• sqlplus下 查看oracle 执行计划


    Microsoft Windows [版本 6.1.7601]
    版权所有 (c) 2009 Microsoft Corporation。保留所有权利。
    
    C:Userszhangzheng2>sqlplus FWMS4SZ_DEV_MAIN_DDL/FWMS4SZ_DEV_MAIN_DDL@ORCL_10.10.21.48
    
    SQL*Plus: Release 10.2.0.3.0 - Production on 星期四 10月 31 10:46:53 2013
    
    Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.
    
    
    连接到:
    Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
    With the Partitioning, OLAP and Data Mining options
    
    SQL> set serveroutput on size 100000
    SQL> spool c:/explain_plan.txt
    SQL> set linesize 300
    SQL> set timing on
    SQL> set autotrace traceonly
    SQL> SELECT RELATION_ID,
      2         PARENT_ID,
      3         X_OR_Y_AXIS,
      4         A.DIMENSIONALITY_CODE,
      5         B.DIMENSIONALITY_NAME,
      6         A.DIMENSIONALITY_ID,
      7         TABLE_NAME,
      8         COLSPAN,
      9         ROWSPAN,
     10         PROJECT_NO,
     11         PROJECT_ID
     12    FROM PROD_PROJECT_DIMENSIONALITY A, PROD_DIMENSIONALITY_MEASURE B
     13   WHERE A.DIMENSIONALITY_CODE = B.DIMENSIONALITY_CODE
     14     AND PROJECT_NO = 'P0020'
     15   ORDER BY TO_NUMBER(RELATION_ID) ASC
     16  /
    
    已选择10行。
    
    已用时间:  00: 00: 00.13
    
    执行计划
    ----------------------------------------------------------
    Plan hash value: 3661685015
    
    ---------------------------------------------------------------------------------------------------
    | Id  | Operation           | Name                        | Rows  | Bytes | Cost (%CPU)| Time     |
    ---------------------------------------------------------------------------------------------------
    |   0 | SELECT STATEMENT    |                             |    10 |   700 |    11  (19)| 00:00:01 |
    |   1 |  SORT ORDER BY      |                             |    10 |   700 |    11  (19)| 00:00:01 |
    |*  2 |   HASH JOIN         |                             |    10 |   700 |    10  (10)| 00:00:01 |
    |*  3 |    TABLE ACCESS FULL| PROD_PROJECT_DIMENSIONALITY |    10 |   540 |     6   (0)| 00:00:01 |
    |   4 |    TABLE ACCESS FULL| PROD_DIMENSIONALITY_MEASURE |   680 | 10880 |     3   (0)| 00:00:01 |
    ---------------------------------------------------------------------------------------------------
    
    Predicate Information (identified by operation id):
    ---------------------------------------------------
    
       2 - access("A"."DIMENSIONALITY_CODE"="B"."DIMENSIONALITY_CODE")
       3 - filter("PROJECT_NO"='P0020')
    
    
    统计信息
    ----------------------------------------------------------
              1  recursive calls
              0  db block gets
             30  consistent gets
              0  physical reads
              0  redo size
           1295  bytes sent via SQL*Net to client
            350  bytes received via SQL*Net from client
              2  SQL*Net roundtrips to/from client
              1  sorts (memory)
              0  sorts (disk)
             10  rows processed
    
    SQL> spool off;
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  • 原文地址:https://www.cnblogs.com/cczz_11/p/3398761.html
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