outline\u4f7f\u7528\u7b80\u4ecb
\n\u4e0b\u8fb9\u7684\u8bed\u53e5\u662f\u5728\u6ca1\u6709\u7d22\u5f15\u7684\u60c5\u51b5\u4e0b\u7684\u6267\u884c\u8ba1\u5212<\/p>\n
\r\nSQL> conn yallonking\/yallonking\r\nConnected.\r\nSQL> set autot traceonly\r\nSQL> set line 400\r\nSQL> select * from yallonking where object_id=20;\r\n\r\n\r\nExecution Plan\r\n----------------------------------------------------------\r\nPlan hash value: 2582482548\r\n\r\n--------------------------------------------------------------------------------\r\n| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |\r\n--------------------------------------------------------------------------------\r\n| 0 | SELECT STATEMENT | | 8 | 1416 | 158 (2)| 00:00:02 |\r\n|* 1 | TABLE ACCESS FULL| YALLONKING | 8 | 1416 | 158 (2)| 00:00:02 |\r\n--------------------------------------------------------------------------------\r\n\r\nPredicate Information (identified by operation id):\r\n---------------------------------------------------\r\n\r\n 1 - filter("OBJECT_ID"=20)\r\n\r\nNote\r\n-----\r\n - dynamic sampling used for this statement\r\n\r\n\r\nStatistics\r\n----------------------------------------------------------\r\n 288 recursive calls\r\n 0 db block gets\r\n 795 consistent gets\r\n 684 physical reads\r\n 0 redo size\r\n 1197 bytes sent via SQL*Net to client\r\n 385 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\n<\/pre>\n\u6211\u4eec\u5c06\u4e00\u4e2a\u6ca1\u6709\u7d22\u5f15\u7684\u67e5\u8be2\u5b58\u50a8\u5728outline\u7684category\u4e2d\t\t <\/p>\n
\r\nSQL> create or replace outline yallonking for category yallonking on select * from yallonking where object_id=20;\r\n\r\nOutline created.\r\n<\/pre>\n\u521b\u5efa\u4e00\u4e2a\u7d22\u5f15<\/p>\n
\r\nSQL> create index idx_yallonking on yallonking(object_id);\r\n\r\nIndex created.\r\n<\/pre>\n\u518d\u6b21\u67e5\u770b\u8be5sql\u6267\u884c\u8ba1\u5212<\/p>\n
\r\nSQL> set autot traceonly\r\nSQL> select * from yallonking where object_id=20;\r\n\r\n\r\nExecution Plan\r\n----------------------------------------------------------\r\nPlan hash value: 4208659539\r\n\r\n----------------------------------------------------------------------------------------------\r\n| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |\r\n----------------------------------------------------------------------------------------------\r\n| 0 | SELECT STATEMENT | | 1 | 177 | 2 (0)| 00:00:01 |\r\n| 1 | TABLE ACCESS BY INDEX ROWID| YALLONKING | 1 | 177 | 2 (0)| 00:00:01 |\r\n|* 2 | INDEX RANGE SCAN | IDX_YALLONKING | 1 | | 1 (0)| 00:00:01 |\r\n----------------------------------------------------------------------------------------------\r\n\r\nPredicate Information (identified by operation id):\r\n---------------------------------------------------\r\n\r\n 2 - access("OBJECT_ID"=20)\r\n\r\nNote\r\n-----\r\n - dynamic sampling used for this statement\r\n\r\n\r\nStatistics\r\n----------------------------------------------------------\r\n 9 recursive calls\r\n 0 db block gets\r\n 84 consistent gets\r\n 4 physical reads\r\n 0 redo size\r\n 1201 bytes sent via SQL*Net to client\r\n 385 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\n<\/pre>\n\u542f\u7528outline category\t\t <\/p>\n
\r\nSQL> ALTER SESSION SET USE_STORED_OUTLINES = yallonking;\r\n\r\nSession altered.\r\n<\/pre>\n\u518d\u6b21\u67e5\u770b\u8be5sql\u6267\u884c\u8ba1\u5212<\/p>\n
