{"id":382,"date":"2011-12-10T23:59:54","date_gmt":"2011-12-10T15:59:54","guid":{"rendered":"https:\/\/yangtingkun.net\/?p=382"},"modified":"2011-12-11T11:53:03","modified_gmt":"2011-12-11T03:53:03","slug":"statspack%e6%95%b0%e6%8d%ae%e6%b8%85%e9%99%a4%ef%bc%88%e4%b8%89%ef%bc%89","status":"publish","type":"post","link":"https:\/\/yangtingkun.net\/?p=382","title":{"rendered":"STATSPACK\u6570\u636e\u6e05\u9664\uff08\u4e09\uff09"},"content":{"rendered":"<p>Oracle\u6587\u6863\u63a8\u8350\u7684STATSPACK\u8fc7\u671f\u6570\u636e\u4ea7\u751f\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5220\u9664STATS$SNAPSHOT\u8868\u4e2d\u7684\u8bb0\u5f55\u3002<br \/>\n\u8fd9\u7bc7\u6587\u7ae0\u8bf4\u660e\u7b2c\u4e00\u7bc7\u6587\u7ae0\u4e2d\u6ca1\u6709\u63cf\u8ff0\u6e05\u695a\u7684\u6570\u636e\u6e05\u9664\u95ee\u9898\u3002<br \/>\nSTATSPACK\u6570\u636e\u6e05\u9664\uff08\u4e00\uff09\uff1a<a href=\"http:\/\/yangtingkun.itpub.net\/post\/468\/466248\">http:\/\/yangtingkun.itpub.net\/post\/468\/466248<\/a><br \/>\nSTATSPACK\u6570\u636e\u6e05\u9664\uff08\u4e8c\uff09\uff1a<a href=\"http:\/\/yangtingkun.itpub.net\/post\/468\/466514\">http:\/\/yangtingkun.itpub.net\/post\/468\/466514<\/a><br \/>\n\u4e4b\u6240\u4ee5\u9694\u4e863\u5e74\u624d\u6709\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5b8c\u5168\u662f\u91ce\u82b1\u7684\u7f18\u6545\u3002\u91ce\u82b1\u524d\u4e00\u6bb5\u5728\u6298\u817eSTATSPACK\u662f\u53d1\u73b0\u4e86\u6211\u7684\u6587\u7ae0\uff0c\u5e76\u4e14\u5bf9\u4e8e\u6211\u4e4b\u524d\u6ca1\u6709\u5f97\u51fa\u7ed3\u8bba\u7684\u6570\u636e\u6e05\u9664\u95ee\u9898\u505a\u51fa\u4e86\u89e3\u7b54\uff0c\u4e4b\u6240\u4ee5\u5220\u9664STATS$SNAPSHOT\u5c31\u4f1a\u5bfc\u81f4\u5176\u4ed6\u8868\u7684\u6570\u636e\u81ea\u52a8\u5220\u9664\uff0c\u5e76\u975e\u662fOracle\u7684\u4ec0\u4e48\u5185\u90e8\u673a\u5236\uff0c\u5176\u5b9e\u9053\u7406\u5f88\u7b80\u5355\uff0c\u5c31\u662fOracle\u5efa\u7acb\u7684\u662fCASCADE ON DELETE\u7ea6\u675f\u6761\u4ef6\u3002<br \/>\n\u770b\u6765\u81ea\u5df1\u5728\u5f00\u53d1\u65b9\u9762\u8fd8\u662f\u5916\u884c\uff0c\u4e00\u76f4\u6ca1\u6709\u60f3\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e8e\u662f\u7279\u610f\u627e\u5230\u4e86\u4e00\u4e2a9i\u4e0a\u90e8\u7f72STATSPACK\u7684\u6570\u636e\u5e93\uff0c\u9a8c\u8bc1\u4e00\u4e0b\uff1a<\/p>\n<pre lang='SQL'>SQL> SELECT CONSTRAINT_NAME, CONSTRAINT_TYPE, STATUS, DELETE_RULE\r\n  2  FROM DBA_CONSTRAINTS \r\n  3  WHERE TABLE_NAME = 'STATS$SNAPSHOT'\r\n  4  AND OWNER = 'PERFSTAT'   \r\n  5  AND CONSTRAINT_TYPE = 'P';\r\nCONSTRAINT_NAME                C STATUS   DELETE_RU\r\n------------------------------ - -------- ---------\r\nSTATS$SNAPSHOT_PK              P ENABLED\r\nSQL> SELECT CONSTRAINT_NAME, CONSTRAINT_TYPE, STATUS, DELETE_RULE\r\n  2  FROM DBA_CONSTRAINTS \r\n  3  WHERE OWNER = 'PERFSTAT'   \r\n  4  AND CONSTRAINT_TYPE = 'R'\r\n  5  AND R_CONSTRAINT_NAME = 'STATS$SNAPSHOT_PK';\r\nCONSTRAINT_NAME                C STATUS   DELETE_RU\r\n------------------------------ - -------- ---------\r\nSTATS$BG_EVENT_SUMMARY_FK      R ENABLED  CASCADE\r\nSTATS$BUFFER_POOL_STATS_FK     R ENABLED  CASCADE\r\nSTATS$DB_CACHE_ADVICE_FK       R ENABLED  CASCADE\r\nSTATS$DLM_MISC_FK              R ENABLED  CASCADE\r\nSTATS$ENQUEUE_STAT_FK          R ENABLED  CASCADE\r\nSTATS$FILESTATXS_FK            R ENABLED  CASCADE\r\nSTATS$INSTANCE_RECOVERY_FK     R ENABLED  CASCADE\r\nSTATS$LATCH_CHILDREN_FK        R ENABLED  CASCADE\r\nSTATS$LATCH_FK                 R ENABLED  CASCADE\r\nSTATS$LATCH_MISSES_SUMMARY_FK  R ENABLED  CASCADE\r\nSTATS$LATCH_PARENT_FK          R ENABLED  CASCADE\r\nSTATS$LIBRARYCACHE_FK          R ENABLED  CASCADE\r\nSTATS$PARAMETER_FK             R ENABLED  CASCADE\r\nSTATS$PGA_TARGET_ADVICE_FK     R ENABLED  CASCADE\r\nSTATS$RESOURCE_LIMIT_FK        R ENABLED  CASCADE\r\nSTATS$ROLLSTAT_FK              R ENABLED  CASCADE\r\nSTATS$ROWCACHE_SUMMARY_FK      R ENABLED  CASCADE\r\nSTATS$SEG_STAT_FK              R ENABLED  CASCADE\r\nSTATS$SESSION_EVENT_FK         R ENABLED  CASCADE\r\nSTATS$SESSTAT_FK               R ENABLED  CASCADE\r\nSTATS$SGASTAT_FK               R ENABLED  CASCADE\r\nSTATS$SGA_FK                   R ENABLED  CASCADE\r\nSTATS$SHARED_POOL_ADVICE_FK    R ENABLED  CASCADE\r\nSTATS$SQL_PGASTAT_FK           R ENABLED  CASCADE\r\nSTATS$SQL_PLAN_USAGE_FK        R ENABLED  CASCADE\r\nSTATS$SQL_STATISTICS_FK        R ENABLED  CASCADE\r\nSTATS$SQL_SUMMARY_FK           R ENABLED  CASCADE\r\nSTATS$SQL_WORKAREA_HIST_FK     R ENABLED  CASCADE\r\nSTATS$SYSSTAT_FK               R ENABLED  CASCADE\r\nSTATS$SYSTEM_EVENT_FK          R ENABLED  CASCADE\r\nSTATS$TEMPSTATXS_FK            R ENABLED  CASCADE\r\nSTATS$WAITSTAT_FK              R ENABLED  CASCADE\r\n32 rows selected.<\/pre>\n<p>\u663e\u7136\u4e4b\u6240\u4ee5\u5220\u9664STATS$SNAPSHOT\u8868\u4f1a\u5bfc\u81f4STATSPACK\u6574\u4f53\u6570\u636e\u88ab\u6e05\u9664\uff0c\u662f\u56e0\u4e3a\u6240\u6709\u7684\u5916\u952e\u90fd\u8bbe\u7f6e\u4e86CASCADE ON DELETE\u3002\u8fd9\u4e5f\u662f\u7b2c\u4e8c\u7bc7\u6587\u7ae0\u4e2d\u63cf\u8ff0\u7684\u90a3\u4e9b\u4e0d\u542bSNAP_ID\u7684\u8868\u6ca1\u6709\u81ea\u52a8\u6e05\u9664\u7684\u539f\u56e0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oracle\u6587\u6863\u63a8\u8350\u7684STATSPACK\u8fc7\u671f\u6570\u636e\u4ea7\u751f\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5220\u9664STATS$SNAPSHOT\u8868\u4e2d\u7684\u8bb0\u5f55\u3002 \u8fd9\u7bc7\u6587\u7ae0\u8bf4\u660e\u7b2c\u4e00\u7bc7\u6587\u7ae0\u4e2d\u6ca1\u6709\u63cf\u8ff0\u6e05\u695a\u7684\u6570\u636e\u6e05\u9664\u95ee\u9898\u3002 STATSPACK\u6570\u636e\u6e05\u9664\uff08\u4e00\uff09\uff1ahttp:\/\/yangtingkun.itpub.net\/post\/468\/466248 STATSPACK\u6570\u636e\u6e05\u9664\uff08\u4e8c\uff09\uff1ahttp:\/\/yangtingkun.itpub.net\/post\/468\/466514 \u4e4b\u6240\u4ee5\u9694\u4e863\u5e74\u624d\u6709\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5b8c\u5168\u662f\u91ce\u82b1\u7684\u7f18\u6545\u3002\u91ce\u82b1\u524d\u4e00\u6bb5\u5728\u6298\u817eSTATSPACK\u662f\u53d1\u73b0\u4e86\u6211\u7684\u6587\u7ae0\uff0c\u5e76\u4e14\u5bf9\u4e8e\u6211\u4e4b\u524d\u6ca1\u6709\u5f97\u51fa\u7ed3\u8bba\u7684\u6570\u636e\u6e05\u9664\u95ee\u9898\u505a\u51fa\u4e86\u89e3\u7b54\uff0c\u4e4b\u6240\u4ee5\u5220\u9664STATS$SNAPSHOT\u5c31\u4f1a\u5bfc\u81f4\u5176\u4ed6\u8868\u7684\u6570\u636e\u81ea\u52a8\u5220\u9664\uff0c\u5e76\u975e\u662fOracle\u7684\u4ec0\u4e48\u5185\u90e8\u673a\u5236\uff0c\u5176\u5b9e\u9053\u7406\u5f88\u7b80\u5355\uff0c\u5c31\u662fOracle\u5efa\u7acb\u7684\u662fCASCADE ON DELETE\u7ea6\u675f\u6761\u4ef6\u3002 \u770b\u6765\u81ea\u5df1\u5728\u5f00\u53d1\u65b9\u9762\u8fd8\u662f\u5916\u884c\uff0c\u4e00\u76f4\u6ca1\u6709\u60f3\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e8e\u662f\u7279\u610f\u627e\u5230\u4e86\u4e00\u4e2a9i\u4e0a\u90e8\u7f72STATSPACK\u7684\u6570\u636e\u5e93\uff0c\u9a8c\u8bc1\u4e00\u4e0b\uff1a SQL> SELECT CONSTRAINT_NAME, CONSTRAINT_TYPE, STATUS, DELETE_RULE 2 FROM DBA_CONSTRAINTS 3 WHERE TABLE_NAME = &#8216;STATS$SNAPSHOT&#8217; 4 AND OWNER = &#8216;PERFSTAT&#8217; 5 AND CONSTRAINT_TYPE = &#8216;P&#8217;; CONSTRAINT_NAME C STATUS DELETE_RU &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; &#8211; &#8212;&#8212;&#8211; &#8212;&#8212;&#8212; &hellip; <a href=\"https:\/\/yangtingkun.net\/?p=382\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[273,272],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2yiY3-6a","_links":{"self":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/382"}],"collection":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=382"}],"version-history":[{"count":2,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/382\/revisions"}],"predecessor-version":[{"id":384,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/382\/revisions\/384"}],"wp:attachment":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}