 107    | 5457    | 4 (25)     | 00:00:01 |

| 5 |    TABLE ACCESS FULL         | EMPLOYEES | 107    | 5457    | 3 (0)      | 00:00:01 |

-------------------------------------------------------------------------------------------

Full SQL Text

SQL ID SQL Text

------------ -----------------------------------------------------------------

5mycvad72f8q select j.job_id, j.job_title, j.min_salary, j.max_salary, e.emplo

oyee_id, e.first_name||e.last_name as name, e.email, e.phone_numb

er from jobs j, employees e where j.job_id = e.job_id