\r\nSQL> select * from yallonking where object_id=20;\r\n\r\n\r\nExecution Plan\r\n----------------------------------------------------------\r\nPlan hash value: 2582482548\r\n\r\n--------------------------------------------------------------------------------\r\n| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |\r\n--------------------------------------------------------------------------------\r\n| 0 | SELECT STATEMENT | | 575 | 99K| 158 (2)| 00:00:02 |\r\n|* 1 | TABLE ACCESS FULL| YALLONKING | 575 | 99K| 158 (2)| 00:00:02 |\t\t\/\/\u6267\u884c\u8ba1\u5212\u4fdd\u6301\u4ee5\u524d\u7684\r\n--------------------------------------------------------------------------------\r\n\r\nPredicate Information (identified by operation id):\r\n---------------------------------------------------\r\n\r\n 1 - filter("OBJECT_ID"=20)\r\n\r\nNote\r\n-----\r\n - outline "YALLONKING" used for this statement\t\t\/\/\u6b64\u5904\u4f7f\u7528\u4e86outline category\r\n\r\n\r\nStatistics\r\n----------------------------------------------------------\r\n 35 recursive calls\r\n 123 db block gets\r\n 710 consistent gets\r\n 0 physical reads\r\n 576 redo size\r\n 1197 bytes sent via SQL*Net to client\r\n 385 bytes received via SQL*Net from client\r\n 2 SQL*Net roundtrips to\/from client\r\n 2 sorts (memory)\r\n 0 sorts (disk)\r\n 1 rows processed\r\n<\/pre>\n\u4e0b\u8fb9\u53d6\u6d88outline\uff0c\u6267\u884c\u8ba1\u5212\u6062\u590d\u6b63\u5e38<\/p>\n
\r\nSQL> ALTER SESSION SET USE_STORED_OUTLINES = false;\r\n\r\nSession altered.\r\n\t\t \r\nSQL> select * from yallonking where object_id=20;\r\n\r\n\r\nExecution Plan\r\n----------------------------------------------------------\r\nPlan hash value: 4208659539\r\n\r\n----------------------------------------------------------------------------------------------\r\n| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |\r\n----------------------------------------------------------------------------------------------\r\n| 0 | SELECT STATEMENT | | 1 | 177 | 2 (0)| 00:00:01 |\r\n| 1 | TABLE ACCESS BY INDEX ROWID| YALLONKING | 1 | 177 | 2 (0)| 00:00:01 |\r\n|* 2 | INDEX RANGE SCAN | IDX_YALLONKING | 1 | | 1 (0)| 00:00:01 |\r\n----------------------------------------------------------------------------------------------\r\n\r\nPredicate Information (identified by operation id):\r\n---------------------------------------------------\r\n\r\n 2 - access("OBJECT_ID"=20)\r\n\r\nNote\r\n-----\r\n - dynamic sampling used for this statement\r\n\r\n\r\nStatistics\r\n----------------------------------------------------------\r\n 0 recursive calls\r\n 0 db block gets\r\n 4 consistent gets\r\n 0 physical reads\r\n 0 redo size\r\n 1201 bytes sent via SQL*Net to client\r\n 385 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\n\r\n<\/pre>\n\u67e5\u770boutline\t <\/p>\n
\r\nSQL> SELECT NAME, SQL_TEXT \r\n 2 FROM USER_OUTLINES \r\n 3 WHERE CATEGORY='YALLONKING';\r\n\r\nNAME SQL_TEXT\r\n------------------------------ --------------------------------------------------------------------------------\r\nYALLONKING select * from yallonking where object_id=20\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"outline\u4f7f\u7528\u7b80\u4ecb \u4e0b\u8fb9\u7684\u8bed\u53e5\u662f\u5728\u6ca1\u6709\u7d22\u5f15\u7684\u60c5\u51b5\u4e0b\u7684\u6267\u884c\u8ba1\u5212 SQL> conn yallonkin […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[87],"tags":[],"_links":{"self":[{"href":"http:\/\/www.yallonking.com\/index.php?rest_route=\/wp\/v2\/posts\/1250"}],"collection":[{"href":"http:\/\/www.yallonking.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.yallonking.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.yallonking.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.yallonking.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1250"}],"version-history":[{"count":2,"href":"http:\/\/www.yallonking.com\/index.php?rest_route=\/wp\/v2\/posts\/1250\/revisions"}],"predecessor-version":[{"id":1252,"href":"http:\/\/www.yallonking.com\/index.php?rest_route=\/wp\/v2\/posts\/1250\/revisions\/1252"}],"wp:attachment":[{"href":"http:\/\/www.yallonking.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yallonking.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1250"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yallonking.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}