{"id":86,"date":"2011-09-10T23:58:48","date_gmt":"2011-09-10T15:58:48","guid":{"rendered":"https:\/\/yangtingkun.net\/?p=86"},"modified":"2011-09-22T17:56:45","modified_gmt":"2011-09-22T09:56:45","slug":"oracle-exadata%e7%9a%84table-access-storage-full%e6%89%a7%e8%a1%8c%e8%ae%a1%e5%88%92","status":"publish","type":"post","link":"https:\/\/yangtingkun.net\/?p=86","title":{"rendered":"Oracle Exadata\u7684TABLE ACCESS STORAGE FULL\u6267\u884c\u8ba1\u5212"},"content":{"rendered":"<p>\u8fd9\u4e2aTABLE ACCESS STORAGE FULL\u7684\u6267\u884c\u8ba1\u5212\u53ea\u6709\u5728ORACLE EXADATA\u4e0a\u624d\u56de\u51fa\u73b0\u3002<br \/>\nOracle\u5728Exadata\u4e0a\u589e\u52a0\u4e86\u4e00\u4e2a\u786c\u4ef6Exadata Programmable Storage Server\uff0c\u4f7f\u5f97\u5728\u5b58\u50a8\u7cfb\u7edf\u53ef\u4ee5\u53d8\u5f97\u66f4\u52a0\u667a\u80fd\u3002\u4ee5\u5f80\u5728\u8fdb\u884c\u5168\u8868\u626b\u63cf\u65f6\uff0c\u5373\u4f7f\u5b58\u5728\u8fc7\u6ee4\u6761\u4ef6\uff0c\u4e5f\u9700\u8981\u5c06\u5168\u90e8\u6570\u636e\u8bfb\u5230\u6570\u636e\u5e93\u670d\u52a1\u5668\u7aef\uff0c\u624d\u80fd\u8fc7\u6ee4\u6389\u65e0\u7528\u7684\u6570\u636e\u3002\u4f46\u662f\u901a\u8fc7\u8fd9\u4e2a\u786c\u4ef6\u548c\u5b58\u50a8\u8f6f\u4ef6\u7684\u914d\u5408\uff0c\u4f7f\u5f97\u8fd9\u79cd\u8fc7\u6ee4\u76f4\u63a5\u5728\u5b58\u50a8\u5c42\u8fdb\u884c\uff0c\u800c\u8fd4\u56de\u7ed9\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u5219\u662f\u67e5\u8be2\u9700\u8981\u7684\u7ed3\u679c\u3002\u4e00\u65b9\u9762\u5728\u5b58\u50a8\u76f4\u63a5\u8fc7\u6ee4\u63d0\u9ad8\u8bbf\u95ee\u6027\u80fd\uff0c\u53e6\u4e00\u65b9\u9762\u4f7f\u5f97\u8fd4\u56de\u4e2a\u670d\u52a1\u5668\u7684\u6570\u636e\u91cf\u5927\u5927\u4e0b\u964d\uff0c\u8fd9\u4e5f\u662fExadata\u8fdb\u884c\u5168\u8868\u626b\u63cf\u6027\u80fd\u4f18\u5f02\u7684\u91cd\u8981\u539f\u56e0\u4e4b\u4e00\u3002<br \/>\n\u5728\u6628\u5929\u7ec3\u624b\u7684\u65f6\u5019\uff0c\u8bb0\u5f55\u4e86\u4e00\u4e0b\u8fd9\u4e2a\u6267\u884c\u8ba1\u5212\uff0c\u800c\u8fd9\u4e2a\u6267\u884c\u8ba1\u5212\u5728\u81ea\u5df1\u7684\u6d4b\u8bd5\u73af\u5883\u4e2d\u662f\u4e0d\u53ef\u80fd\u51fa\u73b0\u7684\uff1a<\/p>\n<pre lang='SQL'>SQL> select count(*) from t;\r\n  COUNT(*)\r\n---------- \r\n  49527761\r\nElapsed: 00:00:02.28\r\nExecution Plan\r\n----------------------------------------------------------    \r\nPlan hash value: 2966233522\r\n---------------------------------------------------------------------------\r\n| Id  | Operation                  | Name | Rows  | Cost (%CPU)| Time     |\r\n---------------------------------------------------------------------------\r\n|   0 | SELECT STATEMENT           |      |     1 |   114K  (1)| 00:22:59 |\r\n|   1 |  SORT AGGREGATE            |      |     1 |            |          |\r\n|   2 |   TABLE ACCESS STORAGE FULL| T    |   228M|   114K  (1)| 00:22:59 |\r\n---------------------------------------------------------------------------\r\nNote\r\n-----\r\n   - dynamic sampling used for this statement (level=2)\r\nStatistics\r\n----------------------------------------------------------     \r\n          0  recursive calls\r\n          0  db block gets\r\n     418736  consistent gets\r\n          0  physical reads\r\n          0  redo size\r\n        529  bytes sent via SQL*Net to client\r\n        524  bytes received via SQL*Net from client\r\n          2  SQL*Net roundtrips to\/from client\r\n          0  sorts (memory)\r\n          0  sorts (disk)\r\n          1  rows processed\r\nSQL> select count(*) from t where owner = 'TEST';\r\n  COUNT(*)\r\n----------\r\n       611\r\nElapsed: 00:00:02.83\r\nExecution Plan\r\n----------------------------------------------------------\r\nPlan hash value: 2966233522\r\n-----------------------------------------------------------------------------------\r\n| Id  | Operation                  | Name | Rows  | Bytes | Cost (%CPU)| Time     |\r\n-----------------------------------------------------------------------------------\r\n|   0 | SELECT STATEMENT           |      |     1 |    17 |   115K  (2)| 00:23:07 |\r\n|   1 |  SORT AGGREGATE            |      |     1 |    17 |            |          |\r\n|*  2 |   TABLE ACCESS STORAGE FULL| T    |  6670 |   110K|   115K  (2)| 00:23:07 |\r\n-----------------------------------------------------------------------------------\r\nPredicate Information (identified by operation id):\r\n---------------------------------------------------\r\n   2 - storage(\"OWNER\"='TEST')\r\n       filter(\"OWNER\"='TEST')\r\nNote\r\n-----\r\n   - dynamic sampling used for this statement (level=2)\r\nStatistics\r\n----------------------------------------------------------\r\n          0  recursive calls\r\n          0  db block gets\r\n     418736  consistent gets\r\n          0  physical reads\r\n          0  redo size\r\n        527  bytes sent via SQL*Net to client\r\n        524  bytes received via SQL*Net from client\r\n          2  SQL*Net roundtrips to\/from client\r\n          0  sorts (memory)\r\n          0  sorts (disk)\r\n          1  rows processed<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230Predicate Information\u4e2d\uff0c\u8bbf\u95ee\u548c\u8fc7\u6ee4\u6761\u4ef6\u5206\u522b\u662fstorage(&#8220;OWNER&#8221;=&#8217;TEST&#8217;)\u548cfilter(&#8220;OWNER&#8221;=&#8217;TEST&#8217;)\uff0c\u8fd9\u8bf4\u660e\u9650\u5236\u6761\u4ef6\u88ab\u63a8\u5230\u4e86\u5b58\u50a8\u5c42\u6267\u884c\uff0c\u4e5f\u6b63\u662f\u8fd9\u4e2a\u539f\u56e0\uff0c\u4f7f\u5f97Oracle\u4f30\u7b97\u7684\u8bbf\u95ee\u884c\u6570\u6ca1\u6709\u592a\u5927\u7684\u504f\u5dee\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e2aTABLE ACCESS STORAGE FULL\u7684\u6267\u884c\u8ba1\u5212\u53ea\u6709\u5728ORACLE EXADATA\u4e0a\u624d\u56de\u51fa\u73b0\u3002 Oracle\u5728Exadata\u4e0a\u589e\u52a0\u4e86\u4e00\u4e2a\u786c\u4ef6Exadata Programmable Storage Server\uff0c\u4f7f\u5f97\u5728\u5b58\u50a8\u7cfb\u7edf\u53ef\u4ee5\u53d8\u5f97\u66f4\u52a0\u667a\u80fd\u3002\u4ee5\u5f80\u5728\u8fdb\u884c\u5168\u8868\u626b\u63cf\u65f6\uff0c\u5373\u4f7f\u5b58\u5728\u8fc7\u6ee4\u6761\u4ef6\uff0c\u4e5f\u9700\u8981\u5c06\u5168\u90e8\u6570\u636e\u8bfb\u5230\u6570\u636e\u5e93\u670d\u52a1\u5668\u7aef\uff0c\u624d\u80fd\u8fc7\u6ee4\u6389\u65e0\u7528\u7684\u6570\u636e\u3002\u4f46\u662f\u901a\u8fc7\u8fd9\u4e2a\u786c\u4ef6\u548c\u5b58\u50a8\u8f6f\u4ef6\u7684\u914d\u5408\uff0c\u4f7f\u5f97\u8fd9\u79cd\u8fc7\u6ee4\u76f4\u63a5\u5728\u5b58\u50a8\u5c42\u8fdb\u884c\uff0c\u800c\u8fd4\u56de\u7ed9\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u5219\u662f\u67e5\u8be2\u9700\u8981\u7684\u7ed3\u679c\u3002\u4e00\u65b9\u9762\u5728\u5b58\u50a8\u76f4\u63a5\u8fc7\u6ee4\u63d0\u9ad8\u8bbf\u95ee\u6027\u80fd\uff0c\u53e6\u4e00\u65b9\u9762\u4f7f\u5f97\u8fd4\u56de\u4e2a\u670d\u52a1\u5668\u7684\u6570\u636e\u91cf\u5927\u5927\u4e0b\u964d\uff0c\u8fd9\u4e5f\u662fExadata\u8fdb\u884c\u5168\u8868\u626b\u63cf\u6027\u80fd\u4f18\u5f02\u7684\u91cd\u8981\u539f\u56e0\u4e4b\u4e00\u3002 \u5728\u6628\u5929\u7ec3\u624b\u7684\u65f6\u5019\uff0c\u8bb0\u5f55\u4e86\u4e00\u4e0b\u8fd9\u4e2a\u6267\u884c\u8ba1\u5212\uff0c\u800c\u8fd9\u4e2a\u6267\u884c\u8ba1\u5212\u5728\u81ea\u5df1\u7684\u6d4b\u8bd5\u73af\u5883\u4e2d\u662f\u4e0d\u53ef\u80fd\u51fa\u73b0\u7684\uff1a SQL> select count(*) from t; COUNT(*) &#8212;&#8212;&#8212;- 49527761 Elapsed: 00:00:02.28 Execution Plan &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- Plan hash value: 2966233522 &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; | Id | Operation | Name | Rows | Cost (%CPU)| Time &hellip; <a href=\"https:\/\/yangtingkun.net\/?p=86\">Continue reading <span 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